A lightweight thermal insulating cement-based material is formed from a mixture that includes cement, water and a foaming agent. The foaming agent can be an aluminum powder or a surfactant. The insulating material has a maximum use temperature of about 900 degrees Celsius or more.

Provided is a building material that is lightweight, exhibits excellent formability, and is inhibited from being damaged during transportation, and a method for producing the same. Specifically, provided is a method for producing a building material, including: a first step of curing a core layer material including a hydraulic material, a silica-containing material, and an aluminum powder, to react the aluminum powder and form bubbles, and incompletely hardening the hydraulic material and the silica-containing material, to form a foamed core layer; a second step of dispersing a surface layer material including a hydraulic material, and a silica-containing material, to form an unfoamed surface layer; a third step of stacking the foamed core layer on the unfoamed surface layer, to form a stack including the unfoamed surface layer and the foamed core layer; and a fourth step of pressing and curing the stack, and a building material produced therewith.

A waterproofing agent for concrete includes: 1-60 parts by weight of ferric ions; 1-60 parts by weight of carboxylate ions; 1-40 parts by weight of 8-hydroxyquinoline; and 1-50 parts by weight of pyrosulfate ions.

A waterproofing agent for concrete includes: 1-60 parts by weight of ferric ions; 1-60 parts by weight of carboxylate ions; 1-40 parts by weight of 8-hydroxyquinoline; and 1-50 parts by weight of pyrosulfate ions.

Lithium-containing cement admixtures including a calcium aluminate phosphate cement; a lithium-ion-containing compound; and an aqueous base fluid and methods of introducing the lithium-containing cement admixtures into a subterranean formation. The lithium-containing cement admixtures may further comprise an aluminosilicate or an additive including a set retarder, a set accelerator, a suspension aid, a density reducing agent, a fluid loss control agent, a defoamer, and any combination thereof.

Lithium-containing cement admixtures including a calcium aluminate phosphate cement; a lithium-ion-containing compound; and an aqueous base fluid and methods of introducing the lithium-containing cement admixtures into a subterranean formation. The lithium-containing cement admixtures may further comprise an aluminosilicate or an additive including a set retarder, a set accelerator, a suspension aid, a density reducing agent, a fluid loss control agent, a defoamer, and any combination thereof.

A composite product comprising a metakaolin-based mineral polymer. The composite product has a number of applications including use as a fire resistant material, use as a thermally insulating material and use as an impact resistance material. Methods of preparing a composite product according to the present invention and a kit of parts for preparing the composite product are also disclosed.

A composite product comprising a metakaolin-based mineral polymer. The composite product has a number of applications including use as a fire resistant material, use as a thermally insulating material and use as an impact resistance material. Methods of preparing a composite product according to the present invention and a kit of parts for preparing the composite product are also disclosed.

The invention relates to a composition for forming a casting mold, the composition containing heat-resistant inorganic particles; a waterglass-based binder; a surfactant; a silicon-containing compound; activated carbon powder and grain; and water; and the silicon-containing compound contains at least one of metal silicon and ferrosilicon.

The invention relates to a composition for forming a casting mold, the composition containing heat-resistant inorganic particles; a waterglass-based binder; a surfactant; a silicon-containing compound; activated carbon powder and grain; and water; and the silicon-containing compound contains at least one of metal silicon and ferrosilicon.