Concrete additive and preparation method

An additive and concrete technology, which is applied in the field of additives and preparation, concrete additives and preparation, can solve the problems of shortened concrete life and reduced concrete strength, and achieve the effects of increased strength, improved frost resistance, increased strength and life

Inactive Publication Date: 2018-12-07
徐州和合新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the strength of concrete is reduced in low temperature environment, the life of concrete buildings is shortened, so an additive is needed to improve the strength and life of concrete in low temperature environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A concrete additive, comprising the following raw materials in parts by weight: 40 parts of bentonite, 35 parts of coal gangue, 15 parts of calcium chloride, 15 parts of polydimethylsiloxane, 8 parts of melamine, 5 parts of methyl silicone oil, Titanium 2 parts.

[0015] The preparation method of this concrete additive comprises the following steps:

[0016] (1) Mix bentonite, coal gangue, and calcium chloride, pass through 200 mesh, and bake at 200°C for 40 minutes;

[0017] (2) Add polydimethylsiloxane, melamine, methyl silicone oil, and titanium trioxide, and stir well to mix.

Embodiment 2

[0019] A concrete additive, comprising the following raw materials in parts by weight: 50 parts of bentonite, 20 parts of coal gangue, 10 parts of calcium chloride, 20 parts of polydimethylsiloxane, 15 parts of melamine, 10 parts of methyl silicone oil, 6 parts of titanium.

[0020] The preparation method of this concrete additive comprises the following steps:

[0021] (1) Mix bentonite, coal gangue, and calcium chloride, pass through 200 mesh, and bake at 400°C for 30 minutes;

[0022] (2) Add polydimethylsiloxane, melamine, methyl silicone oil, and titanium trioxide, and stir well to mix.

Embodiment 3

[0024] A concrete additive, comprising the following raw materials in parts by weight: 45 parts of bentonite, 28 parts of coal gangue, 13 parts of calcium chloride, 18 parts of polydimethylsiloxane, 11 parts of melamine, 8 parts of methyl silicone oil, trioxide Dititanium 4 parts.

[0025] The preparation method of this concrete additive comprises the following steps:

[0026] (1) Mix bentonite, coal gangue, and calcium chloride, pass through 200 mesh, and bake at 300°C for 35 minutes;

[0027] (2) Add polydimethylsiloxane, melamine, methyl silicone oil, and titanium trioxide, and stir well to mix.

[0028] The additives in the examples are added to the concrete, and the strength of the prepared concrete block is increased by 10-20% at -10°C to -40°C.

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PUM

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Abstract

The invention discloses a concrete additive. The concrete additive contains the following raw materials in parts by weight: 40-50 parts of bentonite, 20-35 parts of coal gangue, 10-15 parts of calciumchloride, 15-20 parts of polydimethylsiloxane, 8-15 parts of melamine, 5-10 parts of methyl silicone oil and 2-6 parts of titanium sesquioxide. A preparation method of the concrete additive comprisesthe following steps: (1) mixing bentonite, coal gangue and calcium chloride, sieving by virtue of a 200-mesh sieve, and baking at 200-400 DEG C for 30-40 minute; and (2) adding polydimethylsiloxane,melamine, methyl silicone oil and titanium sesquioxide, and adequately stirring and mixing. According to the concrete additive, the freezing resistance of the concrete can be effectively improved, thestrength of the concrete in a low-temperature environment is improved, and the service life of the concrete in the low-temperature environment is prolonged.

Description

technical field [0001] The invention relates to an additive and a preparation method, in particular to a concrete additive and a preparation method, and belongs to the field of building material additives. Background technique [0002] Nowadays, the vast majority of buildings, roads, bridges, embankments, etc. use concrete as their main material. Since concrete buildings are often subjected to changing conditions such as wind, sun, high temperature and low temperature, their performance in extreme environments needs to be protected or improved. Since the strength of concrete is reduced in low temperature environment, the life of concrete building is shortened, so an additive is needed to improve the strength and life of concrete in low temperature environment. Contents of the invention [0003] The purpose of the present invention is to provide a concrete additive and a preparation method, which can effectively improve the frost resistance of concrete, thereby improving t...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B103/60
CPCC04B40/0039C04B2103/601C04B14/104C04B18/12C04B22/124C04B24/42C04B24/128C04B14/305
Inventor 孙金梅
Owner 徐州和合新型建材有限公司
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