A foam concrete has constituents that include a cement, a sand, a coarse aggregate having a density in a range of 1400-1600 kg/m.sup.3, a water, and a foam solution. The foam solution includes a foaming agent and a foaming water. The foam concrete has a compressive strength of at least 20 MPa, a thermal conductivity of less than 0.40 W/mK and a maximum dry weight of 2000 kg/m.sup.3.

A mineral wool insulating product having improved off gassing characteristics is particularly adapted for high temperature applications.

A pervious concrete composition comprising a superabsorbent polymer, thereby enabling a water/cement ratio of 0.35-0.50. The superabsorbent polymer can be a cross-linked sodium polyacrylate-acrylamide/acrylic acid copolymer. The invention further comprises methods of installing the pervious concrete compositions.

A high performance engineered composite cementitious ductile mortar including a predetermined amount of matrix interactive fibers; a water reducer having a plasticizing effect; and a defoamer/plasticizer having a plasticizing effect. A carboxylic acid polymer or carboxylic acid copolymer based superplasticizer are not included in the defoamer/plasticizer or the water reducer.

The present invention relates to the use of sacrificial agents to counteract the deleterious impact of gypsum contaminants on the effectiveness of certain stucco additives, particularly, water reducing agents and foaming agents, in a stucco slurry used to make gypsum wallboard.

A mineral wool insulating product having improved off gassing characteristics is particularly adapted for high temperature applications.

A roof cover board made from a mixture of 30-60% stucco; 20-50% perlite; 10-30% cellulose fiber; 3-20% starch; and siloxane. Also disclosed is a stucco-free roof cover board made from a mixture of 30-60% perlite, 30-60% cellulose fiber, 5-25% starch; and siloxane. Also disclosed are methods for making same.

A composition for producing a glass fiber reinforced cement rebar, the composition comprising glass fiber; and a binder, the binder impregnates the glass fibers to hold the glass fibers together, where the binder comprises a cementitious component and a non-cement component, where the non-cement component comprises graphene oxide.

A method for producing a composite material includes using an alkaline binder containing alkali silicate glass; an organic gelling agent and SiO.sub.2 particles; and a biological carrier material. The composite material is particularly stable, flame-proof and also suitable for the exterior.

Methods for making carbon-fiber reinforced geopolymer composites are provided. The methods produce metakaolin-based geopolymer composites in which multiwalled carbon nanotubes and/or carbon nanofibers are well dispersed in an metakaolin-based geopolymer matrix. The mixing protocols of the methods used to produce carbon-fiber reinforced geopolymer composites produce composites with reduced porosity, high elastic moduli, high strength, and/or high fracture toughness.