Anti-crack concrete admixture

A concrete admixture and mixture technology, applied in the field of concrete admixtures, can solve the problems of crack resistance and poor waterproof performance of concrete, and achieve the effects of excellent crack resistance, fire resistance and strength

Inactive Publication Date: 2019-11-22
SHANXI HUANGTENG CHEM
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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 solve the shortcomings of concrete crack resistance and poor waterproof performance in the prior art, and propose an anti-crack concrete admixture

Method used

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  • Anti-crack concrete admixture

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Effect test

Embodiment 1

[0038] The invention proposes an anti-cracking concrete admixture, comprising the following raw materials by weight: 30 parts of polypropylene fibers, 5 parts of fly ash, 3 parts of mica powder, 1 part of nano-silicon dioxide, 2 parts of sulfoaluminate clinker, 1 part of magnesium oxide, 5 parts of methyl cellulose, 10 parts of acrylate, 5 parts of polyurethane, 7 parts of zinc stearate, 2 parts of ethylene glycol, 1 part of triethanolamine, 1 part of sodium lactate parts, 0.5 part of lignosulfonate, 0.5 part of tributyl ester, 5 parts of ferric chloride, 1 part of aluminum sulfate, 1 part of calcium chloride;

[0039] Its preparation method comprises the following steps:

[0040] S1: Put polypropylene fiber, fly ash, mica powder, nano-silica, sulfoaluminate clinker, magnesium oxide, methyl cellulose, acrylate, polyurethane and zinc stearate into the mixing equipment, Carry out stirring and mixing, the rotating speed of the stirring equipment is 700r / min, the stirring time is...

Embodiment 2

[0045] The invention proposes an anti-cracking concrete admixture, comprising the following raw materials by weight: 34 parts of polypropylene fibers, 6 parts of fly ash, 4 parts of mica powder, 2 parts of nano-silica, 3 parts of sulfoaluminate clinker, 2 parts of magnesium oxide, 6 parts of methyl cellulose, 11 parts of acrylate, 6 parts of polyurethane, 8 parts of zinc stearate, 3 parts of ethylene glycol, 2 parts of triethanolamine, 2 parts of sodium lactate parts, 1 part of lignosulfonate, 1 part of tributyl ester, 6 parts of ferric chloride, 2 parts of aluminum sulfate, 2 parts of calcium chloride;

[0046] Its preparation method comprises the following steps:

[0047] S1: Put polypropylene fiber, fly ash, mica powder, nano-silica, sulfoaluminate clinker, magnesium oxide, methyl cellulose, acrylate, polyurethane and zinc stearate into the mixing equipment, Carry out stirring and mixing, the rotating speed of the stirring equipment is 720r / min, the stirring time is 11min,...

Embodiment 3

[0052] The invention proposes an anti-cracking concrete admixture, comprising the following raw materials by weight: 38 parts of polypropylene fibers, 7 parts of fly ash, 5 parts of mica powder, 3 parts of nano-silicon dioxide, 4 parts of sulfoaluminate clinker, 3 parts of magnesium oxide, 7 parts of methyl cellulose, 12 parts of acrylate, 7 parts of polyurethane, 9 parts of zinc stearate, 4 parts of ethylene glycol, 3 parts of triethanolamine, 3 parts of sodium lactate parts, 2 parts of lignosulfonate, 2 parts of tributyl ester, 7 parts of ferric chloride, 3 parts of aluminum sulfate, 3 parts of calcium chloride;

[0053] Its preparation method comprises the following steps:

[0054] S1: Put polypropylene fiber, fly ash, mica powder, nano-silica, sulfoaluminate clinker, magnesium oxide, methyl cellulose, acrylate, polyurethane and zinc stearate into the mixing equipment, Carry out stirring and mixing, the rotating speed of the stirring equipment is 740r / min, the stirring tim...

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Abstract

The invention belongs to the field of concrete admixtures, particularly an anti-crack concrete admixture. The problems that existing concrete is poor in crack resistance and waterproof performance aresolved. Proposed now is the following scheme, the admixture comprises the following raw materials in parts by weight: 30 to 50 parts of polypropylene fiber, 5-10 parts of fly ash, 3 to 7 parts of mica powder, 1 to 5 parts of nano silicon dioxide, 2 to 6 parts of sulphoaluminate clinker, 1-4 parts of magnesium oxide, 5-10 parts of methyl cellulose, 10-15 parts of acrylate, 5-10 parts of polyurethane, 7-11 parts of zinc stearate, 2-7 parts of ethylene glycol, 1-6 parts of triethanolamine, 1-5 parts of sodium lactate, 0.5-3 parts of lignosulfonate, 0.5-3 parts of tributyl ester, 5-10 parts of ferric chloride, 1-5 parts of aluminum sulfate and 1-5 parts of calcium chloride. The anti-crack concrete admixture has excellent crack resistance and waterproof performance, and the preparation methodis simple.

Description

technical field [0001] The invention relates to the field of concrete admixtures, in particular to an anti-cracking concrete admixture. Background technique [0002] Concrete refers to an artificial stone made of cement as the main cementing material, mixed with water, sand, stone, and if necessary, chemical admixtures and mineral admixtures, mixed in appropriate proportions, uniformly stirred, compacted, and cured and hardened. Concrete is mainly divided into two stages and states: the plastic state before setting and hardening, that is, fresh concrete or concrete mixture; the hard state after hardening, that is, hardened concrete or concrete. The strength grade of concrete is divided by the standard value of cube compressive strength. The strength grade of ordinary concrete in China is divided into 14 grades: C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75 and C80 . [0003] The existing concrete has poor crack resistance and waterproof performance, so we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
CPCC04B40/0039C04B16/0633C04B18/08C04B14/20C04B14/062C04B7/32C04B22/066C04B24/383C04B24/045C04B24/282C04B24/085C04B24/02C04B24/122C04B24/06C04B24/18C04B22/12C04B22/148C04B22/124
Inventor 孙肖武耿秉政竹鹏翔李阳杰
Owner SHANXI HUANGTENG CHEM
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