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Method for improving strength of foam concrete

A foamed concrete and strength technology, applied in the field of foamed concrete walls, can solve the problems of reducing the effect of coarse aggregate on the strength improvement of foamed concrete, and achieve the effects of saving resources, improving strength, preventing desizing and floating

Pending Publication Date: 2022-07-29
江苏新盈装配建筑科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When adding coarse aggregate such as ceramsite, if the particle size of ceramsite is not considered, and the ceramsite will be suspended in the upper layer of foam concrete due to its low density, the effect of coarse aggregate on foam concrete will be greatly reduced. strength enhancement

Method used

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  • Method for improving strength of foam concrete
  • Method for improving strength of foam concrete
  • Method for improving strength of foam concrete

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Experimental program
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Embodiment

[0023] A method for improving the strength of foamed concrete, comprising the following steps:

[0024] S1. Weigh the amount of cement, water, superfine powder, fly ash, admixture, ceramsite (coarse aggregate) and polypropylene fiber in proportion, and the ratio of superfine powder to fly ash is 1:1.4 -2.6;

[0025] S2. Take the ceramsite and place it in a sieve with an aperture of 5 mm for screening, and place the ceramsite with a particle size of 5 mm or more in the sieve with an aperture of 15 mm for screening, and finally obtain a particle size within the range of 5-15 mm. ceramsite;

[0026] S3. After fully stirring and mixing cement, fine sand and fly ash, add water and admixture, and stir for 3-5 minutes to form a slurry;

[0027] S4. Divide the screened ceramsite into groups for sizing, soak the ceramsite with water, and stick the fine sand on the surface of the soaked ceramsite, so that the bond between the ceramsite and the cement slurry is tighter. The ceramsite ...

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Abstract

The invention discloses a method for improving the strength of foam concrete. The method comprises the following steps: S1, weighing materials; s2, screening ceramsite; s3, preparing slurry; s4, the ceramsite is subjected to sizing; s5, equivalently adding the polypropylene fibers into the foam concrete with the formed slurry for several times, and stirring; s6, adding the treated ceramsite, stirring for 60 seconds, adding the foam concrete prepared in S7 into a stirrer, and stirring for 3-5 minutes; and S7, indoor forming is carried out, standing is carried out for 20 minutes after full filling of the slurry, screeding is carried out, standing is carried out for 2 days, and mold removing is carried out. The method has the advantage that the strength of the foam concrete is greatly improved under the condition that other advantages of the foam concrete exist.

Description

technical field [0001] The invention relates to the technical field of foam concrete walls, in particular to a method for improving the strength of foam concrete. Background technique [0002] Foamed concrete has been widely used as a new type of wall material as a lightweight concrete. The wall made of foamed concrete not only has the advantages of light weight, good thermal insulation performance and low cost. And the development of foamed concrete is conducive to saving resources and protecting the environment, but compared with other concretes, foamed concrete has the defects of low strength and easy cracking, which greatly limits the development of foamed concrete. [0003] At present, the most common methods to improve the strength of foamed concrete include adjusting the mixing ratio of foamed concrete, adding coarse aggregates such as ceramsite, and improving curing conditions. These methods have the following disadvantages: [0004] When adding coarse aggregates ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B16/06C04B18/02C04B18/08C04B20/10C04B38/00
CPCC04B28/00C04B18/08C04B18/023C04B16/0633C04B20/1077C04B38/00C04B2201/50C04B2201/20C04B2103/302C04B2103/14C04B2103/48C04B20/1066C04B38/0067
Inventor 孙君伟刘文龙张艳龙
Owner 江苏新盈装配建筑科技有限公司
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