Provided herein are compositions, methods, and systems comprising vaterite and magnesium oxide.

Provided herein are compositions, methods, and systems comprising vaterite and magnesium oxide.

Provided herein are compositions, methods, and systems comprising vaterite and magnesium oxide.

The present disclosure relates generally to plaster wall panels, for example, suitable for covering interior wall frames. The present disclosure relates more particularly to a plaster wall panel including a first plaster layer, a second plaster layer, and a damping layer disposed between the first and second plaster layers. The first plaster layer has a first thickness and is composed of a first plaster material that has a first material property. The second plaster layer has a second thickness and is composed of a second plaster material that has a second material property. The first thickness is smaller than the second thickness, and the first and second material properties are different.

The present disclosure relates generally to plaster wall panels, for example, suitable for covering interior wall frames. The present disclosure relates more particularly to a plaster wall panel including a first plaster layer, a second plaster layer, and a damping layer disposed between the first and second plaster layers. The first plaster layer has a first thickness and is composed of a first plaster material that has a first material property. The second plaster layer has a second thickness and is composed of a second plaster material that has a second material property. The first thickness is smaller than the second thickness, and the first and second material properties are different.

The present invention relates to fiber cement flooring products. In particular, the present invention provides fiber cement flooring products, at least comprising cement and fibers, characterized in that these fiber cement flooring products comprise amorphous silica in an amount of between about 2 weight % and about 15 weight % compared to the total dry weight of the fiber cement composition of said fiber cement flooring product. The present invention further relates to methods for the production of such fiber cement flooring products as well as uses of such fiber cement flooring 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 flooring applications.

A joint compound formulation is a mixture of a clay, cellulose ethers, expanded perlite, an adhesive, limestone, water, and a surfactant. The surfactant includes an alkyl trisiloxane. In addition a foam stabilizer, sodium dodecyl diphenyl ether disulfonate, may be added to the formulation.

A joint compound formulation is a mixture of a clay, cellulose ethers, expanded perlite, an adhesive, limestone, water, and a surfactant. The surfactant includes an alkyl trisiloxane. In addition a foam stabilizer, sodium dodecyl diphenyl ether disulfonate, may be added to the formulation.

High alumina cement is produced in a submerged combustion melter, cooled and ground.

A cement admixture containing one kind or two or more kinds of non-hydraulic compound(s) selected from γ-2CaO.Math.SiO.sub.2, 3CaO.Math.2SiO.sub.2, α-CaO.Math.SiO.sub.2, and calcium magnesium silicate, wherein the non-hydraulic compound contains Li, and the content rate of the Li is 0.001 to 1.0% by mass in terms of oxide. Such admixtures may contain, as chemical components, 0.001 to 1.0 parts by mass of Li.sub.2O, 45 to 70 parts by mass of CaO, 30 to 55 parts by mass of SiO.sub.2, and 0 to 10 parts by mass of Al.sub.2O.sub.3 in 100 parts by mass of the cement admixture.