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Low-chromatic aberration concrete

A technology of concrete and concrete synergist, which is applied in the field of construction concrete, which can solve the problems of aesthetics reduction, concrete color difference, etc., and achieve the effects of easy decontamination, reduced ripples, and improved workability

Active Publication Date: 2018-11-09
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in actual construction, color difference often occurs on the surface of concrete, which greatly reduces its aesthetics

Method used

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  • Low-chromatic aberration concrete

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: a kind of low chromatic aberration concrete, by weight, comprises the following components:

[0017] 160 parts of cement, 50 parts of mineral powder, 70 parts of fly ash, 1000 parts of stone, 90 parts of sand, 300 parts of water, 20 parts of film former, 8 parts of water reducing agent, and 2 parts of CTF concrete synergist.

[0018] Cement grades can be selected as strength grades of 32.5, 32.5R, 42.5 or 42.5R, and 32.5R cement should be selected in consideration of cost; It is 17-19μm; the particle size of the stone is 15-25mm, the fineness modulus of the sand is 2.2-1.6, and the average particle size is 0.35-0.25mm, that is, fine sand.

[0019] The film-forming agent is water-based polyurethane, and the water-reducing agent is a water-soluble resin sulfonate water-reducing agent. The CTF concrete synergist adopts the CTF concrete synergist of Guangzhou Sanjun Building Materials Technology Co., Ltd.

[0020] The parameters of the above-mentioned compon...

Embodiment 2

[0021] Embodiment 2: a kind of low chromatic aberration concrete, by weight, comprises the following components:

[0022] 240 parts of cement, 80 parts of mineral powder, 120 parts of fly ash, 1100 parts of stone, 180 parts of sand, 400 parts of water, 30 parts of film former, 14 parts of water reducer, and 4 parts of CTF concrete synergist.

Embodiment 3

[0023] Embodiment 3: a kind of low chromatic aberration concrete, by weight, comprises the following components:

[0024] 200 parts of cement, 65 parts of mineral powder, 95 parts of fly ash, 1050 parts of stone, 135 parts of sand, 350 parts of water, 25 parts of film former, 11 parts of water reducing agent, and 3 parts of CTF concrete synergist.

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Abstract

The invention discloses low-chromatic aberration concrete. The low-chromatic aberration concrete is characterized by containing the following components in parts by weight: 160-240 parts of cement, 50-80 parts of mineral powder, 70-120 parts of coal ash, 1000-1100 parts of stones, 90-180 parts of sand, 300-400 parts of water, 20-30 parts of a film foaming agent, 8-14 parts of a water reducer and 2-4 parts of CTF concrete synergist. The low-chromatic aberration concrete has the characteristics of easiness in dirt removal and good over-vibration adaptability.

Description

technical field [0001] The invention relates to concrete for construction, in particular to concrete with low color difference. Background technique [0002] Concrete refers to an engineering composite material in which aggregates are cemented into a whole by a cementitious material. The gel material is generally cement, and the aggregate is usually sand. With economic development, various infrastructure projects have sprung up, and the amount of concrete has also risen sharply. For ordinary buildings, after the concrete is poured, the surface needs to be covered with decorative materials such as tiles. However, in some basic projects, such as traffic tunnels, fair-faced concrete is usually used directly as the appearance surface, that is, no decorative materials are attached. However, in actual construction, the color difference often appears on the concrete surface, which greatly reduces the aesthetics. The reason is that after the joints of the formwork are oxidized to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B18/141C04B18/08C04B14/02C04B14/06C04B24/282C04B2103/302C04B2103/0068
Inventor 刘玉成王霆汪兵钱继源钟金盛纵向群张范立林文
Owner STATE GRID CORP OF CHINA
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