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High-durability concrete for road

A concrete and durability technology, applied in the field of concrete, can solve problems such as spalling, exposed steel corrosion, concrete surface cracking, etc., to achieve the effects of increasing the contact area, improving workability, and reducing water consumption

Inactive Publication Date: 2016-12-21
蚌埠市宝运商品混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lack of durability of ordinary concrete has brought great harm to structural engineering, and the idea of ​​concrete design based on strength alone is no longer suitable for engineering needs
Due to the complex climate and environment of highways, it is easy to cause problems such as cracking and peeling of the concrete surface, corrosion and exposure of steel bars, etc., which seriously affect the service life of concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] High-durability concrete for roads proposed by the present invention, the raw materials of the concrete include the following components in parts by weight: 285 parts of Portland cement, 330 parts of coarse sand, 250 parts of medium coarse sand, 900 parts of gravel, and 145 parts of water , 80 parts of coal ash powder, 30 parts of blast furnace slag, 20 parts of vitrified microspheres, 10 parts of natural zeolite superfine powder, 25 parts of steel slag, 8 parts of alumina powder, 1 part of sodium molybdate, 1.2 parts of sodium chromate, sulfur 0.5 parts of sodium sulfate, 1.2 parts of triethanolamine, 1.7 parts of maleic anhydride-based water reducer, 0.16 parts of air-entraining agent, and 6 parts of mixed fibers.

Embodiment 2

[0019] High-durability concrete for roads proposed by the present invention, the raw materials of the concrete include the following components in parts by weight: 345 parts of Portland cement, 475 parts of coarse sand, 400 parts of medium coarse sand, 1200 parts of gravel, and 165 parts of water , 65 parts of coal ash powder, 20 parts of blast furnace slag, 35 parts of vitrified microspheres, 25 parts of natural zeolite superfine powder, 35 parts of steel slag, 15 parts of alumina powder, 1.6 parts of sodium molybdate, 1.8 parts of sodium chromate, sulfur 1 part of sodium sulfate, 0.6 parts of triethanolamine, 1.35 parts of maleic anhydride-based water reducer, 0.08 parts of air-entraining agent, and 10 parts of mixed fibers.

Embodiment 3

[0021] High-durability concrete for roads proposed by the present invention, the raw materials of the concrete include the following components in parts by weight: 310 parts of Portland cement, 415 parts of coarse sand, 330 parts of medium coarse sand, 1025 parts of gravel, and 158 parts of water , 72 parts of coal ash powder, 24.8 parts of blast furnace slag, 28 parts of vitrified microspheres, 18 parts of natural zeolite superfine powder, 30 parts of steel slag, 11.2 parts of alumina powder, 1.3 parts of sodium molybdate, 1.52 parts of sodium chromate, sulfur 0.76 parts of sodium sulfate, 1.04 parts of triethanolamine, 1.58 parts of maleic anhydride-based water reducer, 0.12 parts of air-entraining agent, and 8.8 parts of mixed fibers.

[0022] Wherein, the gravel is composed of gravel with a particle size of 1-5mm, gravel with a particle size of 5-16mm, and gravel with a particle size of 16-25mm in a weight ratio of 10:80:1.

[0023] The particle size of described coal ash ...

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Abstract

The invention discloses high-durability concrete for a road. The concrete is prepared from Portland cement, coarse sand, medium-coarse sand, gravel, water, coal ash powder, blast furnace slag, glass bead, natural zeolite ultrafine powder, steel slag, aluminum oxide powder, sodium molybdate, sodium chromate, sodium thiosulfate, triethanolamine, a maleic anhydride water reducing agent, an air entraining agent and mixed fiber. The high-durability concrete for the road is high in mechanical property, not prone to cracking and high in durability such as impermeability, corrosion resistance and freezing resistance on the basis of ensuring strength and greatly prolongs the service life of the road.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a high-durability concrete for roads. Background technique [0002] The building structure is the main skeleton of the building, and the material basis of the structure is the building material. The optimization and development of building structures continuously promote the renewal and development of building materials. Concrete is the most widely used building material in modern times, and it is also the most man-made material at present. Since the advent of concrete, it has experienced the development of low strength, medium strength, high strength and even super high strength. It seems that people are always willing to pursue the continuous improvement of strength. In recent decades, accidents of premature failure and collapse of concrete structures due to material deterioration have occurred frequently at home and abroad, and are becoming more and more serious. The prema...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/02C08F283/06C08F222/06
CPCC04B28/04C04B40/0039C04B2103/304C04B2111/0075C08F283/065C04B14/06C04B14/02C04B18/08C04B18/142C04B14/18C04B14/047C04B14/303C04B22/08C04B22/087C04B22/14C04B24/122C04B14/42C04B16/0641C04B16/0625C04B16/0683C04B2103/302C04B38/02C04B24/34C04B24/20C04B24/32C08F222/06
Inventor 贾军
Owner 蚌埠市宝运商品混凝土有限公司
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