A kind of high-strength thermal insulation concrete and its preparation method

Abstract

The invention discloses high-strength thermal insulation concrete and a preparation method thereof. The high-strength thermal insulation concrete is prepared from, by mass, 300-400 parts of common silica cement, 100-200 parts of mineral powder, 100-200 parts of coal ash, 400-600 parts of sand, 900-1100 parts of stone, 40-70 parts of hollow glass beads 40-70 parts of glass beads, 10-20 parts of SiO2 aerogel, 5-9 parts of potash water glass, 5-15 parts of a water reducing agent and 110-180 parts of water. The high-strength thermal insulation concrete has the physical and mechanical performances of common concrete, meanwhile, has the heat preservation performance, and is a building material meeting the requirement for environmental protection.

Description

technical field [0001] The invention relates to the technical field of concrete in civil engineering, more specifically, it relates to a high-strength thermal insulation concrete and a preparation method thereof. Background technique [0002] At present, more than 93% of the building structures at home and abroad are reinforced concrete structures, and the concrete used in these building structures is ordinary concrete. Ordinary concrete has good compressive performance, but its thermal insulation performance is poor. The thermal conductivity of ordinary concrete is relatively high, and its thermal insulation performance is very poor. Effective measures such as internal / external insulation layers are used to reduce the heat exchange between indoors and outdoors, so as to achieve the effect of thermal insulation. [0003] In order to improve the poor insulation performance of ordinary concrete, an insulation layer needs to be added to the inner / peripheral structure of the bu...

AI Technical Summary

Problems solved by technology

At present, the application of foam concrete in various fields has not been widely used, mainly due to the problems of dry density and compressive strength.

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