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Anti-impact wear-resistant concrete for hydraulic engineering and preparation method thereof

A technology for water conservancy engineering and concrete, applied in the fields of hydroelectric power generation, sustainable waste treatment, solid waste management, etc., can solve the problems of difficult implementation and maintenance of underwater engineering, accelerated wear of concrete, etc., to improve anti-drying and anti-erosion performance. , The effect of compactness inside concrete and reducing porosity

Inactive Publication Date: 2022-07-05
吕书波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing hydraulic concrete is extremely vulnerable to the erosion and grinding of the water body in the water and soil, resulting in accelerated wear of the concrete, which brings great difficulties and challenges to the implementation and maintenance of underwater projects.

Method used

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  • Anti-impact wear-resistant concrete for hydraulic engineering and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of impact-resistant and wear-resistant concrete for hydraulic engineering, comprising the following raw materials by weight: 73 parts of Portland cement (Conch brand XK08-001-04054, the same below), 41 parts of yellow phosphorus slag, 20 parts of phosphogypsum powder, 5 parts of alkalophilic Bacillus licheniformis (purchased from Shandong Changsong Biotechnology Co., Ltd., the same below), 15 parts of brown corundum, 0.1 part of polypropylene film split fiber (purchased from Langfang Yuanneng New Building Materials Co., Ltd., the same below), 3 parts Parts of water-reducing agent (ZM-1 aliphatic high-efficiency water-reducing agent, purchased from Xuzhou Xingu Building Materials Technology Co., Ltd.), 113 parts of sand and gravel, its preparation method is:

[0028] S1. Prepare raw materials according to the ratio;

[0029] S2, grind described Portland cement, yellow phosphorus slag, brown corundum and sand to obtain grinding powder A, and the specific surface ar...

Embodiment 2

[0034] An impact-resistant and wear-resistant concrete for water conservancy projects, comprising the following raw materials by weight: 78 parts of Portland cement, 43 parts of yellow phosphorus slag, 21 parts of phosphogypsum powder, 6 parts of alkalophilic Bacillus licheniformis, and 17 parts of brown corundum , 0.2 parts of polypropylene film split fibers, 4 parts of water-reducing agent (ZM-1 aliphatic superplasticizer, purchased from Xuzhou Xingu Building Materials Technology Co., Ltd.), 116 parts of sandstone, its preparation method is:

[0035] S1. Prepare raw materials according to the ratio;

[0036] S2, grind described Portland cement, yellow phosphorus slag, brown corundum and sand to obtain grinding powder A, and the specific surface area of ​​described grinding powder A is 340m 2 / kg;

[0037] S3. Grinding the ground powder A, the phosphogypsum powder, and the polypropylene film split fiber again to obtain a ground powder B, the specific surface area of ​​the gr...

Embodiment 3

[0041] An impact-resistant and wear-resistant concrete for water conservancy projects, comprising the following raw materials by weight: 79 parts of Portland cement, 45 parts of yellow phosphorus slag, 27 parts of phosphogypsum powder, 9 parts of alkalophilic Bacillus licheniformis, and 21 parts of brown corundum , 0.2 parts of polypropylene film split fibers, 5 parts of water-reducing agent (ZM-1 aliphatic superplasticizer, purchased from Xuzhou Xingu Building Materials Technology Co., Ltd.), 123 parts of sand and gravel, its preparation method is:

[0042] S1. Prepare raw materials according to the ratio;

[0043] S2, grind described Portland cement, yellow phosphorus slag, brown corundum and sand to obtain grinding powder A, and the specific surface area of ​​described grinding powder A is 360 m 2 / kg;

[0044] S3. Grinding the ground powder A, the phosphogypsum powder, and the polypropylene film split fiber again to obtain a ground powder B, the specific surface area of ​​t...

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Abstract

The invention discloses impact-resistant and wear-resistant concrete for a water conservancy project. The impact-resistant and wear-resistant concrete is prepared from the following raw materials in parts by weight: 73-81 parts of Portland cement, 41-49 parts of yellow phosphorus slag, 20-30 parts of ardealite powder, 5-10 parts of basophilic bacillus licheniformis, 15-22 parts of brown aluminum oxide, 0.1-0.3 part of polypropylene split film fibers, 3-6 parts of a water reducing agent and 113-129 parts of gravel. The preparation method comprises the following steps: grinding the Portland cement, the yellow phosphorus slag, the brown aluminum oxide and the sandstone to obtain ground powder A; grinding the ground powder A, ardealite powder and polypropylene split film fibers again to obtain ground powder B; calcining the ground powder B at the temperature of 610-630 DEG C to obtain calcined powder; and cooling the calcined powder to normal temperature, doping the basophilic bacillus licheniformis and the water reducing agent, and uniformly stirring. The concrete prepared by the invention is impact-resistant, wear-resistant and long in service life.

Description

technical field [0001] The invention belongs to the technical field of impact-resistant and wear-resistant concrete, in particular to an impact-resistant and wear-resistant concrete for hydraulic engineering and a preparation method thereof. Background technique [0002] The erosion, wear and cavitation damage of hydraulic structures caused by high-speed water flow, sand-laden water flow, and bedding water flow have always been the common damage methods of hydraulic discharge structures such as overflow dams, flood discharge tunnels, and sluice gates. The long-term concern of hydropower construction and the problems to be properly solved. According to the survey, 70% of the dam discharge structures in operation in my country have various degrees of erosion damage, and some are even very serious. Not only are they damaged, but also endanger the safety of other structures. [0003] Concrete used in hydraulic structures that are often or periodically affected by environmental ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/14C04B16/06C04B14/36C04B14/30C04B14/06C04B111/20C04B111/27C04B111/74
CPCC04B28/04C04B18/145C04B14/365C04B14/303C04B16/0633C04B14/06C04B2111/20C04B2111/00017C04B2201/50C04B2111/27C04B2111/74C04B2103/0001C04B2103/302Y02W30/91
Inventor 吕书波李雁泽孟庆华武庆高金迎苗炎欣姚继培高敏杰李铜张振鹏
Owner 吕书波
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