Nano-additive agent modified high-strength wall self-thermal insulation material and preparing method thereof

Abstract

The invention discloses a nano additive modified high strength wall self heat preservation brick and a preparation method thereof. The method comprises the following steps: according to mass portion, 1 to 20 portions of bonding agent, 0.1 to 5 portions of admixture and 0.5 to 5 portions of nano additive are evenly mixed and added with admixtures, the weight of which is 0.001 to 0.1 times against the weight of the mixture, and evenly mixed again; and the mixture obtained is added with water and shaped. For the wall self heat preservation brick prepared by the method of the invention, the pressive strength is between 5 and 14MPa, the coefficient of thermal conductivity is between 0.1 and 0.2w/m.k, so that the brick is a highly efficient energy saving building material with superior performance.

Description

technical field [0001] The invention relates to high-efficiency energy-saving materials in the field of construction, in particular to a high-strength wall self-insulation material and a preparation method thereof. Background technique [0002] Building energy consumption accounts for a large proportion of the total energy consumption of the national economy. In order to achieve the strategic goal of building energy saving of 65% in the third step, my country officially implemented the "Code for Construction Quality Acceptance of Building Energy Saving Engineering" on October 1, 2007. . Building energy saving is a comprehensive system engineering, and its focus is on the energy saving of the building envelope, and the outer wall accounts for the largest proportion in the building envelope, and the heat lost by it accounts for about 30% of the heat dissipation of the building envelope, so how to It is very important to improve the thermal insulation performance of the exterio...

AI Technical Summary

Problems solved by technology

However, there is a serious problem in the existing inventions of nano-insulation materials - the compressive strength is low, generally not exceeding 2MPa, and it cannot be used as a self-insulation material for building walls

[0012] The above discussion shows that with the implementation of the national energy-saving and environmental protection policy, the existing wall insulation materials can no longer meet the requirements of building energy-saving development due to low strength, poor thermal insulation performance, and poor flame retardancy. Excellent performance, but due to its high brittleness and low strength, it cannot be used as a wall self-insulation material