Anti-disturbance concrete and preparation method thereof

An anti-disturbance, concrete technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of low early strength of ordinary concrete, long time interval between initial setting and final setting, etc., and achieve high crack resistance. properties, improved strength and durability, high early strength

Inactive Publication Date: 2011-05-18
TONGJI UNIV
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Problems solved by technology

[0005] In order to achieve the above purpose, the present invention solves the problems of low early strength, initial setting and final setting time of ordinary concrete by optimizing the ratio and using polycarboxylate water reducing agent with high water reducing rate and

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  • Anti-disturbance concrete and preparation method thereof
  • Anti-disturbance concrete and preparation method thereof
  • Anti-disturbance concrete and preparation method thereof

Examples

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Embodiment Construction

[0058] The present invention is further set forth below in conjunction with embodiment. It should be understood that these examples are only used to illustrate the present invention, not to limit the scope of the present invention.

[0059] Anti-disturbance concrete under different cementitious material dosages in Examples 1-3

[0060] During the preparation, the ordinary Portland cement with a strength grade of 42.5 produced by Chongqing Kehua Cement Factory was selected as the cement, and the first-class fly ash produced by Guizhou Zunyi Power Plant was used as the fly ash. The polycarboxylate superplasticizer is a polycarboxylate superplasticizer SP1 produced by Mapei Co., Ltd., with a solid content of 30%. The anti-disturbance concrete admixture is powder, and the dosage is between 5-8%.

[0061] The preparation method of anti-disturbance concrete admixture of the present invention is as follows:

[0062] First of all, select various raw materials that meet the specific...

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Abstract

The invention provides an anti-disturbance concrete and a preparation method thereof. The raw material of the anti-disturbance concrete comprises the following components in part by weight: 100 parts of cement, 10 to 100 parts of fly ash, 1 to 40 parts of other mineral admixture, 1 to 10 parts of anti-disturbance additive, 1 to 6 parts of polycarboxylic acid water reducer, 190 to 480 parts of fine aggregate, 200 to 480 parts of broken stone and 30 to 80 parts of water. In the invention, the drawbacks of common concrete, such as low early strength and long initial setting and final setting time interval, can be overcome by optimizing a mixing ratio and using the polycarboxylic acid water reducer with high water reduction rate, high water holding performance and early strength as well as the mineral admixture and the anti-disturbance additive in combination; and the early disturbance resistance, cracking resistance and durability of concrete are improved greatly.

Description

technical field [0001] The invention relates to an anti-disturbance concrete and a preparation method thereof. The utility model belongs to the technical field of repair and reinforcement engineering of various disturbances such as traffic, bridges and roads. Background technique [0002] Concrete is currently the most widely used man-made building material in the world, and is widely used in highways, bridges, tunnels, underground and other projects. With the rapid development of the economy, the traffic flow in various places is also increasing, especially on the traffic roads in the western region of my country. Due to the influence of factors such as traffic volume, vehicle load tonnage and environmental erosion, bridge diseases are becoming more and more serious. , has been unable to meet the current traffic requirements, and urgently needs timely reinforcement and transformation. [0003] The traffic flow has a great impact on the early stage of repairing and strength...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B24/26C04B24/28C04B24/38
CPCC04B28/04C04B20/026Y02W30/91C04B14/02C04B14/06C04B14/068C04B14/28C04B18/08C04B18/12C04B18/141C04B20/0048C04B22/008C04B22/147C04B24/04C04B24/121C04B24/2641C04B18/146C04B22/085C04B24/003C04B2103/302C04B20/02
Inventor 蒋正武吴建林徐海源潘微旺
Owner TONGJI UNIV
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