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High-strength anti-cracking thermal construction concrete material and preparing method thereof

A technology for concrete and construction, which is applied in the field of high-strength anti-cracking and thermal insulation construction concrete materials and its preparation field, can solve the problems of dry shrinkage rate and creep increase of hardened concrete, reduce consumption, and overcome the difficulty in controlling slump. , the effect of high compressive strength and flexural strength

Inactive Publication Date: 2018-07-10
安徽嘉中金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires adding more water when preparing concrete to increase its fluidity, which leads to an increase in dry shrinkage and creep of hardened concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] A preparation method of a high-strength anti-cracking and heat-preserving concrete material for buildings, comprising the steps of:

[0023] S1. Mix 6-10 parts of quartz powder, 9-14 parts of acrylamide, 3-5 parts of calcium silicate, 2-4 parts of triethanolamine, 1-3 parts of polyacrylic acid, 3-5 parts of sodium hexametaphosphate and twelve Add 2-6 parts of sodium alkylbenzene sulfonate to water and mix and stir to prepare the admixture;

[0024] S2, 23-28 parts of magnesium oxide, 15-20 parts of graphite tailings, 20-30 parts of nanoporous silicon particles, 12-14 parts of expanded clinker, 20-24 parts of recycled building aggregate and 10-15 parts of silica fume Crush into powder, pass through a 200-220 mesh sieve, and mix evenly;

[0025] S3. Mix 85-100 parts of cement, 10-20 parts of fly ash, 20-25 parts of hydroxypropyl methylcellulose, 10-20 parts of polycarboxylate superplasticizer, and 5-10 parts of redispersible latex powder , Add 8-15 parts of admixture an...

Embodiment 1

[0028] A preparation method of a high-strength anti-cracking and heat-preserving concrete material for buildings, comprising the steps of:

[0029] S1, 8 parts of quartz powder, 12 parts of acrylamide, 4 parts of calcium silicate, 3 parts of triethanolamine, 2 parts of polyacrylic acid, 4 parts of sodium hexametaphosphate and 4 parts of sodium dodecylbenzenesulfonate are mixed with water, Prepared admixture;

[0030] S2. Grinding 25 parts of magnesium oxide, 18 parts of graphite tailings, 24 parts of nanoporous silicon particles, 12 parts of expanded clinker, 22 parts of recycled building aggregate and 14 parts of silica fume into powder, passing through a 220-mesh sieve, and mixing evenly ;

[0031] S3. Mix 85-100 parts of cement, 18 parts of fly ash, 22 parts of hydroxypropyl methylcellulose, 15 parts of polycarboxylate superplasticizer, 8 parts of redispersible latex powder, 11 parts of admixture and appropriate amount of water Add to the mixer and stir for 12min, then ad...

Embodiment 2

[0034] A preparation method of a high-strength anti-cracking and heat-preserving concrete material for buildings, comprising the steps of:

[0035]S1, 10 parts of quartz powder, 14 parts of acrylamide, 5 parts of calcium silicate, 4 parts of triethanolamine, 3 parts of polyacrylic acid, 5 parts of sodium hexametaphosphate and 6 parts of sodium dodecylbenzenesulfonate were mixed with water, Prepared admixture;

[0036] S2. Grinding 28 parts of magnesium oxide, 20 parts of graphite tailings, 30 parts of nanoporous silicon particles, 14 parts of expanded clinker, 24 parts of recycled building aggregate and 15 parts of silica fume into powder, passing through a 220-mesh sieve, and mixing evenly ;

[0037] S3. Add 100 parts of cement, 20 parts of fly ash, 25 parts of hydroxypropyl methylcellulose, 20 parts of polycarboxylate superplasticizer, 10 parts of redispersible latex powder, 15 parts of admixture and an appropriate amount of water into the Stir in a mixer for 15 min, then ...

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Abstract

The invention discloses a high-strength anti-cracking thermal construction concrete material and a preparing method thereof. The material is prepared from, by weight, 85-100 parts of cement, 20-30 parts of magnesium oxide, 10-25 parts of graphite tailings, 15-35 parts of nanometer porous silicon particles, 10-15 parts of expansion clinker, 18-25 parts of recycled building aggregate, 10-20 parts ofcoal ash, 20-25 parts of hydroxypropyl methyl cellulose, 10-15 parts of silica fume, 10-20 parts of polycarboxylic acid efficient water reducer, 5-10 parts of redispersible powder, 8-15 parts of additive and a proper volume of water. By effectively matching cement, magnesium oxide, graphite tailings, nanometer porous silicon particles, expansion clinker, recycled building aggregate, coal ash, hydroxypropyl methyl cellulose, silica fume and polycarboxylic acid efficient water reducer, the reinforced concrete which has high compressive strength and breaking strength, can be well combined with existing concrete and is not prone to disengagement, excellent in overall performance and quite suitable for concrete work damage positions is obtained; the production process is simple.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a high-strength anti-crack and heat-retaining concrete material for construction and a preparation method thereof. Background technique [0002] With the rapid development of the economy, in many big cities in my country, the waste generated by the construction industry has become a public hazard. These wastes not only cause serious damage to the environment, but also compete with human beings for living space, seriously affecting the sustainable development of the country. Therefore, it is imminent to develop new technologies to reduce, recycle and utilize construction waste. [0003] Construction waste generally consists of concrete fragments, expanded clinker bricks and tiles, sand and dust, wood chips, plastic and waste paper, scrap metal, etc. Concrete fragments are usually the largest component of construction waste, and crushed and screened concrete fragments...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B14/06C04B24/124C04B14/043C04B24/122C04B24/2641C04B22/16C04B24/20C04B14/304C04B18/12C04B18/16C04B18/146C04B18/08C04B24/383C04B2103/302C04B2103/0057C04B14/36C04B20/008C04B2103/0068
Inventor 张如才
Owner 安徽嘉中金属材料有限公司
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