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Low thermal conductive aerated concrete block and preparation method thereof

A technology of aerated concrete and low thermal conductivity, applied in the field of building materials, can solve problems such as poor thermal insulation, and achieve the effects of improving water seepage capacity, high compressive strength, and increasing hydrophobicity

Active Publication Date: 2015-04-01
JIANGSU GOLDEN CUBE ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide low thermal conductivity aerated concrete block and its preparation method to solve the problem of poor heat insulation existing in aerated concrete block

Method used

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Embodiment Construction

[0013] A low thermal conductivity aerated concrete block is made of the following raw materials in parts by weight (kg): cement 18, quicklime 18, gypsum 15, aluminum powder 0.25, fly ash 20, floating beads 20, waste brick fragments 20, Expanded polypropylene particles 10, ammonium persulfate 5, oil foot 6, chlorinated paraffin 5, propylene glycol 5, acrylate-2-hydroxypropyl ester 3, borax 6.

[0014] The preparation method of low thermal conductivity aerated concrete block is characterized in that it comprises the following steps:

[0015] (1) Add appropriate amount of water to fly ash and floating beads, heat to 80-90°C, stir for 5-10 minutes, add oil base and propylene glycol, stir for 15-25 minutes, then add ammonium persulfate, stir for 30-45 minutes Minutes later, add borax, 2-hydroxypropyl acrylate, gypsum and stir for 30-40 minutes, stirring into mud;

[0016] (2) Add cement to 90-100°C hot water and mix for 5-15 minutes, then add the mud obtained in step (1), quicklim...

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Abstract

The invention relates to a low thermal conductive aerated concrete block and a preparation method thereof. The low thermal conductive aerated concrete block is prepared by the following raw materials by weight: 18-22 parts of cement, 15-18 parts of quicklime, 10-15 parts of gypsum, 0.25-0.4 part of aluminum powder, 20-30 parts of fly ash, 15-20 parts of floating beads, 20-25 parts of waste brick fragments, 10-15 parts of foamed polypropylene particles, 3-5 parts of sodium persulfate, 6-8 parts of oil residues, 3-5 parts of chlorinated paraffin, 5-8 parts of propylene glycol, 3-5 parts of 2-hydroxypropyl acrylate and 4-6 parts of borax. Foamed particles are used, so that the aerated concrete block has the characteristics of light weight and heat insulation. In summer, an indoor temperature of a room employing the block provided by the invention is 4-5 DEG C lower than a room employing conventional aerated concrete wall.

Description

technical field [0001] The invention belongs to a building material technology, in particular to a concrete block and a preparation method thereof. Background technique [0002] As a new type of wall material, air-entrained concrete is a low-energy, environmentally-friendly new building material, which belongs to the building materials promoted by the state. However, because ordinary air-entrained concrete is made of cement, fly ash, quicklime, gypsum, etc. Large shrinkage value, low strength, water seepage, no corrosion resistance, poor heat insulation, single source of material, etc. Therefore, further research on aerated concrete block technology is urgently needed to further meet market requirements. Contents of the invention [0003] The purpose of the present invention is to provide low heat conduction aerated concrete blocks and a preparation method thereof, so as to solve the problem of poor heat insulation existing in current aerated concrete blocks. [0004] Tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B28/14
Inventor 梅林
Owner JIANGSU GOLDEN CUBE ENVIRONMENTAL TECH CO LTD
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