127 results about "Fibre cement" patented technology

The invention discloses a method and device for testing moisture migration in the frost heaving and thaw collapse process of fiber cement soil based on low-field nuclear magnetic resonance, and relates to the field of cement soil testing engineering.The method comprises the steps that T2 spectrums of the whole freezing process and the whole thawing process of a fiber cement soil sample are obtained; inverting a three-dimensional moisture distribution diagram of the whole freezing process and the whole melting process of the fiber cement soil sample according to the T2 spectrum; and determining moisture migration conditions of the whole freezing process and the whole melting process of the fiber cement soil sample according to the three-dimensional moisture distribution diagrams of the whole freezing process and the whole melting process of the fiber cement soil sample. According to the method, T2 spectrum data is mapped to a three-dimensional space position on the basis of a nuclear magnetic resonance (NMR) signal gradient positioning technology, and a pixel-level three-dimensional moisture distribution diagram of a fiber cement soil sample is obtained by performing data inversion on a T2 spectrum, so that pixel-level moisture migration conditions in the freezing process and the melting process of the fiber cement soil are visualized.

The invention discloses a coal gangue-based ceramic tile adhesive for thin-layer paving and a preparation method of the coal gangue-based ceramic tile adhesive, and belongs to the technical field of adhesives. Comprising the following raw materials: 450-550 parts of composite coal gangue powder, 250-300 parts of ordinary Portland cement, 15-20 parts of copolymer rubber powder, 1-2 parts of hydroxypropyl methyl cellulose, 0.2-0.5 part of starch ether, 5-8 parts of sodium formate, 8-10 parts of reinforced fibers, 10-15 parts of an early strength agent and 180-200 parts of water. Coal gangue powder is subjected to decarburization treatment, reaction activity is improved, the coal gangue powder is adsorbed in filling pores of phase change microcapsules to reduce the water absorption rate and enhance the mechanical property and durability, then a silane coupling agent KH570 solution is used for modification, the water resistance is optimized, and tetrapod-like zinc oxide enhanced fibers, cement, rubber powder and the like are matched to achieve the synergistic effect, so that the waterproof performance is improved. The coal gangue-based ceramic tile adhesive for thin-layer paving is obtained, and the environmental protection and performance requirements are both considered.

According to the beam-column stainless steel joint suitable for the ocean island reef environment, a stainless steel annular partition plate is arranged in a stainless steel sleeve, and a plurality of structural stainless steel bars used for being connected with prefabricated columns are welded to the upper side and the lower side of the stainless steel annular partition plate; a stainless steel beam support and an I-shaped profile which are connected with the precast beam are arranged on the outer side of the sleeve and are fixed through a stainless steel bolt anchor connecting piece. The prefabricated beams and the prefabricated columns are made of stainless steel, fiber reinforced composite material profiles and seawater and sea sand fiber cement-based composite materials. Stainless steel sleeves are used for restraining expansion of the prefabricated columns, stainless steel ribs are constructed to enhance the bending-shear resistance, I-shaped profiles improve the shear resistance of the joints, and stress optimization is achieved; the stainless steel material and the full-steel-free design effectively resist seawater corrosion; the beam support has a template function, construction is simplified through bolt-anchor connection, and the beam support is suitable for rapid assembly in the ocean island reef environment. The method has the advantages of high durability, strong bearing capacity and convenience in construction, and the maintenance cost in the marine environment is obviously reduced.

This utility model discloses a crack-resistant and reinforced autoclaved aerated concrete (AAC) wall panel, comprising an AAC layer composed of a mixture of fiber and concrete. The AAC layer contains three layers of mesh fiber cement reinforcement distributed from top to bottom. A first concave arc-shaped fiber cement reinforcement is positioned between the upper and middle layers, and a second concave arc-shaped fiber cement reinforcement is positioned between the middle and lower layers. The first and second arc-shaped fiber cement reinforcements are symmetrically distributed about the middle layer of mesh fiber cement reinforcement. This utility model improves the overall strength and compressive strength of the wall panel, reduces the risk of cracking, and extends the service life of the wall panel.

The invention discloses a basalt fiber cement-based composite gradient functional material forming device and method, and belongs to the technical field of building material additive manufacturing. The device comprises a main material extrusion bin, at least two sub-material stirring bins, a driving device, a radar level gage and a control system. The functional slurry is stirred and then injected into the sub-material stirring bins for temporary storage, and the top of each sub-material stirring bin is provided with a radar level gage for monitoring the uniformity and rheological property of the slurry in real time. And the control system independently starts each bin blocking device according to a preset gradient model sequence, so that slurry with different functions sequentially flows into the main material extrusion bin, the slurry is extruded and printed layer by layer after being subjected to secondary homogenization and re-checking, the main material bin is emptied after each layer is printed, and the multifunctional gradient composite component with the functions of bearing, sound absorption, heat preservation, decoration and the like is formed. The fiber volume mixing amount is distributed in a stepped mode, continuous transition of performance is achieved, and interface stress is relieved. The method is suitable for key infrastructure construction in severe environments such as open sea islands and reefs.

The invention discloses an inorganic permeable crystallization additive for concrete and a use method, and belongs to the technical field of concrete building materials, the inorganic permeable crystallization additive for concrete comprises quartz sand, a composite silicon-based material, a sodium methyl silicate crystallization precipitator, calcium hydroxide, a water reducing agent, an expanding agent, tensile fibers, cement and a fly ash mixture; the composite silicon-based material is prepared by compounding nano silicon dioxide, a POSS (Polyhedral Oligomeric Silsesquioxane) compound and a titanate coupling agent; according to the invention, by adding the tensile fibers, the concrete is prevented from plastically shrinking to generate primary micro-cracks after pouring, the fibers form three-dimensional network support in the concrete to resist shrinkage stress, and the fibers can bridge the micro-cracks, inhibit the expansion of the micro-cracks and postpone the appearance of visible cracks, so that the toughness, bending strength, fatigue resistance and impact resistance of the concrete are remarkably improved; by effectively reducing and refining cracks, a main channel for water permeation is cut off, so that the impermeability of the concrete is indirectly improved.

The utility model relates to a glass fiber cement board which comprises a glass fiber cement board body embedded with a metal plate, the metal plate is composed of a plurality of horizontal straight boards and corrugated boards, and the horizontal straight boards are provided with a plurality of vertical through holes distributed in the length direction of the horizontal straight boards. The corrugated plate is provided with a plurality of transverse through holes which are distributed in the length direction of the corrugated plate and transversely penetrate through the side wall of the corrugated plate. According to the glass fiber cement board, the effect of enhancing the horizontal impact resistance of the glass fiber cement board body is achieved by utilizing the corrugated shape of the corrugated board, and the distance H from the top edge to the bottom edge of the corrugated board is larger than the thickness of the horizontal straight board, so that the metal board can be used for producing the thick glass fiber cement board body; by arranging the vertical through holes and the transverse through holes, fusion connection in the transverse direction and the vertical direction can be provided for the upper cement layer and the lower cement layer of the glass fiber cement board body, so that the internal structural strength is higher, and the situations of fault and falling apart of the glass fiber cement board body are avoided.

The utility model discloses an antiknock board with a veneer and a veneer rolling mechanism, the antiknock board with the veneer comprises a fiber cement core board, an upper surface board, a lower surface board and a veneer, and the veneer is adhered on the outer surface of the upper surface board through hot melt adhesive. According to the anti-knock plate with the veneer, on-site independent construction of the outer veneer is omitted, and the construction period is shortened. The veneer rolling mechanism disclosed by the utility model is used for processing the veneer in the anti-explosion plate with the veneer.

The utility model discloses a composite cement precast slab, which relates to the technical field of cement precast slabs, and comprises a fiber cement layer, and foaming cement layers are arranged on the upper side and the lower side of the fiber cement layer; the fiber cement layer and the foaming cement layer are arranged in parallel, the fiber cement layer and the foaming cement layer are arranged in parallel, the two frameworks are arranged on the two sides of the fiber cement layer respectively, the frameworks are embedded in the foaming cement layer, each framework comprises a plurality of first supporting reinforcing parts and a plurality of second supporting reinforcing parts, and the first supporting reinforcing parts and the second supporting reinforcing parts are arranged in a perpendicularly crossed mode. The framework is composed of the first supporting reinforcing pieces and the second supporting reinforcing pieces, the first supporting reinforcing pieces and the second supporting reinforcing pieces are perpendicularly arranged in the crossed mode, meanwhile, the second reinforcing net is embedded in the foaming cement layer, and the framework is matched with the second reinforcing net, so that the structural strength of the foaming cement layer is effectively improved; meanwhile, the stability and the anti-cracking effect of the foaming cement layer are enhanced.

A cladding system configured to be installed on a building substrate includes a plurality of fiber cement cladding elements and at least one trim element. The plurality of fiber cement cladding elements includes at least a first and second cladding element, each having a front face with a textured pattern, a rear face, first and second mating edges configured to allow mating between the first and second cladding elements, and a plurality of intermediate grooves recessed from the front face. The at least one trim element includes one or more channels configured to receive a portion of at least one of the first and second cladding elements. Each of the plurality of grooves includes a first curved surface, a second curved surface, a third curved surface, a fourth curved surface, and a planar surface positioned between the second and fourth curved surfaces and substantially parallel to the front face.

The application discloses a kind of panel making device of fiber composite wallboard, it is related to wallboard making technical field, including silica sand, wood pulp, mixing, sieving, water separation, pressing, cutting, hardening, inspection, paint spraying, realize the fine control of whole process, effectively improve the quality of fiber composite wallboard, especially in fiber cement wallboard steam curing process is carried out to steam sufficient control, and further improve the uniformity of wallboard maintenance, strengthen the chemical reaction effect between fiber cement wallboard raw materials, and then improve the panel making quality of fiber composite wallboard.

The present invention relates to fiber cement decking products, which comprise at least one or more pigments and which are at least partly coloured in the mass. The present invention further relates to methods for the production of such fiber cement decking products as well as uses of such fiber cement decking products in the building industry. The present invention further relates to fiber cement formulations and fiber cement materials, which are suitable for the production of fiber cement products for decking applications.

The utility model provides an integrated fiber composite thermal insulation wallboard, which belongs to the technical field of building wallboards and comprises a thermal insulation layer, a metal frame and two fiber cement boards, the two fiber cement boards are respectively arranged on the upper surface and the lower surface of the metal frame to form a sandwich structure, and the thermal insulation layer is arranged on the inner side of the metal frame. The side length of the fiber cement board is larger than that of the metal frame, the center of the fiber cement board and the center of the metal frame are overlapped, and the edge of the fiber cement board and the edge of the metal frame form a sandwich type rabbet type clamping groove. The square metal frame is arranged, the square metal frame and the fiber cement board are integrally formed, when the fiber cement board and the metal frame are connected, connection is conducted in the mode that the metal frame is welded to the square metal frame, and the sealing performance between the metal frame and the fiber cement board is improved; moisture in air is prevented from entering the thermal insulation layer in the metal frame, a fireproof thermal insulation material in the thermal insulation layer is prevented from absorbing moisture, and the thermal insulation performance of the thermal insulation layer is guaranteed.

The application discloses a cantilever type expansion joint cover plate, which comprises a web, the back of the web is provided with an I-shaped connecting piece for connecting a wall body, the I-shaped connecting piece is connected with a finished expansion joint cover plate through self-tapping screws, and the surface of the web is provided with a fiber cement pressure plate, the cantilever type thermal insulation integrated plate expansion joint cover plate is invented through local improvement, the deformation joint position thermal insulation plate deformation range along with the main body structure is increased under the condition of ensuring the uniform visual effect of the outer facade thermal insulation integrated plate decoration surface, and the probability of vertical glue joint cracking after gluing is reduced.

The invention discloses an extrusion-molded carbon mineralized fiber cement board and a preparation method thereof, and the preparation method comprises the following steps: dispersing fibers, a plasticizer, a lubricant and a dispersant in water to obtain a fiber suspension; adding powder containing the calcium silicate ore phase into the fiber suspension, and kneading into plastic pug; aging the plastic pug, performing vacuum pugging, and performing vacuum extrusion molding to obtain a fiber cement board blank; and drying and pre-curing the fiber cement board blank, and then carrying out CO2 curing to obtain the carbon mineralized fiber cement board, the raw material formula is simple, the powder with high carbonization activity and low hydration activity is adopted as a gelling component, so that the plasticity of the pug is stable, fibers are uniformly dispersed, and the production efficiency and the product performance of the fiber cement board prepared by an extrusion molding process are remarkably improved by combining normal-temperature and normal-pressure CO2 curing.

The present invention relates to a method for construction of a building unit characterized by the use of fiber cement-plywood composite boards and laminated veneer lumber as parts, and the use of construction adhesive to form and fasten the said parts. The invention also relates to the building units, such as a house, built according to the said method. With the use of only adhesive for fastening the parts of the house, the construction becomes simple and cost- effective. The load-bearing capacity of the structure is superior considering that it is made out of light materials. The 16ft x 16ft layout is based on the structural integrity of the material, the economy of space, decency, security, and comfort at a very affordable price.

A shutter mounting bracket device is provided. The device is comprised of a secure and weather-resistant method for installing outdoor shutters without damaging siding. The device comprises a bracket with a flat mounting portion that anchors to the sheathing beneath the siding, a curved attachment portion that extends through the siding joint, a fastening screw for stability, a threaded shutter fastener for securing the shutter, and a protective grommet to prevent moisture infiltration. The bracket is constructed from corrosion-resistant materials such as galvanized steel or aluminum, while the grommet is made from neoprene or silicone for durability. The design eliminates the need to drill into siding for shutter installation, making it suitable for vinyl, aluminum, or fiber cement siding, where direct drilling could cause long-term damage.

The invention relates to the technical field of formwork construction devices, in particular to a non-dismantling formwork construction device and process for a constructional column. According to the technical scheme, the mounting structure comprises a steel framework, a fiber cement board fixedly mounted on the steel framework and a mounting device for mounting the fiber cement board, and further comprises a plurality of connecting blocks which are fixedly mounted on the steel framework and provided with threaded holes, a plurality of kidney-shaped holes corresponding to the threaded holes are formed in the fiber cement board, and the mounting device comprises a base. According to the device, a fiber cement board can freely move in three directions in a three-dimensional space, hole positions in the fiber cement board can be conveniently adjusted, after the fiber cement board is adjusted, the fiber cement board can be fixed, the fiber cement board can be prevented from shifting when bolts are installed, and the installation efficiency of the fiber cement board is improved. The fiber cement board can be conveniently and finely adjusted, and the difficulty during screw mounting is greatly reduced.

The utility model relates to the technical field of fiber cement flat plates, in particular to a novel fiber cement flat plate connecting structure which comprises two first connecting assemblies, the left end and the right end of each first connecting assembly are each fixedly connected with two supporting screw rods, and the two supporting screw rods are fixedly connected with the left end and the right end of each first connecting assembly. The left ends and the right ends of the two first connecting assemblies are each sleeved with a cement flat plate structure, the ends, not in contact with the first connecting assemblies, of the two transverse cement flat plate structures are each sleeved with a second connecting assembly, and the outer surfaces of the multiple supporting screws are each sleeved with a nut. The opposite ends of the two transverse second connecting assemblies are fixedly connected with two supporting blocks, and the front ends of the two adjacent supporting blocks jointly penetrate through a connecting screw in a penetrating mode. The first connecting assembly comprises a first supporting plate. According to the novel fiber cement flat plate connecting structure, through the arrangement of the first connecting assembly and the second connecting assembly, a plurality of fiber cement flat plates can be connected together.

The method and installation capable of obtaining a cementitious powder having reduced fiber concentrations. The method comprises providing millimetre-sized granules originating from waste fiber cement material. The granules are supplied to a roller mill (10) comprising a rotating horizontal grinding track (13) and one or more rollers (12) configured to rotate about stationary rotation axes, wherein the granules are ground between the grinding track (13) and a lateral surface of the rotors (12), and reduced to agglomerates comprising micrometre-sized particles. Separation of these particles from the fibers occurs after drying in the milling chamber of the apparatus during an upward air flow. Said smaller-sized particles together with (light-weight) fibers are separated from heavier particles in an air classifier (14). Following this, the smaller-sized particles are separated from the majority of the fibers in a sieve (20).

A fire-resistant panel comprising a frame surrounding a high density thermally insulating material 8 such as rock wool, wherein the frame has two opposing panels 10 with at least one being fibre cemen

The present application relates to a kind of inhibiting carbon mineralization fiber cement board deformation curing method and system, the curing method includes, according to the slab thickness, it is divided into outer layer, limited middle layer and inner layer from outer surface to inner;When there is no middle layer, after first carbonation curing to slab, to the overall slab of water wetting and drying again, so that the water content of outer layer meets the standard, to the final slab carbonation curing;When there is middle layer, after first carbonation curing to slab, to the overall slab of innermost middle layer wetting and drying again, so that the water content of innermost middle layer to outer layer meets the standard, subsequently after the slab of processing again carbonation curing, so repeat, according to the number of middle layer, from inside to outside in turn carbonation curing, finally to the outer layer of slab wetting and drying again, so that the water content of outer layer meets the standard, to the final slab carbonation curing.The present application can fundamentally eliminate the main stress source leading to the deformation of board, can significantly reduce the amount of warping deformation of board.

A method in which a stream (5) of dry cementitious powder from a dry powder feeder (2) passes through a dry cementitious powder inlet conduit (5a) to feed a first feed section (20) of a fiber-slurry mixer (32). An aqueous medium stream (7) passes through at least one aqueous medium stream conduit (7a) to feed a first mixing section (22) of the fiber-slurry mixer (32). A stream (34) of reinforcing fibers passes from a fiber feeder (33) through a reinforcing fibers stream conduit (34a) to feed a second mixing section (24) of the fiber-slurry mixer (32). The stream (5) of dry cementitious powder, aqueous medium stream (7), and stream (34) of reinforcing fibers combine in the fiber-slurry mixer (32) to make a stream of fiber-cement mixture (36) which discharges through a discharge conduit (36a) at a downstream end of the mixer (32).

The utility model relates to calcium silicate board production, in particular to a base plate device for fiber cement flat calcium silicate board production and maintenance, which comprises a guide post, a movable block is connected onto the guide post, one side of the movable block is connected with a fixed block, and a clamping mechanism is arranged in the fixed block and can be used for fixing a base plate; the clamping mechanism comprises a positioning block connected into the fixed block, a moving block is connected into the positioning block, a positioning rod is connected to one side of the moving block, and a heart-shaped sliding groove is formed in the surface of the moving block; a partition plate is placed on a mounting block and pushed, so that the partition plate drives a positioning rod to move, a clamping block is driven to rotate upwards in cooperation with a moving block, a limiting rod, a heart-shaped sliding groove, a through groove and the like, an L-shaped buckle on the rear side of the partition plate is clamped with the clamping block, the partition plate is placed on the mounting block more stably, and the partition plate is convenient to disassemble and mount; and the use effect of the device is improved.

The application relates to the technical field of building structures, and discloses a frame type wallboard structure. In the application, a frame body is composed of a plurality of edge frame sections on the outer side, a plurality of support sections are arranged in the frame body, a panel layer is arranged on the two sides of the frame body, and an adhesive is arranged between the frame body and the panel layer; the frame body and the support sections are made of high-strength lightweight alloy; the frame body is filled with heat preservation and insulation materials and sound insulation materials; the heat preservation and insulation materials are made of polyurethane foam or rock wool; the sound insulation materials are made of sound-absorbing cotton; the panel layer is made of fiber cement board; under the premise of ensuring the structural strength, the frame body and the support sections effectively reduce the weight of the wallboard, reduce the overall load of the building, facilitate transportation and construction, improve the construction efficiency, protect the internal structure through the panel layer, prolong the service life of the wallboard, have good decorative effect, and improve the aesthetic property of the building.

The invention relates to the technical field of fiber cement board finishing, and discloses an automatic fiber cement board finishing device which comprises a conveying frame, a conveying roller is rotationally connected in the conveying frame, a support is fixedly connected to the upper end face of the conveying frame, and an adjustable cutting mechanism is arranged in the support; according to the automatic trimming device for the fiber cement board, the adjustable mechanism is adopted, the distance between the two saw blades can be automatically adjusted conveniently according to the trimming size, operation is easy and convenient, the damaged saw blades can be conveniently replaced, continuous use can be achieved, the propelling device is adopted, stable propelling force can be automatically provided for the fiber cement board, and the trimming efficiency is improved. The fiber cement board can be automatically centered and limited through the centering mechanism, manual adjustment is not needed, the finishing efficiency is improved, the upper surface and the lower surface of the fiber cement board can be ground through the grinding mechanism, the surface of the board is smoother and smoother, and the overall visual effect is improved.

The present invention relates to a method to produce fibre cement products comprising heat-treated fibre cement waste material. The method saves energy and reduces CO2 emission compared to traditional production of fibre cement products.

This invention discloses a modified bamboo fiber cement-stabilized crushed stone and its preparation method, belonging to the technical field of road engineering construction materials. The material consists of fully graded crushed stone, 65-95 parts of 42.5 grade ordinary Portland cement, 3-7 parts of modified bamboo fiber, and 110-140 parts of water. The core innovation lies in using a composite modification process of "acid-base coupling etching + silane coupling agent coating" to treat the bamboo fiber, solving the problems of poor interfacial compatibility and easy agglomeration and degradation between natural bamboo fiber and cement-based materials. The material prepared by this invention exhibits a 28-day splitting strength 14.6%-41.5% higher than traditional cement-stabilized crushed stone, with a drying shrinkage coefficient controlled at 1.7×10⁻⁴ / ℃-2.1×10⁻⁴ / ℃ and a thermal shrinkage coefficient controlled at 2.8×10⁻⁵ / ℃-3.5×10⁻⁵ / ℃, realizing the resource utilization of bamboo waste. It is suitable for semi-rigid base and subbase layers of highways at all levels, especially suitable for heavy-load roads and highway construction in cold regions.

The invention relates to a method for coating the narrow surface of preferably rectangular board elements, in particular furniture boards, wood composite boards, worktops, chipboards, lightweight construction boards, interior construction boards, doors, fiber cement boards or the like, - wherein first at least one surface of the board element is coated by means of a coating material, - wherein subsequently a narrow surface of the board element is also coated by means of this coating material, - wherein, for this purpose, coating material protruding beyond the surface of the board element is bent over, preferably at a right angle, so that it covers at least one narrow surface of the board element, - wherein the coating material is linearly separated before or after bending thereof in the bending region, and - wherein subsequently the linear separation region is filled by means of a plastics profile or a plastics compound, preferably composed of polymeric A-grade material, preferably by means of a melting method. The invention further relates to a board element, in particular a furniture board, wood composite board, worktop, chipboard, lightweight construction board, interior construction board, door, fiber cement board or the like, having a thickness D, comprising at least one coating element, and at least one edge strip profile having a width B2 of 5 to 120 mm, preferably 5 to 105 mm. The invention further relates to a method for producing such a board element, such as furniture boards and the like.

The invention provides a method for plugging leakage and gushing in small-caliber core drilling by using expansive fiber cement paste, and belongs to the technical field of geological drilling. Early-strength adjustable cement (hereinafter referred to as early-strength cement), water and a leakage plugging agent containing a ductile fiber material are adopted as a leakage plugging mixture; for a micro-leakage stratum and a small-leakage stratum, pumping water to press the leaking stoppage mixture into the leakage hole section; in a medium-large-leakage and completely water-return-free stratum, the primarily poured mixture is mainly pasty, the addition amount of an extension fiber material and the use amount of cement are increased or decreased, or a material which has flexibility and can expand when encountering water is added, and pumping water is started to press the leaking stoppage mixture into a leakage hole section; in a water gushing stratum, a box is opened to pressurize a water head, and a pump is started to convey water to press the leaking stoppage mixture into a leakage hole section; if a large water gushing stratum is encountered, weighted slurry is pumped for pressure; the invention mainly aims at the problems of water leakage and water gushing in small-caliber core drilling engineering, especially the problem of leakage and water gushing drilling easily encountered in a shallow hole section or a complex stratum.