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A kind of ultra-light foam concrete and preparation method thereof

A technology of foam concrete and concrete, which is applied in the field of building energy-saving and thermal insulation materials, can solve the problems of sewage pollution, dust pollution, etc., and achieve the effects of convenient construction, improved strength in the later stage, improved slurry consistency and foam stabilization performance

Active Publication Date: 2017-12-12
CHONGQING CONSTR ENG SECOND CONSTR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Severe sewage pollution and dust pollution are caused due to the fact that the sludge has not been effectively utilized

Method used

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  • A kind of ultra-light foam concrete and preparation method thereof
  • A kind of ultra-light foam concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The admixture of the material component and its compounding ratio adopted in the present embodiment is as follows:

[0058] 52.5 grade ordinary Portland cement: 120kg

[0059] 42.5 grade rapid hardening sulfoaluminate cement: 20kg

[0060] Concrete mixing station sludge: 40kg

[0061] Ether polycarboxylate superplasticizer with a solid content of 20%: 0.5kg

[0062] Polyvinyl acetate-ethylene copolymer latex powder (VAE): 2kg

[0063] Hydroxypropyl methylcellulose ether (HPMC) with a viscosity of 100,000 Pa·s: 0.1kg

[0064] Polypropylene monofilament staple fiber: 1kg

[0065] Calcium stearate: 0.2kg

[0066] Sintered shale brick powder: 1.0kg

[0067] Hydrogen peroxide with a mass concentration of 30.0%: 6kg

[0068] Tap water: 80kg

[0069] Wherein, the sintered shale brick powder is obtained by crushing sintered shale bricks and passing through a 75-micron sieve, and the concrete mixing station sludge is obtained by drying the flocculent sediment in the sedi...

Embodiment 2

[0076] The admixture of the material component and its compounding ratio adopted in the present embodiment is as follows:

[0077] 52.5 grade ordinary Portland cement: 100kg

[0078] 42.5 grade rapid hardening sulfoaluminate cement: 30kg

[0079] Concrete mixing station sludge: 60kg

[0080] Ether polycarboxylate superplasticizer with a solid content of 20%: 1.0kg

[0081] Polyvinyl acetate-ethylene copolymer latex powder (VAE): 2.5kg

[0082] Hydroxypropyl methyl cellulose ether (HPMC) with a viscosity of 100,000 Pa·s: 0.2kg

[0083] Polypropylene monofilament staple fiber: 1.5kg

[0084] Calcium stearate: 0.3kg

[0085] Sintered shale brick powder: 1.5kg

[0086] Hydrogen peroxide with a mass concentration of 30.0%: 6.5kg

[0087] Tap water: 60kg

[0088] Wherein, the sintered shale brick powder is obtained by crushing sintered shale bricks and passing through a 75-micron sieve, and the concrete mixing station sludge is obtained by drying the flocculent sediment in t...

Embodiment 3

[0091] The admixture of the material component and its compounding ratio adopted in the present embodiment is as follows:

[0092] 52.5 grade ordinary Portland cement: 100kg

[0093] 42.5 grade rapid hardening sulfoaluminate cement: 40kg

[0094] Concrete mixing station sludge: 80kg

[0095] Ether polycarboxylate superplasticizer with a solid content of 20%: 1.0kg

[0096] Polyvinyl acetate-ethylene copolymer latex powder (VAE): 3.0kg

[0097] Hydroxypropyl methyl cellulose ether (HPMC) with a viscosity of 100,000 Pa·s: 0.2kg

[0098] Polypropylene monofilament staple fiber: 1.5kg

[0099] Calcium stearate: 0.3kg

[0100] Sintered shale brick powder: 1.5kg

[0101] Hydrogen peroxide with a mass concentration of 30.0%: 7kg

[0102] Tap water: 60kg

[0103] Wherein, the sintered shale brick powder is obtained by crushing sintered shale bricks and passing through a 75-micron sieve, and the concrete mixing station sludge is obtained by drying the flocculent sediment in the...

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Abstract

The invention relates to ultralight foam concrete and a preparing method thereof. The ultralight foam concrete is prepared by adopting common Portland cement, quick-to-solid sulphate aluminium cement, sludge of concrete batching plant, polycarboxylate superplasticizer, re-dispersible latex powder, hydroxypropyl methyl cellulose ether, calcium stearate, sintered shale brick powder, polypropylene fiber, hydrogen peroxide, water and the like through stirring, mixing, foaming, pouring, molding, curing and the like. The ultralight foam concrete has the advantages of low cost, high use rate of waste, high foaming efficiency of hydrogen peroxide, and good physical and mechanical properties, and an effect of preparing the ultralight foam concrete by using building garbage and wastes is achieved. The ultralight foam concrete is used for roof thermal insulation, wall body cavity filling and building floor thermal insulation.

Description

technical field [0001] The invention relates to an ultra-light foam concrete and a preparation method thereof, and belongs to the technical field of building energy-saving and thermal insulation materials. Background technique [0002] Ultra-light foam concrete usually refers to dry density not greater than 300kg / m 3 foam concrete, but in practical applications, ultra-light foam concrete is usually designed to be 150-200kg / m 3 . The main application of ultra-light foamed concrete is as a wall cavity filling material for the preparation of structural and thermal insulation integrated wall materials to improve the thermal insulation function of buildings. Ultra-light foam concrete can also be used for roof insulation and floor insulation, and can also be used for foundation filling, etc. [0003] The foaming agents currently used to prepare ultra-light foam concrete are mainly physical foaming agents and chemical foaming agents. The most commonly used chemical blowing agen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B28/06C04B111/40
CPCC04B28/06C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B7/02C04B18/0418C04B24/26C04B24/2611C04B24/383C04B16/0633C04B24/04C04B14/108C04B22/068C04B38/02
Inventor 何向东贾兴文王洪木蔡静胡皞司端科张新
Owner CHONGQING CONSTR ENG SECOND CONSTR CO LTD
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