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Foam concrete

A foamed concrete and foaming agent technology, applied in the field of foamed concrete, can solve problems such as reducing the strength of foamed concrete, and achieve the effects of improving load-bearing capacity, preventing crack leakage, and improving cooling and heating effect.

Active Publication Date: 2012-06-20
CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foamed concrete is not as light as possible. Generally speaking, the lighter the quality, the lower the strength of planed foamed concrete. If excessive pursuit of lightness will reduce the strength of foamed concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: A foam concrete is prepared by mixing the following raw materials in parts by weight: 200-300 parts of cement, 250-850 parts of fine sand, 20-40 parts of foaming agent, and 10-20 parts of compensating agent. Fillers and / or aggregates may also be added.

[0019] The cement is ordinary Portland cement, slag Portland cement or fly ash cement with p.o42.5 or more; the compensating agent is CaO-AL 2 o 2 -CaSO 3 .

[0020] Before mixing the foam concrete, add about 2kg of basic foaming agent into the foam bottle, then fill up with water, inflate and pressurize. During the pressurization process, the pressure of the pressure gauge is controlled within the range of 0.6-0.8MPa according to actual needs. When the pressure is greater than 0.8MPa, the air compressor stops working, and when the pressure is less than 0.6MPa, the air compressor automatically starts. When the pressure reaches 0.8MPa for the first time, the foaming agent is mixed with the water mixing ...

Embodiment 2

[0023] Embodiment 2: A kind of foam concrete, is made by mixing the following raw materials according to weight parts: 300 parts of ordinary Portland cement, 840 parts of fine sand, 20 parts of foaming agent, CaO-AL 2 o 2 -CaSO 3 10 servings. Others are the same as embodiment 1.

Embodiment 3

[0024] Embodiment 3: A foam concrete is prepared by mixing the following raw materials in parts by weight: 300 parts of slag portland cement, 460 parts of fine sand, 30 parts of foaming agent, 10 parts of compensating agent, and 20 parts of triethanolamine. Others are the same as embodiment 1.

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Abstract

Foam concrete is produced by mixing the following raw materials in parts by weight: 200-300 parts of cement, 250-850 parts of fine sand, 20-40 parts of foaming agent and 10-20 parts of compensating agent. The foam concrete has the advantages that: the foam concrete is light in weight and attractive in appearance; closed holes exist in the foam concrete, so that the volume weight of the foam concrete is 500-1200 kg / m3; the foam concrete is cast in site and integrally formed and is light in weight and high in hardness; the foam concrete is closely connected with a base course, so that the bearing capability of a heat insulating layer is greatly improved; and the original raised heat insulating layer is changed into an attractive, flat and practical garden, or an entertainment place or the like, so that the using space of a building is increased.

Description

technical field [0001] The invention belongs to the technical field of construction industry, and in particular relates to a foam concrete. Background technique [0002] In my country, building energy consumption accounts for 25% of my country's total energy. Compared with developed countries, my country's building energy consumption is 3 to 4 times that of developed countries, and roof energy consumption is 2.5 to 5.5 times that of developed countries. Foamed concrete material is more and more widely used and promoted in various projects because of its numerous small independent, evenly distributed, closed pore structure, and its light weight, high strength, heat insulation, waterproof, fireproof, and earthquake resistance. [0003] Since the porosity in foam concrete is generally as high as 50-70%, the strength of concrete is much lower than that of ordinary concrete. Foamed concrete is not as light as possible. Generally speaking, the lighter the quality, the lower the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/02C04B28/04C04B28/08
Inventor 焦安亮黄延铮陈磊闫亚召张煜
Owner CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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