EPS light aggregate concrete composite wall and its construction method

A lightweight aggregate concrete and composite wall technology, applied in the processing of building materials, building components, insulation, etc., can solve the problems of thermal performance that cannot meet the requirements, energy saving and thermal insulation capacity enhancement, etc., to achieve indoor thermal stability , thermal insulation performance improvement, and the effect of delaying the temperature change of the inner surface

Active Publication Date: 2012-11-07
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an EPS light aggregate concrete composite wall for load-bearing walls in the construction field, which solves the problem that the thermal performance cannot

Method used

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  • EPS light aggregate concrete composite wall and its construction method
  • EPS light aggregate concrete composite wall and its construction method
  • EPS light aggregate concrete composite wall and its construction method

Examples

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preparation example Construction

[0074] The preparation process of EPS light aggregate concrete thermal insulation wall is as follows: first, mix polyvinyl acetate emulsion with a small amount of cement, silica fume, and fly ash with water to make a paste, and the amount of cement, silica fume, and fly ash and the proportion The polyvinyl acetate solution can be adjusted into a paste as a standard, and the EPS particles are put into the forced mixer and stirred together, so that there is a thin layer of uniform cement mixed mortar on the surface of the sphere. After the surface is dry, it is best to wait until it is mixed with polyvinyl acetate. The cement slurry of ethylene emulsion is condensed and hardened on the surface of the EPS sphere to produce a certain strength, and then mixed with the remaining water, cement, fly ash, sand, expanded perlite, and silica fume in a forced mixer. Mix cement and mortar together. Then pour the EPS light aggregate concrete into the mold for compaction and compaction. Sin...

Embodiment 1

[0098] The test materials for the composite wall insulation layer are as follows per cubic meter:

[0099] Cement 350Kg, fly ash 110Kg, silica fume 70Kg, river sand 127Kg, water 198Kg, EPS particles 15Kg, perlite 40Kg, polyvinyl acetate emulsion 18Kg;

[0100] The particle size of silica fume is 0.1μm, and the density is 2.4g / cm 3 , bulk density 350kg / m 3 , specific surface area 25000m 2 / kg;

[0101] The river sand ratio is 20% by volume, and the bulk density is 1325kg / m 3 , the water absorption rate is 1.0%;

[0102] The density of EPS particles is 10kg / m 3 ;

[0103] Preparation Process:

[0104] shell making

[0105] Add the polyvinyl acetate solution together with a small amount of water, cement, silica fume and fly ash into the first forced mixer and stir into a paste;

[0106] Put the EPS particles into the first forced mixer and stir for 8 seconds, so that a thin layer of uniform cement-mixed mortar hangs on the surface of the EPS particles;

[0107] Stand fo...

Embodiment 2

[0129] The test materials for the composite wall insulation layer are as follows per cubic meter:

[0130] 350 parts of cement, 90 parts of fly ash, 50 parts of silica fume, 120 parts of river sand, 190 parts of water, 18 parts of EPS particles, 50 parts of perlite, 15 parts of polyvinyl acetate emulsion;

[0131]The particle size of silica fume is 0.15μm, and the density is 2.2g / cm 3 , bulk density 280kg / m 3 , specific surface area 20000m 2 / kg;

[0132] The river sand ratio is 22% by volume, and the bulk density is 1275kg / m 3 , the water absorption rate is 0.95%;

[0133] The density of EPS particles is 15kg / m 3 ;

[0134] The preparation process of the insulation layer is as follows:

[0135] shell making

[0136] Add the polyvinyl acetate solution together with a small amount of water, cement, silica fume and fly ash into the first forced mixer and stir into a paste;

[0137] Put the EPS particles into the first forced mixer and stir for 10 seconds, so that a thin...

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Abstract

The invention provides an EPS light aggregate concrete composite wall and its construction method, belongs to the field of constructional insulation walls, and solves the problem that thermoengineering property of a wall composed of a single material can not meet requirements when the wall is used as a bearing wall. Based on that fact that strength of the composite wall meets requirements, its energy-saving and insulation capabilities are greatly enhanced. The composite wall comprises a base, an adhesive mortar layer, a heat-insulation layer, a rendering coat and a finish coat, wherein the base and the heat-insulation layer are anchored through an anchor bolt; raw materials for the preparation of the heat-insulation layer comprise cement, perlite, fly ash, water, EPS particles, river sand, a polyvinyl acetate solution and silica fume; and raw materials for the preparation of the adhesive mortar comprise cement, river sand, a polymer emulsion, cellulose ether and water. The composite wall provided by the invention can be used to eliminate thermal bridges in building construction and improve indoor environment, has no insulation cut point, and is beneficial to indoor thermostabilization.

Description

technical field [0001] The invention belongs to the field of thermal insulation walls for buildings, and in particular relates to an EPS light aggregate concrete composite wall and a construction method thereof. Background technique [0002] Energy is an important material basis for developing production and improving life, and modern buildings consume a lot of energy. In economically rich developed countries, the proportion of building energy consumption to national energy consumption is quite high, generally accounting for 30%-40% %about. Building energy saving is the general trend of building development in the world today, and various countries have done different levels of work for this purpose. In building energy consumption, the energy consumption of wall structures accounts for a considerable proportion. Therefore, the improvement of the thermal performance of the wall structure has naturally become the focus of building energy conservation in many countries. [00...

Claims

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Application Information

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IPC IPC(8): C04B28/00E04B1/80E04G21/14
Inventor 张雪松
Owner CHINA ELECTRIC POWER RES INST
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