There is provided a mounting method for a building surface material that has good mounting properties and that ensures a predetermined adhesive area, in which a base material and a building surface material can be mounted via an adhesive. A mounting method of a building surface material for mounting the building surface material 10 to a base material 40 made of steel, the mounting method including a temporary fixing step of temporarily fixing a part of a back surface 12 of the building surface material 10 to an adhesive 80 adhered to a mounting surface 41 of the base material 40; and a main fixing step of bringing a magnetic attraction jig M in contact with a front surface 11 on an opposite side of the back surface 12 of the building surface material 10, and moving the magnetic attraction jig M along the adhesive 80 to attract the base material 40 by an attraction force F of the magnetic attraction jig M and pressure-bond the building surface material 10 and the base material 40 to each other.
E04B 2/74 - Removable non-load-bearing partitions; Partitions with a free upper edge
E04F 13/08 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
E04F 21/18 - Implements for finishing work on buildings for setting wall or ceiling slabs or plates
2.
WOODEN LOAD-BEARING WALL, METHOD OF CONSTRUCTING WOODEN LOAD-BEARING WALL, METHOD OF INCREASING CO-EFFICIENT OF EFFECTIVE WALL LENGTH OF WOODEN LOAD-BEARING WALL, AND GYPSUM-BASED LOAD-BEARING BOARD
To increase a co-efficient of effective wall length of a wooden load-bearing wall, without additionally attaching a reinforcement material or a stiffening material, and without increasing a specific gravity and/or a board thickness of a gypsum-based board. A gypsum-based load-bearing board 10 exhibits a lateral nail resistance of 500 N or more and includes a main material or a core material formed from a board-shaped hardened gypsum containing an inorganic fiber and an organic-based strength-enhancer; and a paper covering at least front and back surfaces the main material or the core material. The load-bearing board has a surface density in a range from 6.5 to 8.9 kg/m2 and a compressive strength of 6.5 N/mm2 or more, and exhibits an ultimate displacement (5u) of more than 20xl0-3 rad and an initial stiffness (K) of 2.0 kN/10~3 rad or more measured by an in-plane shear test of the load-bearing wall. Accordingly, the plastic modulus (p) is increased not only by increasing the ultimate displacement but also by reducing the yield point displacement (5v), thereby effectively or efficiently increasing the co¬ efficient of effective wall length and the short¬ term reference shear strength (P0) of the wooden load-bearing wall
B32B 13/08 - Layered products essentially comprising a water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such substances as the main or only constituent of a layer, next to another layer of a specific substance of paper or cardboard
E04B 2/56 - Walls of framework or pillarwork; Walls incorporating load-bearing elongated members
E04C 2/04 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement
E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
This smoother comprises: a conveyance device for a molded body; a pair of arms respectively arranged on both widthwise end sides of the conveyance device and each having longitudinal ends that can be pivotally moved up and down with respect to a conveyance surface of the conveyance device; a smoother board that is fixed on one longitudinal end side of the pair of arms; a weight that is attached to each of the pair of arms and movable along the longitudinal direction of the arms; a weight position change device that changes the position of the weight on the arms; and a first control device that controls the position of the weights on the arms via the weight position change device.
B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
B28B 5/02 - Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
4.
CUTTING DEVICE, APPARATUS FOR MANUFACTURING GYPSUM BOARD, AND CUTTING METHOD
There is provided a cutting apparatus with which, even if a plate body to be cut is warped, it is easy to obtain a cut product of the same quality as when a plate body which is not warped is cut. The cutting apparatus is provided on a conveyor for conveying a plate body and cuts the plate body being conveyed by the conveyor. The cutting apparatus includes a cutting blade that cuts the plate body in a direction parallel to a direction of conveying the plate body, and a pressing unit including, at a side position of the cutting blade, a pressing plate provided to be movable between a pressing position where the pressing plate presses the plate body and a retracted position where the pressing plate is retracted from the pressing position. The cutting apparatus cuts the plate body with the cutting blade while pressing the plate body with the pressing plate.
B23D 19/00 - Shearing machines or shearing devices cutting by rotary discs
B23D 47/00 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
B28B 1/50 - Producing shaped articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
B28B 11/14 - Apparatus or processes for treating or working the shaped articles for dividing shaped articles by cutting
B28D 1/04 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular saw blades or saw discs
B28D 7/04 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for supporting or holding work
E04C 2/04 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement
5.
FELT-BASED FOUR-SIDE-PROCESSING MATERIAL AND METHOD FOR PRODUCING SAID PROCESSING MATERIAL
There is provided a technique by which when using a felt-based four-sides-processing material having a release paper-attached pressure-sensitive adhesive layer, not only a worker can release the release paper from a pressure-sensitive adhesive layer quickly and favorably but also breakage of a base material made of rock wool can be suppressed. There is provided a felt-based four-sides-processing material having a pressure-sensitive adhesive layer having a continuous pressure-sensitive adhesive region provided on any of flat surfaces of a base material in a longitudinal direction of the flat surface and release paper pasted to the pressure-sensitive adhesive layer, wherein the base material is a laminate obtained by laminating felt-like rock wool in a thickness direction, the laminate having a thickness of 3 to 50 mm and a width of 5 mm to 10 cm and having a long, rectangular column shape, the pressure-sensitive adhesive layer has a configuration such that the continuous pressure-sensitive adhesive region is provided on the flat surface of the base material where the pressure-sensitive adhesive layer is provided in a width narrower than a width of a short side of the base material, and a non-pressure-sensitive adhesive region where a pressure-sensitive adhesive is not present is provided along the whole of at least one edge in the longitudinal direction, and the release paper has the same size as the flat surface of the base material. There is also provided a method for producing the felt-based four-sides-processing material.
E04B 1/94 - Protection against other undesired influences or dangers against fire
E04B 2/82 - Removable non-load-bearing partitions; Partitions with a free upper edge characterised by the manner in which edges are connected to the building; Means therefor; Special details of easily-removable partitions
6.
LATENT HEAT STORAGE GYPSUM BOARD AND PARTITION STRUCTURE
This latent heat storage gypsum board has: a gypsum board having a first main surface and a second main surface positioned on the opposite side to the first major surface; and a latent heat storage layer disposed on at least a portion of the first main surface of the gypsum board and containing a latent heat storage material and a binder, wherein the heat storage amount measured in a measurement temperature range of 15°C to 35°C according to the heat storage amount measurement specified in ASTM C 1784 is 260 kJ/m2 or more, and when heat generation is evaluated according to the heat generation test specified in JIS A 6901 (2014) by setting the surface on which the latent heat storage layer is disposed as the rear surface, the latent heat storage gypsum board is found to have first-class heat generation performance.
B32B 13/04 - Layered products essentially comprising a water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such substances as the main or only constituent of a layer, next to another layer of a specific substance
C04B 41/85 - Coating or impregnating with inorganic materials
C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa
E04B 1/76 - Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
E04C 2/04 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement
E04C 2/30 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
F28D 20/02 - Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups or using latent heat
7.
FOREIGN MATTER REMOVING APPARATUS, GYPSUM-BASED BUILDING BOARD MANUFACTURING APPARATUS, AND FOREIGN MATTER REMOVING METHOD
A foreign matter removing apparatus for removing foreign matter in a powder and granular material is provided. The foreign matter removing apparatus includes: a conveyance device configured to convey the powder and granular material from a supply port to a discharge port that are for the powder and granular material; and a foreign matter sedimentation device that is provided between the supply port and the discharge port on a conveyance path of the conveyance device, and is configured to sediment the foreign matter in the powder and granular material. The foreign matter sedimentation device includes both a foreign matter discharge port provided at a lowest position in a height direction and a bottom inclined toward the foreign matter discharge port.
B07B 4/08 - Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
B03B 5/46 - Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using dry heavy media; Devices therefor
C04B 11/26 - Calcium sulfate cements starting from phosphogypsum or from waste, e.g. purification products of smoke
8.
GLUE SUPPLY APPARATUS FOR GYPSUM BOARD, GYPSUM BOARD MANUFACTURING APPARATUS, AND GYPSUM BOARD MANUFACTURING METHOD
A glue supply apparatus for a gypsum board supplies glue to a board base paper of the gypsum board. The glue supply apparatus includes a tank section configured to store the glue; a supply port disposed near an end of the board base paper of the gypsum board and configured to supply the glue; and a pump section disposed on a glue supply path between the tank section and the supply port. The pump section is a positive displacement pump.
The present invention provides a neutron beam shielding gypsum-based construction board which contains gypsum, a boron-containing material that contains from 1.0 part by mass to 120 parts by mass of boron relative to 100 parts by mass of the gypsum, and from 0.05 part by mass to 2.0 parts by mass of a water reducing agent relative to 100 parts by mass of the gypsum. The boron-containing material contains one or more substances that are selected from among calcium borate, boron carbide, boric acid, boron oxide, sodium borate and calcium boride; and the dry specific gravity thereof is from 0.65 to 1.6.
G21F 1/04 - Concretes; Other hydraulic hardening materials
B28B 1/00 - Producing shaped articles from the material
B28B 11/24 - Apparatus or processes for treating or working the shaped articles for curing, setting or hardening
B28C 5/00 - Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
B32B 13/00 - Layered products essentially comprising a water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
C04B 22/00 - Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators
C04B 24/00 - Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
The present invention increases the wall scale factor of a wooden structure bearing wall without additionally attaching a reinforcing material or stiffener, and without increasing the specific gravity and/or sheet thickness of a gypsum-based surface material. A gypsum-based bearing surface material (10) for a wooden structure bearing wall is configured from: a main material or a core material comprising a plate-shaped gypsum cured body in which inorganic fibers and an organic-based strength-improving material are blended so as to exhibit a nail-side surface resistance of 500 N or greater; and a paper member covering at least front and back surfaces of the main material or core material. This bearing surface material has a surface density within a range of 6.5-8.9 kg/m2, and, in an in-plane shearing test, exhibits a final displacement (?u2) greater than 20×10-3 rad and a final bearing capacity (corrected value) (Pu') greater than 7.6 kN. By using a wooden structure bearing wall in which this bearing surface material is used, a short-term standard shearing bearing capacity (P0) that is greater than that of a wooden structure bearing wall, in which is used the same type of bearing surface material having a surface density of 9.0 kg/m2 or greater, is obtained.
E04B 2/56 - Walls of framework or pillarwork; Walls incorporating load-bearing elongated members
E04C 2/04 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement
E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
11.
CONNECTION STRUCTURE BETWEEN PARTITION WALLS AND FLOOR SLAB, AND METHOD FOR CONSTRUCTING SAME
A connection structure between partition walls and a floor slab is provided. The connection structure is configured to connect a first partition wall and a second partition wall to a floor slab. The first partition wall and the second partition wall are connected to the floor slab, and separate a vertical compartment from an upper floor room and a lower floor room. A lower runner configured to accommodate a lower end of a first stud is placed on the floor slab. An upper runner configured to accommodate an upper end of a second stud that forms the second partition wall is placed below the floor slab. A first wall material is fixed to the first stud through a first back batten and fixed to the second stud through a second back batten. The first wall material extends from the first stud to the second stud in the vertical compartment.
E04B 1/94 - Protection against other undesired influences or dangers against fire
E04B 2/82 - Removable non-load-bearing partitions; Partitions with a free upper edge characterised by the manner in which edges are connected to the building; Means therefor; Special details of easily-removable partitions
12.
CEILING CLIP WITH ENGAGING PROJECTIONS, CEILING BASE, AND METHOD FOR CONSTRUCTING SAME
Provided are: a clip having good workability and with which it is possible to suppress or prevent detachment of a ceiling surface material when a building vibrates; a ceiling base using the clip; and a method for installing the ceiling base. A clip 50 for securing a joist 40 to a joist bearing 30, the clip 50 having: a top piece 53 that has the width of the joist bearing 30; a first hanging piece 51 that hangs from one end of the top piece 53 and comprises therebelow a first engagement projection 54 that engages with the joist 40; and a second hanging piece 52 that hangs from the other end of the top piece 53 and comprises therebelow a second engagement projection 57 that is locked to the joist 40, the first hanging piece 51 having a greater length than the second hanging piece 52, a recessed section 58 that projects in the direction of the second hanging piece 52 being provided in the midway position of the first hanging piece 51, only the first engagement projection 54 comprising an engagement cavity 55 that is concave downward at the projecting base of the first engagement projection 54, and a reinforcement rib 56 being provided on the outer side of at least the engagement cavity 55.
Provided are a heat-insulating and sound-absorbing material improved in construction workability, and a partition wall in which degradation in sound insulation performance is suppressed. The heat-insulating and sound-absorbing material 1 is comprised of an agglomerate of inorganic fibers, wherein the agglomerate has a density of 10 to 20 kg/m3 and the inorganic fibers of the agglomerate have a length-weighted average fiber diameter of 2.0 to 8.7 ?m, and wherein the agglomerate contains: 20 to 66% of inorganic fibers having a length-weighted average fiber diameter of less than 4.0 µm; and 13 to 58% of inorganic fibers having a length-weighted average fiber diameter of 7.0 µm or more. The partition wall comprises a hollow wall portion, and the above heat-insulating and sound-absorbing material installed in the hollow wall portion.
D04H 1/587 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
E04B 1/76 - Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
E04B 1/82 - Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
Provided is a pretreatment mixing stirrer which is disposed at a front stage of a slurry formation mixing stirrer for making gypsum slurry by kneading calcined gypsum and water and performs pretreatment by mixing the calcined gypsum with one or more additives selected from liquid and powder, the pretreatment mixing stirrer having: a cylindrical housing which has an upper plate, a lower plate disposed to face the upper plate, and side plates arranged between the upper plate and the lower plate, and has a mixing stirring region where the calcined gypsum and the additives are mixed and stirred in the inside thereof surrounded by the upper plate, the lower plate, and the side plates; a rotational plate which is disposed inside the housing and has a disc shape; a rotational driving shaft which penetrates the upper plate and the lower plate of the housing and is connected to the rotational plate; a calcined gypsum supply port which is disposed in the upper plate and supplies the calcined gypsum to the mixing stirring region; and an additive supply port which is disposed on one or both of the upper plate and the side plates and supplies the additives to the mixing and stirring region.
B28C 5/16 - Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials the stirrers having motion about a vertical or steeply inclined axis
B01F 27/115 - Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
An apparatus for inspecting plate-like bodies includes a distance calculation unit configured to calculate a distance between a light emitting unit and a side surface of the plate-like body, by using light emitted by the light emitting unit, and includes a determining unit configured to determine whether the side surface of the plate-like body has a defect, by using the light emitted by the light emitting unit, based on the calculated distance between the light emitting unit and the side surface of the plate-like body, upon occurrence of a condition under which a conveying unit varies a position of the light, on the side surface of the plate-like body, emitted by the light emitting unit.
G01N 21/892 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles characterised by the flaw, defect or object feature examined
16.
BUILDING FACE MATERIAL WITH PRINTED INDICATIONS AND METHOD FOR MANUFACTURING THE SAME
Provided is construction surface material with markings that has a first marking printed at a permissible spacing from an edge of a plane rectangle and markings printed in advance in columns at designated intervals even if cut at any location during a cutting step in a manufacturing process. The construction surface material 10 with markings has marking columns made by providing a plurality of character string groups in cycles, wherein a single character string group is formed by arranging a plurality of markings in a determined order at a set constant first spacing on the wide surface of the construction surface material, which has a rectangular shape in plan view, along at least one straight line parallel to a first side 11 or a second side 12 of the rectangle.
E04C 2/30 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
A construction surface material with a magnetic layer is provided that has a construction surface material, and a magnetic layer that covers at least a part of the surface of the construction surface material, the magnetic layer containing a magnetic material and an inorganic binder.
E04F 13/08 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
E04C 2/04 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement
E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
This inspection device for inspecting a plate-like object of inspection that is being conveyed comprises: a light source for irradiating, onto a lateral surface of an end part of the object to be inspected in the width direction, which is orthogonal to the conveyance direction, of the object to be inspected, linear light that follows the width direction of the object to be inspected; an imaging device for imaging the light irradiated from the light source onto the lateral surface of the end part in the width direction of the object to be inspected; an imaging device drive device for moving the imaging device; and an imaging device control unit for controlling the position of the imaging device. The imaging device control unit controls the position of the imaging device according to the position of the end part in the width direction of the object to be inspected.
G01N 21/892 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles characterised by the flaw, defect or object feature examined
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
An object of the invention is to reduce or restrict a flow rate of a thermal medium fluid flowing through a heat transfer tube which cannot effectively cool or heat the processed matter, thereby improving the energy efficiency or thermal efficiency, saving the electric power consumption, and so forth. A multitubular rotary heat exchanger (1) has a stationary shielding unit (20). The shielding unit is positioned in close proximity to a tube plate (8, 9) outside a heating or cooling region (D). A stationary surface (30) of the shielding unit is positioned in opposition to and in close proximity to an end opening (2a, 2b) of a heat transfer tube (2) moving in an upper zone (.alpha.) of the heating or cooling region, thereby transiently reducing or restricting the flow rate of the thermal medium fluid flowing through the heat transfer tube moving in the upper zone.
F28D 11/04 - Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller performed by a tube or a bundle of tubes
20.
PARTITION WALL STRUCTURE AND METHOD FOR CONSTRUCTING SAME
The purpose of the present invention is to improve sound-insulating performance of a wall body in middle and high frequency bands in a partition wall structure using a single-runner method. A partition wall (1) has a structure in which a wall end portion (1a) is butted against other building structure bodies (C, W, 1') and the wall end portion is exposed to a building space. An end pillar (10) of the wall end portion comprises first and second end-pillar members (11-16). The end-pillar members are separated from each other, and a gap (ß, ?) or an insulator (42) that interrupts propagation of solid vibration or insulates a propagation path of solid vibration is formed between the end-pillar members. Interior-face materials (5, 6) of a building space (R2) on one side are fixed to the first end-pillar members (11, 13, 15), and interior-face materials of a building space (R1) on the opposite side are fixed to the second end-pillar members (12, 14, 16).
Provided is a fireproof coated structure for providing fireproof coating to a penetration part (11) formed in a fireproof beam (20) of a wooden building, wherein a cylindrical fireproof coating material (12) covers the inner peripheral surface of the penetration part (11) so as to be attached to the penetration part (11). The cylindrical fireproof coating material (12) is formed when a plurality of gypsum board pieces (13a), which are cut off from a commercially available gypsum board (13) that has a thickness of 9.5-25.5 mm, are integrally joined to each other in a state of being laminated in the thickness direction. The cylindrical fireproof coating material (12) is inserted into the penetration part (11) so as to be attached thereto in a state where joint parts (15) of the gypsum board pieces (13a) adjacent to each other in the lamination direction are disposed at boundary parts (23) between a coating member (22) and structural members (21) of the fireproof beam (20) or at portions near the boundary parts (23).
Provided is a penetration part fireproof coating material (10) used when a fireproof coated penetration part (11) is provided to a fireproof beam (20) which is a fireproof structural member constituting a wooden building. The penetration part fireproof coating material is cylindrically formed when a plurality of gypsum board pieces (13a) formed from a gypsum board (13) are integrally joined to each other in a state of being laminated in the thickness direction. When a plurality of preferably annular gypsum board pieces (13a), which are cut off from the commercially available gypsum board 13 that has a thickness of 9.5-25.5 mm, are fixed to each other by use of a metal fastener such as a staple (14) preferably, the penetration part fireproof coating material (10) is cylindrically formed by the gypsum board pieces being integrally joined to each other in a state of being laminated in the thickness direction.
Provided is a plasterboard manufacturing method which comprises a forming step for forming a plate-shaped formed body including plaster slurry and cover base paper disposed to cover at least a portion of a surface of the plaster slurry, wherein, in a cross-section of the formed body, the cross-section being perpendicular to the longitudinal direction, the cover base paper completely covers the outer periphery of the plaster slurry and partially overlaps itself, and the distance between an end section of the formed body in the width direction and a step part produced by the overlap of the cover base paper itself is 15 mm or more.
B32B 13/08 - Layered products essentially comprising a water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such substances as the main or only constituent of a layer, next to another layer of a specific substance of paper or cardboard
B32B 37/14 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
E04B 9/04 - Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, sheets or the like
24.
GYPSUM-BASED INVESTMENT MATERIAL COMPOSITION FOR CASTING, AND METHOD FOR MANUFACTURING GYPSUM-BASED INVESTMENT MATERIAL COMPOSITION FOR CASTING
The present invention intends to provide a gypsum-based embedding material composition for casting, the composition being useful as a rapid-heating type gypsum-based embedding material making it possible to provide a product with which leaving time is made short, which has never been realized in conventional products, and also intends to provide a method for producing the same. A gypsum-based embedding material composition for casting, the composition being a gypsum-based powdery embedding material composition for casting to be used for a rapid-heating type embedding material, the gypsum-based powdery embedding material composition being such that a set product is put into a high-temperature furnace, the set product obtained by adding a malaxation liquid into the composition to perform malaxation and then setting a resultant mixture, wherein the gypsum-based embedding material composition for casting contains as main components calcined gypsum, quartz, and cristobalite, and contains at least one co-pulverized material selected from a co-pulverized material of calcined gypsum and quartz, a co-pulverized material of calcined gypsum and cristobalite, or a co-pulverized material of calcined gypsum, quartz, and cristobalite, and a powdery moisture-retaining component or a liquid moisture-retaining component having a low water content, the composition having an average particle diameter of 30 µm or less, and a method for producing the same.
B22C 1/08 - Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives for decreasing shrinkage of the mould, e.g. for investment casting
A61C 13/20 - Methods or devices for soldering, casting, moulding or melting
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
25.
SLURRY DELIVERY CONDUIT OF MIXER AND SLURRY DELIVERY METHOD
The purpose of the present invention is to prevent the occurrence of a flow rate difference or a specific gravity difference in gypsum slurry between gypsum slurry delivery ports, and to divert a slurry flow and sufficiently ensure a separation distance between the slurry delivery ports without forming a slurry accumulation element in a branch part. A slurry delivery conduit (10) comprises a straight conduit path (14), a branch part (15), and branch conduit paths (16). A conduit wall joining part (20) of the branch conduit paths forms a V-shaped countercurrent dividing element (22) in the branch part. Gypsum slurry in a kneading area (51) is introduced into the straight conduit path forming a straight flow path. The straight conduit path rectifies the flow of the gypsum slurry into an axial flow or a straight flow (S), and the axial flow or the straight flow is divided into branched flows (S1 and S2) by the countercurrent dividing element.
B28B 13/02 - Feeding the unshaped material to moulds or apparatus for producing shaped articles
B05B 1/14 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with strainers in or outside the outlet opening
Provided is a sampling device having: a push-up means for pushing a plate body piece upward above a conveyance path of the plate body piece from beneath the conveyance path, the plate body piece being conveyed by a conveyance means; and a retaining means for retaining the plate body piece pushed upward by the push-up means.
B28B 17/00 - SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER - Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
The invention provides an interior building material use for forming an interior wall and the like. The interior building material includes a plate-like base material, such as a gypsum board, to which a magnet does not attach inherently attach. The interior building material further comprises a plurality of sheet-like magnetic materials fixed to at least a portion of a surface or back surface of the plate-like base material. The plurality of sheet-like material materials are disposed in such a way as to have a portion where the adjacent magnetic materials are in contact with each other. The interior building material can form a wall face or the like for which magnetic fasteners and magnetic sheets can be used in place of fasteners such as screws, nails, or thumbtacks.
E04F 13/08 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
28.
GYPSUM-BASED BUILDING MATERIAL WITH MAGNETIC LAYER, MAGNETIC JOINT MATERIAL, METHOD FOR FABRICATING GYPSUM-BASED BUILDING MATERIAL WITH MAGNETIC LAYER
Provided is a gypsum building material having a magnetic layer, which comprises a gypsum building material and a magnetic layer covering at least a portion of the surface of the gypsum building material. The magnetic layer contains iron powder and a binder. The iron powder content per unit surface area is 0.3 kg/m2 or greater, and the density of the magnetic layer is 2.0 g/cm3 or greater.
E04C 2/04 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of asbestos cement
B32B 13/04 - Layered products essentially comprising a water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such substances as the main or only constituent of a layer, next to another layer of a specific substance
E04B 1/94 - Protection against other undesired influences or dangers against fire
E04F 13/072 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements
29.
CUTTING APPARATUS, APPARATUS FOR MANUFACTURING SHEET MATERIAL, AND APPARATUS FOR MANUFACTURING GYPSUM BUILDING MATERIAL
Provided is a cutting device comprising: a cutting means that is provided along a pathway over which a plate-shaped object to be cut is transported, said cutting means cutting the object to be cut; a downstream-side transport means that is provided further downstream in the transport pathway than the cutting means, said downstream-side transport means transporting the object to be cut; and a foreign-matter-adhesion-prevention means that is provided between the cutting means and the downstream-side transport means and that prevents foreign matter scattered from the cutting means from adhering to the downstream-side transport means.
B28B 11/14 - Apparatus or processes for treating or working the shaped articles for dividing shaped articles by cutting
B26D 1/40 - Cutting through work characterised by the nature or movement of the cutting member; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
B26D 7/18 - Means for removing cut-out material or waste
[Problem] With respect to a fluidized bed type apparatus and method for treating gypsum, the purpose of the invention is to enhance or improve fluidity of gypsum powder and promote the effects of treatment of gypsum such as reforming or homogenization of the gypsum powder. [Solution] This gypsum treatment apparatus (1) includes a reactor (2), a conditioned air supply port (6), a horizontal partition wall (5) that causes conditioned air flow (Af) to flow upward into a reaction area (a), and a plurality of fixed blades (10) that are arranged at angular intervals in the peripheral direction of the reaction area. A fluidized bed (M) of calcined gypsum (Gb) is formed inside the reactor. The fixed blades deflect conditioned air flow (Ag) flown upward into the reaction area radially outward and in the peripheral direction of the reaction area. The calcined gypsum (Gb) flows by saltation or moves by saltation inside the reactor due to the conditioned air flow.
C04B 11/036 - Devices therefor for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln
B01J 8/38 - Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation
INSPECTION METHOD, INSPECTION AND REPORTING METHOD, MANUFACTURING METHOD INCLUDING THE INSPECTION METHOD, INSPECTION APPARATUS, AND MANUFACTURING APPARATUS
This inspection method for inspecting a plate-like inspection object having a pattern, comprises: an image capture step for capturing an image of a surface of the inspection object; a digitization step for creating a digitized image by binarizing or ternarizing, with a determined threshold, gradation of the original image obtained in the image capture step; and a determination step for determining the inspection object by using the image created in the digitization step.
G01N 21/892 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles characterised by the flaw, defect or object feature examined
32.
POWDER DUSTINESS EVALUATION METHOD AND POWDER DUSTINESS EVALUATION DEVICE
The purpose of the present invention is to provide a method that enables more precise evaluation of the dustiness of a powder. Provided is a powder dustiness evaluation method in which a powder to be evaluated is dropped onto a liquid contained in a box, which causes the powder to scatter as dust within the box, and the concentration of dust in the air within the box is measured by a dust measuring device. Also provided is a powder dustiness evaluation device comprising a box in which a liquid is contained, and a dust measuring device that measures the concentration of dust in the air within the box when a powder to be evaluated is dropped onto the liquid contained in the box and scatters as dust.
Provided is a gypsum-based board manufacturing apparatus provided with: a mixer that prepares gypsum slurry; a foaming apparatus; and a pump that conveys foam produced by the foaming apparatus to the mixer, wherein the pump is a displacement type pump.
[Problem] To prevent with certainty generation of condensation water in an area of contact between calcined gypsum and moisture and along a conveying path of reformed calcined gypsum, for example, in a process of reforming calcined gypsum in which calcined gypsum is reformed using a water adding treatment. [Solution] Provided is a calcined gypsum treatment device that includes: a stirring-type cooling device (1) which is provided with a cooling region (D) that cools calcined gypsum (G); and a water-adding device (20) that adds water to the calcined gypsum. The water-adding device includes a wet gas supplying port (22) through which a wet gas (S) containing moisture or water vapor is directly introduced into the cooling region. The calcined gypsum is reformed by being introduced into the cooling region from a calcined gypsum introducing port (16) of the cooling device and subjected to a water adding treatment in the cooling region. The wet gas supplying port is disposed close to the calcined gypsum introducing port, and a jet or discharge flow of the wet gas contacts the calcined gypsum immediately after the calcined gypsum has been introduced to the cooling region from the calcined gypsum introducing port.
A gypsum panel includes a gypsum core containing a termiticide with poor water solubility, wherein the gypsum core has a first end region, a center region, and a second end region having an equal thickness and extending along a thickness direction from one surface side to another surface side, the termiticide is contained in each of the first end region, the center region, and the second end region, and a content of the termiticide in the center region is lower than a content of the termiticide in the first end region and in the second end region.
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
B28B 1/50 - Producing shaped articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
Provided is a gypsum composition for a dry-curing coating material capable of forming a coating film in which color unevenness is suppressed while being thin and smooth when made to be a gypsum-based coating material by adding water. This gypsum composition for a dry-curing coating material contains a hemihydrate gypsum with an average particle diameter of no more than 50 µm, calcium carbonate with an average particle diameter of no more than 50 µm, and a setting retarder, the calcium carbonate content being 10-400 parts by mass and the setting retarder content being at least 0.1 parts by mass per 100 parts by mass of the hemihydrate gypsum.
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
The present invention makes it possible for gypsum slurry to be uniformly and sufficiently kneaded in a kneading area of a scraper type mixer. This mixer has a circular housing (20) forming a kneading area (10a) in which gypsum slurry is to be kneaded, a rotating disc (32) arranged inside the housing and rotating in a prescribed rotating direction, a rotating drive shaft (30) integrally connected to the rotating disc, a plurality of scrapers (50) arranged in the kneading area, and a slurry discharging port (40) disposed in a circular ring wall (23) of the housing to supply the gypsum slurry in the kneading area onto a base paper (1) for a gypsum board. The opening of the slurry discharging port is divided into a plurality of narrow openings (48, 48'), thereby increasing the flow resistance of the gypsum slurry flowing out from the kneading area. An annular base (70) which rotates integrally with the rotating disc is arranged concentrically with the center of rotation (10b) of the rotating disc, in the kneading area, and inner ends of the scrapers are fixed to the annular base. The scrapers are bent or curved backward in the rotating direction of the rotating disc.
B28C 5/16 - Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials the stirrers having motion about a vertical or steeply inclined axis
[Problem] To improve the flowability of a material gypsum deposit layer in a furnace to thereby prevent the development of "unevenness" in calcined gypsum, while also reducing fuel consumption in a calcining furnace. [Solution] A gypsum calcining device is provided with: a gypsum calcining furnace (1, 3-7) having a furnace inner-wall surface that is circular or annular in plan; and a combustion pipe (2) disposed at the center of a furnace body, wherein material gypsum (M) in the furnace is calcined or dried by a high-temperature gas jet flow (Hg) ejected from a lower part of the combustion pipe. The calcining furnace includes a fixed-blade or movable-blade type auxiliary device for urging the material gypsum in the vicinity of the furnace inner-wall surface in a circumferential direction of the calcining furnace, or assisting the motion in the circumferential direction of the material gypsum in the vicinity of the furnace inner-wall surface. The auxiliary device includes a plurality of fixed blades (10) arranged at angular intervals in the circumferential direction in a lower-end outer peripheral area of the combustion pipe, or an agitator (30) penetrating through a conical surface or an inner peripheral surface constituted by the furnace inner-wall surface.
F26B 3/08 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
F26B 17/10 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle
F26B 23/02 - Heating arrangements using combustion heating
F27B 15/02 - Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion - Details, accessories, or equipment peculiar to furnaces of these types
F27D 3/00 - Charging; Discharging; Manipulation of charge
39.
GYPSUM FERTILIZER FOR BLUEBERRIES AND METHOD FOR SUPPRESSING BLUEBERRY ABSCISSION
The purpose of the present invention is to provide a gypsum fertilizer for blueberries and a method for suppressing blueberry abscission that can suppress abscission of blueberry fruits without adversely affecting the growth of the blueberry fruits, and not only increases the crop yield but also eliminates the need for frequently collecting fallen fruits, thus yielding a major practical effect. The purpose is achieved by a gypsum fertilizer for blueberries containing gypsum having a BSA specific surface area of 15000 cm2/g or less as a main component, and a method for suppressing blueberry abscission using the gypsum fertilizer.
Provided I s a gypsum cured body which is obtained by curing a gypsum slurry obtained by mixing and kneading calcined gypsum, calcium hydrogen phosphate dihydrate, water, and foam, and which has a specific gravity of 0.3 to 0.8.
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
C04B 22/16 - Acids or salts thereof containing phosphorus in the anion, e.g. phosphates
41.
GYPSUM SLURRY, HARDENED GYPSUM, GYPSUM BUILDING MATERIAL, GYPSUM BOARD, METHOD OF PRODUCING GYPSUM SLURRY, METHOD OF PRODUCING HARDENED GYPSUM, METHOD OF PRODUCING GYPSUM BUILDING MATERIAL, AND METHOD OF PRODUCING GYPSUM BOARD
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
C04B 24/38 - Polysaccharides or derivatives thereof
C04B 24/42 - Compounds having one or more carbon-to-silicon linkages
42.
INSOLUBILIZING MATERIAL FOR SPECIFIC HAZARDOUS SUBSTANCE AND METHOD FOR INSOLUBILIZING SPECIFIC HAZARDOUS SUBSTANCE WITH SAME
The present invention intends to provide a practically valuable insolubilizing material for a designated hazardous substance (a heavy metal or the like) and an insolubilization method using the insolubilizing material for a designated hazardous substance, the insolubilizing material and method: making it possible to conduct treatment in a neutral region from start to finish to effectively insolubilize and immobilize a heavy metal or the like, which is contained in soil and the vicinity of the surface of the soil and which has adverse effects on health, by adding the insolubilizing material to the soil to mix with the soil, or spraying the insolubilizing material on the soil; and making the treated matter reusable, environmentally friendly, and neutral without fail . In order to achieve the purpose, the present invention provides an insolubilizing material for a designated hazardous substance, making it possible to conduct treatment to soil so that the soil does not reach a strongly basic region of a pH of 11 or more from start to finish, the insolubilizing material containing: a water-soluble aluminum compound not being strongly basic and not being amorphous; and at least one concomitant component selected from the group consisting of calcium compounds, magnesium compounds, and phosphate compounds each not being strongly basic.
The purpose of the present invention is to promptly and reliably detect, through a simple arrangement, sizing defects in the face paper and the back paper of gypsum board in a gypsum board production process. A light-emitting part (51, 52) is situated at one side of a continuous laminate (W). The light-emitting part (51, 52) illuminates the edge of the continuous laminate (W) with laser light (ß) extending in a direction intersecting the direction of transport of a casting belt (40). A light receiving part (53, 54) for receiving the laser light (ß) of the light-emitting part (51, 52) is situated in opposition to the light-emitting part (51, 52), at the opposite side of the continuous laminate (W). The laser light (ß) passes at least partially through the upper side of the upper face of the continuous laminate (W), and is partially blocked by a protuberance at the edge of the continuous laminate (W). On the basis of a decline in the quantity of received light by a predetermined value or by a predetermined percentage or more, a control device (70) determines that a sizing defect has occurred, and creates a display or alert regarding the occurrence of the sizing defect, by a display means or an alerting means (71, 72).
The present invention provides: a debris processing composition for use in separating earth and/or sand from debris to which the earth and/or sand have stuck; and a debris processing method. This debris processing composition contains 0.1 to 10 parts by mass of a polymer flocculant relative to 100 parts by mass of gypsum, wherein: the BSA specific surface area of the gypsum is 15000cm2/g or less; and the polymer flocculant takes the form of a powder that comprises at least 95% of particles having diameters of 200µm or less. This debris processing method comprises: a processing step for adding 10 to 100kg of gypsum and 0.01 to 10kg of a polymer flocculant to 1 m3 of debris to which earth and/or sand have stuck, and kneading the obtained mixture; and a separation step for separating the kneaded mixture into the debris and the earth and/or sand. The present invention makes it possible to separate earth and/or sand from debris to which the earth and/or sand have stuck, easily, simply and efficiently without exerting a bad influence on the environment, such separation being a prerequisite for the disposal of an enormous amount of debris produced through the mingling of the objects destroyed and torn by strong force of tsunami or the like with the earth and/or sand carried by tsunami or the like.
As a lower forming plate 8, a forming plate having: a lower plate main body 10 constituted from an electrically conductive material; and a lower embedded electrode 12 embedded in the lower plate main body 10, the lower embedded electrode 12 being electrically insulated from the lower plate main body 10 by an insulator 14 and being embedded so as for a portion thereof to be exposed on the surface of the lower plate main body 10 making contact with a lower lining paper sheet 16 is used.
A mixing and stirring device for gypsum slurry has a circular casing forming a mixing area, a rotary disc positioned in the casing, and a tubular passage for feeding the slurry onto the sheet of paper for gypsum board liner. A chute has a fluid passage portion with its cross section being non-axisymmetric with respect to a center axis of the tubular passage, or a fluid passage portion varying a position of the center axis of the tubular passage by means of change or lateralization of the cross section of fluid passage. An axisymmetric vortex flow generated in the tubular passage as an intratubular swirling flow is broken down at the fluid passage portion, and therefore, its swirling motion, which may possibly result in the ununiformity or instability of the density distribution, substantially disappears in the slurry spouting onto the sheet of paper.
B28C 5/16 - Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials the stirrers having motion about a vertical or steeply inclined axis
A method of detecting an air gap in a gypsum-based building board includes cooling a surface of a gypsum-based building board that has generated heat because of a hydration reaction of calcined gypsum by applying a cooling medium to the surface, and detecting a temperature distribution of 'the surface of the gypsum-based building board after completion of the cooling.
G01J 5/48 - Thermography; Techniques using wholly visual means
48.
GYPSUM COMPOSITION, GYPSUM SLURRY, GYPSUM HARDENED BODY, GYPSUM-BASED BUILDING MATERIAL, GYPSUM BOARD, AND MANUFACTURING METHOD FOR A GYPSUM-BASED BUILDING MATERIAL
[Problems] An object is to provide a gypsum composition, a gypsum slurry, a gypsum hardened body, a gypsum-based building material, a gypsum board, and a manufacturing method for a gypsum-based building material so that it is possible to obtain a gypsum hardened body with a high strength without drastically increasing an amount of water when a gypsum slurry is provided. [Solving means] A gypsum composition, a gypsum slurry, a gypsum hardened body, a gypsum-based building material, a gypsum board, and a manufacturing method for a gypsum-based building material are provided so that a calcined gypsum and a starch urea phosphate are included.
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
B28B 1/50 - Producing shaped articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
C04B 24/38 - Polysaccharides or derivatives thereof
49.
INSOLUBILIZING AGENT FOR SPECIFIC TOXIC SUBSTANCES, METHOD FOR INSOLUBILIZING SPECIFIC TOXIC SUBSTANCES USING SAME, AND SOIL IMPROVING METHOD
Provided is a practically valuable and economically excellent insolubilizing material for a specific toxic substance: that is useful for insolubilizing treatment for a heavymetal or the like conducted by applying the insolubilizing material for a specific toxic substance to soil or on the surface of the soil; that is capable of effectively insolubilizing and immobilizing the heavy metal or the like; that is capable of making treated matter neutral so as to be reusable and environment-friendly; and moreover that is capable of imparting strength to the treated matter as necessary; and with which the heavy metal or the like is not re-eluted even when the treated matter is exposed to an environment under a neutral condition or an acidic condition. An insolubilizing material for a specific toxic substance to be used so that soil does not reach a strongly alkaline region of a pH of 11 or more, wherein the insolubilizing material for a specific toxic substance comprises an amorphous aluminum compound or a derivative thereof as amain component, or an insolubilizing material for a specific toxic substance to be used so that soil containing a heavy metal or the like does not reach a strongly alkaline region of a pH of 11 or more, the insolubilizing material for a specific toxic substance functioning also as a solidifying material, wherein the insolubilizing material for a specific toxic substance comprises gypsum obtained by adding and mixing, to the gypsum, the amorphous aluminum compound and the derivative thereof in a range of 0.5 to 60 mass parts relative to 100 mass parts of the gypsum, and a method for improving soil using the insolubilizing material for a specific toxic substance.
C02F 11/00 - Treatment of sludge; Devices therefor
A62D 3/33 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemically fixing the harmful substance, e.g. by chelation or complexation
B09C 1/02 - Extraction using liquids, e.g. washing, leaching
B09C 1/08 - Reclamation of contaminated soil chemically
C04B 18/30 - Mixed waste; Waste of undefined composition, e.g. municipal waste
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
[Problem] To provide a gypsum dispersant and a gypsum additive that have an excellent improvement effect on the fluidity of a gypsum slurry even if raw gypsums of varying qualities are used, and that do not delay curing of the gypsum slurry. [Solution] This gypsum dispersant is characterized by containing: (A) a polycarboxylic acid polymer; and (B) a polymer obtained by reacting alkylene diamines and/or monoamines with an epihalohydrin as essential components.
C04B 24/28 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
C08L 55/00 - Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups
Labor saving and automatization of cleaning work of a conveyance face for articles or materials are intended to reliably and quickly execute the cleaning work. A cleaning apparatus has a cleaning implement (10) located on the upper side of a conveyance element (R). The cleaning implement includes a cleaning face (11) to be in contact with a conveyance face (S). The cleaning apparatus also has a traction device (6,7) which applies a tractive force (T) to the cleaning implement, in a direction (E) opposite to a conveyance direction (D) of a conveyance passage. The cleaning implement has a weight (P) for keeping the cleaning face in contact with the conveyance element in operation of the conveyor device, and cleans the conveyance face by means of contact and separation of the cleaning face and the conveyance face, and relative displacement therebetween (V1, V2, V3).
Disclosed is a process for the continuous modification of dihydrate gypsum. The process includes a hemihydration step of calcining the dihydrate gypsum as a raw material into hemihydrate gypsum and a recrystallization step of hydrating and recrystallizing the hemihydrate gypsum in an aqueous slurry to convert the hemihydrate gypsum into modified dihydrate gypsum of a crystalline form different from the dihydrate gypsum as the raw material. In the recrystallization step, the aqueous slurry in a recrystallization reaction tank is maintained at a constant temperature under stirring such that the aqueous slurry becomes uniform, and a feed rate of the hemihydrate gypsum to the recrystallization reaction tank and a discharge rate of the recrystallized and modified dihydrate gypsum from the recrystallization reaction tank are controlled such that the feed rate and the discharge rate become substantially equal to each other, whereby the feeding of the hemihydrate gypsum and the discharging of the recrystallized and modified dihydrate gypsum are conducted continuously or intermittently. According to the process, dihydrate gypsum as a starting raw material can be converted into high-purity, modified dihydrate gypsum of large crystals by recrystallizing the starting dihydrate gypsum after it is once calcined into hemihydrate gypsum although such modified dihydrate gypsum is not available in general.
A gypsum board is installed whose anti-mold property lasts for a long period of time even in the case of using the gypsum board in a location where condensation occurs or which is likely to be splashed with water, such as the inside of an elevator shaft. In the gypsum board, a gypsum core contains a poorly water-soluble anti-mold agent and a waterproofing agent, and gypsum board paper containing a poorly water--soluble anti-mold agent is further used.
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
E04B 1/92 - Protection against other undesired influences or dangers
E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
54.
APPARATUS AND METHOD FOR MANUFACTURING GYPSUM BOARD
A gypsum board forming device (10) constituting a gypsum board manufacturing apparatus forms a laminate of a lower sheet (1), an upper sheet (2) and a gypsum slurry (6) passing through a forming gate (40) into a plate shape by upper and lower plates (20, 30). The upper plate (20) is constituted of a fixed base plate (21) and a movable plate (22). The movable plate comes into face contact with the upper sheet of the laminate. Lifting drive devices (50) are supported on the fixed base plate. The lifting drive devices locally exert a vertical load (P) on the movable plate to locally deform the movable plate. A gate dimension (T) locally changes due to the displacement of the movable plate relative to the fixed base plate.
B28B 5/04 - Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping in moulds moved in succession past one or more shaping stations
B28B 11/08 - Apparatus or processes for treating or working the shaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
The invention provides a whetstone type of scoring device for production of gypsum boards which can accurately and stably form a groove of a constant depth on a sheet of paper for gypsum board liner, and which can prevent wear of a rotary blade and a backing block. The scoring device (11) for a gypsum board production machine (10) has the rotary blade (24) and the backing block (30). The sheet (3) travels under tension over the block (30), which abuts against the lower surface of the sheet. The block has an opening (32) immediately under the blade. The lower surface of the sheet is released downward by the opening. The sheet is ground by a blade edge (24a) while being slightly bent downward within a range of the opening (within an intimate contact area of an angle .beta.).
B26D 3/08 - Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
B26D 1/20 - Cutting through work characterised by the nature or movement of the cutting member; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a fixed member
The present invention provides a method for manufacturing a calcined gypsum wherein the mixing water amount is reduced and the setting time does not increase. As a raw gypsum is compounded with a carboxylic acid-type material and calcined, a calcined gypsum can be manufactured wherein the mixing water amount is small and the setting time does not increase. Furthermore, a regular gypsum board can be manufactured without reducing the productivity of the gypsum board even if a large quantity of recycled gypsum causing increase of the mixing water amount is used as a raw gypsum, because the mixing water amount is small and the setting time does not increase for the calcined gypsum manufactured as described above.
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
57.
COMPOSITION FOR BUILDING MATERIAL, AND GYPSUM BOARD AND CONSTRUCTION METHOD USING THEM AND WALL AND THE LIKE
Provided is a building material with a higher specific gravity and/or radioactive-ray-shielding function while maintaining a workability equivalent to that of a conventional gypsum board. It relates to a gypsum-based building material manufactured by adding water to a composition in which a base material is a combination of a hydraulic gypsum and one kind or two or more kinds of dry-hardening calcium carbonate or calcium hydroxide or synthetic resin emulsions and an inorganic filler with a high specific gravity is compounded to it so that reaction and setting or drying and setting are conducted, wherein the composition is characterized by comprising 100 parts by weight of at least one kind or two or more kinds of base materials selected from the group consisting of calcium sulfate, calcium carbonate, calcium hydroxide and organic synthetic resin emulsions, and 50 - 3,000 parts by weight of at least one kind or two or more kinds of inorganic fillers whose true specific gravity is 3.5 - 6.0 which are selected from the group consisting of barium chloride, zinc oxide, aluminum oxide, titanium oxide, barium oxide, strontium carbonate, barium carbonate, and barium sulfate.
C04B 28/14 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
E04B 1/82 - Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
E04B 1/92 - Protection against other undesired influences or dangers
E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
G21F 1/04 - Concretes; Other hydraulic hardening materials
G21F 1/10 - Organic substances; Dispersions in organic carriers
Perforations of a board for building material are formed by a number of recesses (13), or a number of recesses (13) and through-holes (12). A bottom face (16) of the recess forms a face for screwing or driving the fixing element (70) thereto. A color of the bottom face is set to have a brightness of color decreased in comparison with a color of a surface (18) of the board. A substrate of the board is a gypsum board and the bottom face of the recess is formed by a liner paper for gypsum board. According to such a board, a region for screwing or driving the fixing element thereto can be ensured without impairing regularity, uniformity or architectural design of the perforations, and putty finishing or the like for an exposed part of the fixing element can be omitted.
E04C 2/26 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups , , , or of materials covered by one of these groups with a material not specified in one of these groups
E04B 9/04 - Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, sheets or the like
E04F 13/08 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
E04F 13/14 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of glass
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