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Light aggregate concrete mould wall body construction material and its production technology

A concrete formwork and lightweight aggregate technology, which is applied in the direction of solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of unreasonable raw material structure, low compressive strength and high price of formwork wall components

Inactive Publication Date: 2007-07-18
刘泳霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a lightweight aggregate concrete formwork wall component material and its production process, the formwork wall made of the two-component batching of the outer surface layer and the inner layer prepared separately, and made by synchronous secondary distribution It solves the problems of low compressive strength, unreasonable raw material structure, high water absorption and high price of formwork wall components. It is a high-strength, light-weight, easy-to-construct, wide-ranging material, low cost, reasonable structure and good performance. Formwork wall member material

Method used

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  • Light aggregate concrete mould wall body construction material and its production technology
  • Light aggregate concrete mould wall body construction material and its production technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) The weight ratio of the outer surface layer material is as follows:

[0058] Cement: 42.5# Portland cement 35%, light aggregate: fly ash ceramsite 35%, admixture: fly ash 10.5%, auxiliary material A: vinyl acetate copolymer (EVA) 1.15%, auxiliary material B: poly Propylene (PP) fiber 0.1%, additive: naphthalene superplasticizer (JFA) 0.25%, water 18%.

[0059] Fly ash ceramsite requires a particle size of less than φ3.6mm, and requires a 2.0mm square hole sieve residue to be greater than 70%, a 1.0mm square hole sieve residue to be greater than 90%, and the fly ash requires an apparent density of less than 2600kg / m3 , The specific surface area is greater than 300m2 / kg, polypropylene (PP) fiber requires a length of 8-12mm and a diameter of 2-5μm.

[0060] (2) The weight ratio of the inner layer materials of the components is as follows:

[0061] Cement: 42.5# Portland cement 56%, ultra-light aggregate: polystyrene foam 3.4%, admixture: fly ash 11%, auxiliary materi...

Embodiment 2

[0074] (1) The weight ratio of the outer surface layer material is as follows:

[0075] Cement: 42.5# Portland cement 37%, light aggregate: pumice 34%, admixture: fly ash 6% and slag fine powder 3%, auxiliary material A: vinyl acetate copolymer (EVA) 1.45%, auxiliary material B : Polyester fiber (PE) 0.15%, additives: naphthalene superplasticizer (JFA) 0.4%, water 18%.

[0076] The particle size of pumice is required to be less than φ3.6mm, and the sieve allowance of 2.0mm square hole sieve is required to be greater than 70%, and the cumulative sieve allowance of 1.0mm square hole sieve is greater than 90%. 300m2 / kg, polyester fiber (PE) requires a length of 8-12mm and a diameter of 2-5μm.

[0077] (2) The weight ratio of the inner layer materials of the components is as follows:

[0078] Cement: 42.5# Portland cement 58%, ultra-light aggregate: expanded perlite 3%, admixture: fly ash 5% and slag fine powder 5%, auxiliary material C: polyvinyl alcohol (PVA) 1.72%, Excipient...

Embodiment 3

[0091] (1) The weight ratio of the outer surface layer material is as follows:

[0092] Cement: 42.5# Portland cement 33%, light aggregate: porous volcanic rock particles 36%, admixture: fly ash 10.28%, auxiliary material A: vinyl acetate copolymer (EVA) 1.2%, auxiliary material B: polypropylene ( PP) fiber 0.12%, additives: naphthalene superplasticizer (JFA) 0.4%, water 19%.

[0093] The particle size of porous volcanic rock is required to be less than φ3.6mm, and the sieve residue of 2.0mm square hole is required to be greater than 70%, the cumulative residue of 1.0mm square hole sieve is greater than 90%, and the apparent density of fly ash is required to be less than 2600kg / m The surface area is greater than 300m2 / kg, and the polypropylene (PP) fiber requires a length of 8-12mm and a diameter of 2-5μm.

[0094] (2) The weight ratio of the inner layer materials of the components is as follows:

[0095] Cement: 42.5# Portland cement 53%, ultra-light aggregate: polystyrene ...

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Abstract

This invention involves a wall component material of lightweight concrete formwork and production technology. It has two-component mixtures of separately prepared external surface and inner layer, through synchronous secondary cloth produce shell wall components; The outer surface layer of material weight ratio is as follows : Cement : 33 ~ 37.65%. Lightweight Aggregate : 34 ~ 37%, admixture : 9 ~ 11.5%, excipients A : 1.0 ~ 1.5%, supplies B : 0.10 to 0.15%, additives: 0.25 ~ 0.45 %, water : 18 ~ 22.65%; inner material component of the weight ratio is as follows : Cement : 53 ~ 58.0%, ultra-lightweight aggregate : 3.1 ~ 3.53%, the admixture : 10.5 ~ 12%, supplies C : 1.2 ~ 2.0%, supplies B : 0.05 ~ 0.08%, additives : 0.15 ~ 0.20%, water : 27 to 32%; it is a high strength, light weight, simple in construction, low cost, reasonable structure, good performance wall component materials.

Description

technical field [0001] The invention relates to a formwork wall component material and a production process thereof. Background technique [0002] The traditional wall material in our country is clay bricks. Because the production of clay bricks destroys land resources, pollutes the environment, has poor thermal insulation performance, and wastes energy, the state repeatedly prohibits its production and use. Since the 1990s, walls of various concrete structures have developed rapidly in China, and there have been ash cement bricks, various unburned bricks, shale bricks, aerated concrete blocks, light aggregate concrete hollow blocks, Various new wall materials such as concrete hollow blocks, paper-faced gypsum boards, gypsum formwork components, and composite wall panels (GRC). [0003] These new wall materials have played a certain role in promoting the prohibition and restriction of the production of clay bricks. Neither can be an ideal substitute material for clay brick...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B14/04C04B16/06
CPCC04B28/02Y02W30/91C04B14/12C04B14/26C04B16/0633C04B18/08C04B18/141C04B24/226C04B24/2623C04B14/06C04B14/16C04B16/0683C04B18/12C04B2103/302C04B14/185C04B18/082C04B16/08C04B16/082
Inventor 万国良刘泳霞
Owner 刘泳霞
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