High-strength thermal insulation concrete and preparation method thereof

Abstract

The invention discloses high-strength thermal insulation concrete. The invention discloses a high-strength concrete, which comprises the following components in parts by weight: 210-220 parts of riversand, 220-230 parts of trepanning volcanic stone, 140-150 parts of broken stone, 120-125 parts of Portland cement, 18-20 parts of fly ash, 36-41 parts of a self-made foaming adhesive, 2-3 parts of awater reducing agent and 80-90 parts of water. In the concrete preparation process, trepanning volcanic stone is used as aggregate; due to the fact that the trepanning volcanic stone is of a three-layer bubble hole structure, the specific surface area of the trepanning volcanic stone is increased through a layer-by-layer wrapping structure. Along with the increase of the foam holes, more spaces exist in the material, so that the content of air filled in the trepanning volcanic stone is increased, the heat insulation performance of the trepanning volcanic stone is further improved, and the heatinsulation performance of the prepared concrete is further improved. The volcanic stone itself has high compressive strength, and the compressive strength is further increased after the polymer is filled in the pore channels, so that the concrete not only has high heat insulation performance, but also has high compressive strength.

Description

technical field [0001] The invention belongs to the field of concrete preparation, and relates to a high-strength thermal insulation concrete and a preparation method thereof. Background technique [0002] Concrete is the most widely used material in civil engineering. However, concrete has disadvantages such as poor compressive capacity, high brittleness, easy water seepage, and poor thermal insulation performance, which makes it easy for water seepage through gaps and heat insulation when houses and other residential buildings are constructed. The insulation effect is poor. [0003] In order to achieve high thermal insulation performance in the existing concrete preparation process, the concrete is usually prepared as foam concrete, which can achieve high thermal insulation performance, and its thermal conductivity can reach 0.18W / m.K, but the resistance of foam concrete The compressive strength is poor and cannot be used for the load bearing of the building, which in tur...

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Problems solved by technology

[0002] Concrete is the most widely used material in civil engineering. However, concrete has disadvantages such as poor compressive capacity, high brittleness, easy water seepage, and poor thermal insulation performance, which makes it easy for water seepage through gaps and heat insulation when houses and other residential buildings are constructed. Poor insulation effect

[0003] In order to achieve high thermal insulation performance in the existing concrete preparation process, concrete is usually prepared as foam concrete, which can achieve high thermal insulation performance, and its thermal conductivity can reach 0.18W / m.K, but the resistance of foam concrete The compressive strength is poor and cannot be used for the load bearing of the building, which in turn affects the life of the building

[0004] In order to improve the strength of concrete in the existing concrete preparation process, polymer binders or polymer fibers are usually added to the concrete to fill the gaps of the concrete through the polymer, reduce the gap ratio of the concrete, and improve the strength of the concrete, but for The thermal insulation performance of concrete has no effect