INORGANIC LIGHTWEIGHT HEAT INSULATING COMPOSITION AND A MANUFACTURING METHOD OF INORGANIC LIGHTWEIGHT HEAT INSULATING MATERIAL CONTAINING THE SAME

摘要

The present invention relates to a lightweight foam inorganic insulation material composition in which a volume of independent foam in a volume of the total composition is 88-98%, density is 0.05-0.16 g/cm^3, and thermal conductivity is 0.032-0.050 W/mK by mixing an animal foaming agent, which is pre-foamed, and paste including 50-100 parts by weight of cement; 5-20 parts by weight of admixture, 1-50 parts by weight of a hardening accelerator; 0.01-2 parts by weight of a superplasticizer; 0.01-5 parts by weight of acrylic emulsion; 0.01-2 parts by weight of a foam enhancer; 0.01-1 parts by weight of a fiber; and 35-120 parts by weight of mixing water. In addition, autoclave curing is unnecessary unlike a conventional cement-based inorganic insulation material. Moreover, provided is a method of manufacturing a lightweight foam inorganic insulation material comprising: a step (a) of manufacturing paste including 50-100 parts by weight of cement, 5-20 parts by weight of admixture, 1-50 parts by weight of a hardening accelerator, 0.01-2 parts by weight of a superplasticizer, 0.01-5 parts by weight of acrylic emulsion, 0.01-2 parts by weight of a foam enhancer, 0.01-1 parts by weight of a fiber, and 35-120 parts by weight of mixing water; a step (b) of manufacturing a lightweight foam inorganic insulation material composition by mixing a foamed animal foaming agent and the paste to allow a volume of independent foam in a volume of the total composition to be 88-98%; and a step (c) of forming the lightweight foam inorganic insulation material composition, and curing the same at room temperature.