A method of sequestering gas-phase materials, hempcrete formed using the method, and methods of using hempcrete are disclosed. An exemplary method includes providing a mixture of hempcrete compound material within a chamber and exposing the mixture within the chamber to a gas for a period of time to form hempcrete, wherein the hempcrete exhibits net-negative life cycle carbon emissions. A model to predict net life cycle carbon emission of hempcrete is also disclosed.

A method of sequestering gas-phase materials, hempcrete formed using the method, and methods of using hempcrete are disclosed. An exemplary method includes providing a mixture of hempcrete compound material within a chamber and exposing the mixture within the chamber to a gas for a period of time to form hempcrete, wherein the hempcrete exhibits net-negative life cycle carbon emissions. A model to predict net life cycle carbon emission of hempcrete is also disclosed.

A cement-based artificial stone plate includes a cement-based plate body; and a metal mesh being embedded in the cement-based plate body; wherein the metal mesh is arranged with at least one fixing member, the fixing member defines a screw hole along its axis, and the screw hole of the fixing member is exposed on back of the cement-based plate body, and back of the plate body is provided with regular or irregular protrusions, between any two protrusions forms a groove, and bottom of each groove is close to the metal mesh.

A cement-based artificial stone plate includes a cement-based plate body; and a metal mesh being embedded in the cement-based plate body; wherein the metal mesh is arranged with at least one fixing member, the fixing member defines a screw hole along its axis, and the screw hole of the fixing member is exposed on back of the cement-based plate body, and back of the plate body is provided with regular or irregular protrusions, between any two protrusions forms a groove, and bottom of each groove is close to the metal mesh.

A high toughness inorganic composite artificial stone panel and preparation method are disclosed. The panel includes a surface layer, an intermediate metal fiber toughening layer and a substrate toughening layer. The surface layer includes the following components: 40-70 parts of quartz sand, 10-30 parts of quartz powder, 20-45 parts of inorganic active powder, 0.5-4 parts of pigment, 0.3-1 part of water reducer and 3-10 parts of water. The intermediate metal fiber toughening layer includes the following components: 40-60 parts of inorganic active powder, 45-65 parts of sand, 0.8-1.5 parts of water reducer, 6-14 parts of water and 4-8 parts of metal fiber. The substrate toughening layer includes the following components: 30-50 parts of inorganic active powder, 30-55 parts of quartz sand, 15-20 parts of quartz powder, 0.5-1.2 parts of water reducer, 4-8 parts of water and 0.8-2.5 parts of toughening agent.

A high toughness inorganic composite artificial stone panel and preparation method are disclosed. The panel includes a surface layer, an intermediate metal fiber toughening layer and a substrate toughening layer. The surface layer includes the following components: 40-70 parts of quartz sand, 10-30 parts of quartz powder, 20-45 parts of inorganic active powder, 0.5-4 parts of pigment, 0.3-1 part of water reducer and 3-10 parts of water. The intermediate metal fiber toughening layer includes the following components: 40-60 parts of inorganic active powder, 45-65 parts of sand, 0.8-1.5 parts of water reducer, 6-14 parts of water and 4-8 parts of metal fiber. The substrate toughening layer includes the following components: 30-50 parts of inorganic active powder, 30-55 parts of quartz sand, 15-20 parts of quartz powder, 0.5-1.2 parts of water reducer, 4-8 parts of water and 0.8-2.5 parts of toughening agent.

The present disclosure relates to an artificial agglomerated stone comprising micronized feldspar and to a method for its manufacturing.

Disclosed is a mold release film that is to be placed between a stock solution that serves as a raw material for artificial marble and a shaping apparatus when the stock solution is fed to the shaping apparatus, and then solidified and molded. The mold release film is a polyvinyl alcohol film and is characterized by being a polyvinyl alcohol mold release film for artificial marble molding use that satisfies the following formula (1). Due to this, it is possible to provide a polyvinyl alcohol mold release film for artificial marble molding use capable of, even in the production of wide artificial marble, suppressing wrinkles or curls generated at both end parts to prevent the surface shape of the resulting artificial marble from being defective, and simplifying the step of grinding and polishing artificial marble, and a method for producing artificial marble using the same.

4.6×10.sup.−3≥Δn(MD).sub.0−1.4×10.sup.−3≥Δn(TD).sub.0≥1.0×10.sup.−3  (1) in the formula (1), Δn(MD).sub.0 represents a value determined from a birefringence index of the polyvinyl alcohol mold release film in the machine direction at the center part of the transverse direction of the film by averaging the birefringence index along the thickness direction of the film, and Δn(TD).sub.0 represents a value determined from a birefringence index of the polyvinyl alcohol mold release film in the transverse direction at the center part of the transverse direction of the film by averaging the birefringence index along the thickness direction of the film.

Disclosed is a mold release film that is to be placed between a stock solution that serves as a raw material for artificial marble and a shaping apparatus when the stock solution is fed to the shaping apparatus, and then solidified and molded. The mold release film is a polyvinyl alcohol film and is characterized by being a polyvinyl alcohol mold release film for artificial marble molding use that satisfies the following formula (1). Due to this, it is possible to provide a polyvinyl alcohol mold release film for artificial marble molding use capable of, even in the production of wide artificial marble, suppressing wrinkles or curls generated at both end parts to prevent the surface shape of the resulting artificial marble from being defective, and simplifying the step of grinding and polishing artificial marble, and a method for producing artificial marble using the same.

4.6×10.sup.−3≥Δn(MD).sub.0−1.4×10.sup.−3≥Δn(TD).sub.0≥1.0×10.sup.−3  (1) in the formula (1), Δn(MD).sub.0 represents a value determined from a birefringence index of the polyvinyl alcohol mold release film in the machine direction at the center part of the transverse direction of the film by averaging the birefringence index along the thickness direction of the film, and Δn(TD).sub.0 represents a value determined from a birefringence index of the polyvinyl alcohol mold release film in the transverse direction at the center part of the transverse direction of the film by averaging the birefringence index along the thickness direction of the film.

A method for manufacturing a concrete product includes providing a metal-based cementing agent, and an acid-based cement reacting agent of the form H.sub.nXO.sub.m, where “X” is an element selected from group consisting of phosphorous, carbon, sulfur and boron, “n” and “m” are selected so that the cement reacting agent is an acid, and “X” will bond with the metal-based cementing agent to form a metal cement. The method further includes providing an aggregate defined by an exposed surface area having metallic aggregate linking elements thereon which can chemically bond with “X” in the presence of the acid-based cement reacting agent, and providing a hydroxide-supplying additive. The method includes combining together the metal-based cementing agent, the acid-based cement reacting agent, the aggregate and the hydroxide-supplying additive, and allowing the metal-based cementing agent and the acid-based cement reacting agent to react and bond with the aggregate to form the concrete product.