Sulfate-resistant concrete and preparation method thereof

A technology of anti-sulfate and anti-sulfate cement, applied in the field of concrete preparation, can solve the problems of shortening the life of buildings, insufficient attention to durability, etc., and achieves enhanced impermeability, strong sulfate corrosion resistance, and improved compressive performance. Effect

Active Publication Date: 2018-09-28
石家庄金隅混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The two basic properties of concrete are strength and durability. Due to insufficient understanding or insufficient attention to durability, the life of buildings is greatly shortened

Method used

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  • Sulfate-resistant concrete and preparation method thereof
  • Sulfate-resistant concrete and preparation method thereof
  • Sulfate-resistant concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: a kind of concrete for long wall engineering, characterized in that it is made of the following components in parts by weight: 60 parts of sulfate-resistant cement, 40 parts of mineral admixture, 50 parts of washed sand, mechanism 40 parts of sand, 110 parts of coarse aggregate, 4 parts of polypropylene fiber, 2 parts of carboxymethyl cellulose, 70 parts of mixing water, 0.5 part of absolute ethanol, 2 parts of SBT-RMA concrete preservative, and 1 part of admixture.

[0024] The mineral admixture is made by mixing 20 parts of fly ash and 30 parts of granulated blast furnace slag powder. The coarse aggregate is made by mixing 80 parts of crushed stone and 20 parts of pebble. 5-10mm, the admixture is composed of 9 parts of organic synergist, 5 parts of retarder, 10 parts of titanium dioxide, and 3 parts of waterproofing agent.

[0025] The organic synergist consists of 5 parts of silane coupling agent, 40 parts of epoxy resin powder, 5 parts of polyether typ...

Embodiment 2

[0031] Embodiment 2: a kind of concrete for long wall engineering is characterized in that it is made of the following components in parts by weight: 70 parts of sulfate-resistant cement, 30 parts of mineral admixture, 90 parts of washed sand, mechanism 80 parts of sand, 160 parts of coarse aggregate, 6 parts of polypropylene fiber, 3 parts of carboxymethyl cellulose, 90 parts of mixing water, 0.8 part of absolute ethanol, 3 parts of SBT-RMA concrete preservative, and 2 parts of admixture.

[0032] The mineral admixture is made by mixing 40 parts of fly ash and 50 parts of granulated blast furnace slag powder.

[0033] Coarse aggregate is made by mixing 120 parts of crushed stone and 30 parts of pebble. The particle size of crushed stone is 5-20mm, and the particle size of pebble is 5-10mm. 7 parts, 10-15 parts of titanium dioxide, 3-5 parts of waterproofing agent,

[0034] The organic synergist consists of 5 parts of silane coupling agent, 40 parts of epoxy resin powder, 5 p...

Embodiment 3

[0035] Embodiment three: a kind of concrete for long wall engineering, characterized in that it is made of the following components in parts by weight: 75 parts of sulfate-resistant cement, 35 parts of mineral admixture, 70 parts of washed sand, mechanism 60 parts of sand, 130 parts of coarse aggregate, 5 parts of polypropylene fiber, 2.5 parts of carboxymethyl cellulose, 80 parts of mixing water, 0.7 part of absolute ethanol, 2.5 parts of SBT-RMA concrete preservative, and 1.5 parts of admixture. The preparation method is the same as in Example 1.

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Abstract

The invention belongs to the technical field of concrete preparation, and provides a sulfate-resistant concrete. The sulfate-resistant concrete is characterized by being prepared from, by weight, 60-70 parts of sulfate-resistant cement, 30-40 parts of mineral admixture, 50-90 parts washed sand, 40-80 parts of machine-made sand, 110-160 parts of coarse aggregate, 4-6 parts of polypropylene fiber, 2-3 parts of carboxymethylcellulose, 70-90 parts of slurry forming water, 0.5-0.8 part of anhydrous ethanol, 2-3 parts of SBT-RMA concrete corrosion inhibitor and 1-2 parts of additive. The sulfate-resistant concrete solves the problems that the damage of corrosion to reinforced concrete is very serious, and sulfate-resistant concrete in the market is poor in anti-corrosion performance and short inservice life.

Description

technical field [0001] The invention belongs to the technical field of concrete preparation, and relates to a sulfate-resistant concrete and a preparation method thereof. Background technique [0002] The two basic properties of concrete are strength and durability. Due to insufficient awareness or attention to durability, the lifespan of buildings is greatly shortened. Corrosion damages reinforced concrete very seriously. With the development of China's social economy and the progress of urban construction technology, the research and development of sulfate-resistant concrete has great practical value. Contents of the invention [0003] The invention proposes a sulfate-resistant concrete and a preparation method thereof, which solve the above-mentioned technical problems. [0004] A sulfate-resistant concrete is characterized in that it is made of the following components in parts by weight: [0005] 60-70 parts of sulfate-resistant cement, 30-40 parts of mineral admixt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B111/20
CPCC04B28/02C04B2111/00293C04B2111/2015C04B2201/50C04B18/12C04B14/06C04B18/02C04B16/0633C04B24/383C04B2103/60C04B14/305C04B24/42C04B24/281C04B2103/408C04B24/023C04B2103/302C04B24/2652C04B24/122C04B24/18C04B24/06
Inventor 王刚杨建宁周金金杜雪刚息雪立刘琼瑶隗功磊张舒栋宋龙高少飞刘雅文李海增艾华
Owner 石家庄金隅混凝土有限公司
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