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Anti-freezing anti-seepage anti-cracking concrete and preparation method thereof

A concrete and mixture technology, applied in the field of concrete, can solve the problems of low crack resistance, frost resistance and impermeability, etc., and achieve the effects of increasing the hydration reaction rate, increasing the specific surface area, and improving the frost resistance performance

Active Publication Date: 2019-09-20
西安新意达建筑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the existing hollow fiber concrete sandwich straw compressed brick blocks have good thermal insulation, heat insulation and sound insulation properties, their crack resistance, frost resistance and impermeability are not high.

Method used

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  • Anti-freezing anti-seepage anti-cracking concrete and preparation method thereof
  • Anti-freezing anti-seepage anti-cracking concrete and preparation method thereof
  • Anti-freezing anti-seepage anti-cracking concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1-3

[0040] In the preparation example 1-3, nano-silica is selected from the nano-silica sold by Nanjing Baokete New Material Co., Ltd. with the article number IC010, and vinyltrimethoxysilane is selected from the article number sold by Nanjing Ron Silicon Material Co., Ltd. The vinyltrimethoxysilane and sodium dodecylbenzenesulfonate of KH-171 are selected from the sodium dodecylbenzenesulfonate sold by Guangzhou Zhixin Trading Co., Ltd. with the item number P-70.

preparation example 1

[0041] Preparation example 1: (1) 1 kg of rubber particles with a particle size of 250 μm was placed in 3 kg of a sodium hypochlorite solution with a mass concentration of 8%, soaked for 30 minutes, washed with water until neutral, and dried under an infrared lamp;

[0042] (2) 5kg nano silicon dioxide is dispersed in 20kg water, add the rubber particle that 0.6kg vinyltrimethoxysilane, 0.1kg sodium dodecylbenzene sulfonate and step (1) make, after stirring, in Drying at room temperature until the moisture content is lower than 5%, the modified rubber particles are obtained.

preparation example 2

[0043] Preparation example 2: (1) 2 kg of rubber particles with a particle size of 450 μm were placed in 6 kg of a sodium hypochlorite solution with a mass concentration of 9%, soaked for 45 minutes, washed with water until neutral, and dried under an infrared lamp;

[0044] (2) 8kg nano silicon dioxide is dispersed in 25kg water, add the rubber particle that 0.7kg vinyltrimethoxysilane, 0.2kg sodium dodecylbenzene sulfonate and step (1) make, after stirring, in Drying at room temperature until the moisture content is lower than 5%, the modified rubber particles are obtained.

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Abstract

The invention discloses anti-freezing anti-seepage anti-cracking concrete and a preparation method thereof, wherein the anti-freezing anti-seepage anti-cracking concrete comprises, by weight, 300-315 parts of cement, 340-360 parts of medium sand, 430-450 parts of coarse sand, 800-850 parts of broken stone, 135-160 parts of fly ash, 50-60 parts of mineral powder, 160-175 parts of water, 5-10 parts of a water reducing agent, 1-5 parts of an air entraining agent, 5-10 parts of water glass, 5-10 parts of modified polypropylene fiber, 50-55 parts of modified rubber particles, and 55-70 parts mixed stone powder, wherein the mixed stone powder is prepared by carrying out drying treatment and grinding treatment on dolomite, slag, ceramsite and sericite powder according to a mass ratio of 1:0.5-0.8:1.1-1.5:0.6-0.9. According to the present invention, the anti-freezing anti-seepage anti-cracking concrete has advantages of strong freezing resistance, good impermeability, good crack resistance and high strength.

Description

technical field [0001] The invention relates to the technical field of concrete, more specifically, it relates to a frost-resistant, seepage-resistant and crack-resistant concrete and a preparation method thereof. Background technique [0002] Concrete generally refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral admixtures when necessary, mixed in an appropriate proportion, uniformly stirred, densely formed and cured . As a building material with a large amount and a wide range of use in the world, concrete has been widely developed in various countries and regions for its good mechanical properties, economy and adaptability to the environment. put forward higher requirements. As the most commonly used structural form in the field of civil engineering, concrete structures have extremely complex construction and service environments. The durability of concrete in harsh environments...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/76C04B2201/50C04B2201/52C04B14/02C04B14/06C04B18/08C04B18/12C04B18/22C04B16/0633C04B12/04C04B2103/302C04B2103/304C04B14/28C04B14/20C04B18/06C04B18/027
Inventor 豆伟魏西林冯建龙安杰
Owner 西安新意达建筑制品有限公司
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