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Bare concrete

A technology of clear-water concrete and water-reducing agent, which is applied in the field of building materials, can solve the problems that clear-water concrete is easily corroded by rainwater, shortens the service life of clear-water concrete, etc., and achieves favorable cross-linking network, easy mixing and uniform dispersion, and improved corrosion resistance Effect

Inactive Publication Date: 2019-03-22
武汉城开新兴建材有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the surface of fair-faced concrete no longer has any materials such as painting, tiles, and stones, it is easy to be soaked or deteriorated by rainwater, and rainwater is generally acidic, so that clear-water concrete is easily corroded by rainwater, thereby shortening the life of clear-water concrete. service life, there is still room for improvement

Method used

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  • Bare concrete

Examples

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Comparison scheme
Effect test

Embodiment 1

[0060] A kind of fair-faced concrete, comprises the component of following mass parts:

[0061] Water 7.5kg; Portland cement 15kg; medium sand 45kg; crushed stone 60kg; water reducing agent 0.75kg; carbon fiber 3kg; rubber emulsion 10.5kg; silane coupling agent 3.75kg.

[0062] The preparation method of fair-faced concrete is as follows:

[0063] (1) In the cement mixer, under normal temperature conditions, add 15kg of Portland cement and stir at a speed of 200r / min;

[0064] (2) While stirring, add 7.5kg of water, 0.75kg of water reducer, 3kg of carbon fiber, 10.5kg of rubber emulsion, and 3.75kg of silane coupling agent, and stir to obtain a premix;

[0065] (3) Add 45kg of medium sand and 60kg of crushed stone to the sand and gravel mixer at normal temperature, stir at a speed of 200r / min, and obtain aggregate after stirring evenly;

[0066] (4) In the concrete mixer, under normal temperature conditions, add the premix and aggregate, and stir at a speed of 200r / min;

[0...

Embodiment 2

[0071] A kind of fair-faced concrete, comprises the component of following mass parts:

[0072] 8.75kg of water; 17.5kg of Portland cement; 52.5kg of medium sand; 70kg of gravel; 0.87kg of water reducing agent; 3.5kg of carbon fiber; 12.25kg of rubber emulsion;

[0073] The preparation method of fair-faced concrete is as follows:

[0074] (1) In the cement mixer, under normal temperature conditions, add 17.5kg of Portland cement and stir at a speed of 200r / min;

[0075] (2) Add 8.75kg of water, 0.87kg of water reducer, 3.5kg of carbon fiber, 12.25kg of rubber emulsion, and 4.38kg of silane coupling agent while stirring, and stir to obtain a premix;

[0076] (3) Add 52.5kg of medium sand and 70kg of gravel to the sand mixer at room temperature, and stir at a speed of 200r / min to obtain aggregate;

[0077] (4) In the concrete mixer, under normal temperature conditions, add the premix and aggregate, and stir at a speed of 200r / min;

[0078] (5) Brush the release agent on the m...

Embodiment 3

[0082] A kind of fair-faced concrete, comprises the component of following mass parts:

[0083] 10kg of water; 20kg of Portland cement; 60kg of medium sand; 80kg of gravel; 1kg of water reducing agent; 4kg of carbon fiber; 14kg of rubber emulsion; 5kg of silane coupling agent.

[0084] The preparation method of fair-faced concrete is as follows:

[0085] (1) In the cement mixer, under normal temperature conditions, add 20kg of Portland cement and stir at a speed of 200r / min;

[0086] (2) Add water 10kg, water reducer 1kg, carbon fiber 4kg, rubber emulsion 14kg, silane coupling agent 5kg while stirring, after stirring evenly, obtain the premix;

[0087] (3) Add 60kg of medium sand and 80kg of crushed stone to the sand and gravel mixer at normal temperature, and stir at a speed of 200r / min to obtain aggregate after stirring evenly;

[0088] (4) In the concrete mixer, under normal temperature conditions, add the premix and aggregate, and stir at a speed of 200r / min;

[0089] (...

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Abstract

The invention relates to the field of building materials, aims at solving the problem that bare concrete is prone to be corroded by rainwater and provides bare concrete. The bare concrete is preparedfrom the following ingredients in parts by mass: 7.5 to 10 parts of water, 15 to 20 parts of Portland cement, 45 to 60 parts of sand, 60 to 80 parts of stone, 0.75 to 1 part of a water reducing agent,3 to 4 parts of carbon fiber, 10.5 to 14 parts of rubber emulsion and 3.75 to 5 parts of a silane coupling agent. The carbon fiber is added into the bare concrete; the carbon fiber has the characteristics of soft outside and rigid inside, and the carbon fiber further has outstanding corrosion resistance; thus, corrosion resistance of the bare concrete is improved, and prolongation of service lifeof the bare concrete is facilitated.

Description

technical field [0001] The invention relates to the field of building materials, more specifically, it relates to a kind of fair-faced concrete. Background technique [0002] Fair-faced concrete is a kind of expressive technique of architectural modernism, and it is also called decorative concrete because of its great decorative effect. Fair-faced concrete is a way of expressing concrete without makeup. After the concrete is poured, there is no longer any painting, tiles, stones and other materials. [0003] However, since the surface of fair-faced concrete no longer has any materials such as painting, tiles, and stones, it is easy to be soaked or deteriorated by rainwater, and rainwater is generally acidic, so that clear-water concrete is easily corroded by rainwater, thereby shortening the life of clear-water concrete. There is still room for improvement. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20
CPCC04B28/04C04B2201/50C04B2111/2015C04B14/06C04B14/02C04B14/386C04B2103/302C04B24/24C04B24/42
Inventor 胡林刘栋卞周宏
Owner 武汉城开新兴建材有限责任公司
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