초록 ▼

Insulation barriers incorporating a cementitious structural matrix formed from a cementitious mixture including a hydraulic cement and water. The insulation barriers are manufactured from cementitious materials in order to be lightweight, insulative, less expensive, and more environmentally compatib

Insulation barriers incorporating a cementitious structural matrix formed from a cementitious mixture including a hydraulic cement and water. The insulation barriers are manufactured from cementitious materials in order to be lightweight, insulative, less expensive, and more environmentally compatible than those currently used; they may augment, and even take the place of, traditional insulation materials including insulations made of glass fibers, polyurethane foam, urea-formaldehyde foam, polystyrene, wood fiber, cellulose fiber, rock-wool, etc. The cementitious structural matrix of the insulation barriers usually includes a hydraulic cement paste (formed from the reaction of water with, e.g., a portland-type cement) in combination with a rheology-modifying agent, such as methylhydroxyethylcellulose, and a lightweight aggregate material, which lowers the density of the insulation barrier and increases its insulation ability. Fibrous materials may be incorporated into the cementitious mixture to increase the strength of the final product, while a discontinuous phase of nonagglomerated voids may be incorporated into the cementitious structural matrix to decrease the density and increase the insulation ability of the final product.

대표청구항 ▼

An insulation barrier formed from a cementitious mixture comprising a hydraulic cement selected from the group consisting of portland cement, slag cement, calcium aluminate cement, silicate cement, phosphate cement, high-alumina cement, and magnesium oxychloride cement, water, and a rheology-modifyi

An insulation barrier formed from a cementitious mixture comprising a hydraulic cement selected from the group consisting of portland cement, slag cement, calcium aluminate cement, silicate cement, phosphate cement, high-alumina cement, and magnesium oxychloride cement, water, and a rheology-modifying agent in an initial concentration such that the cementitious mixture has a rheology and early green strength during formation of the insulation barrier such that the insulation barrier is form stable within a period of time less than about 10 minutes after being positioned into a desired shape, the insulation barrier first achieving form stability while still in a green and moldable state, the insulation barrier having a density less than about 1 g/cm3 and a maximum thermal conductivity of about 0.06 W/m.K.