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A cement-based composite material for seawater immersion environment and preparation method thereof

A composite material, cement-based technology, applied in the field of building materials, can solve problems affecting the life of dams, etc., to enhance thermal shock resistance and acid and alkali corrosion resistance, improve compressive strength and corrosion resistance, and improve the filling rate. Effect

Active Publication Date: 2017-12-15
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that defects such as pits and cracks produced by sea wave erosion in existing concrete dams will affect the life of the entire dam, the invention provides a cement-based composite material for seawater immersion environment and its preparation method. When in use, the composite material is mixed with sand, gravel, and water to form concrete for construction. Compared with the existing ordinary cement concrete, it has high strength and seawater erosion resistance, which can greatly improve the service life of the dam.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A cement-based composite material used in a seawater immersion environment. According to the weight ratio, it consists of 30% pozzolan base material, 50% aluminate cement, 15% reinforcing powder, 2% epoxy resin, and 0.8% epoxy resin. Oxygen resin curing agent, 0.6% quick-setting agent and 1.6% additive are made, and according to weight ratio, described pozzolanic base material is made of 7 parts of elemental silicon powder, 8 parts of alumina micropowder, 20 parts of quartz sand, 3 parts 15 parts of bone meal, 4 parts of metal powder, 7 parts of albite sintered and mixed with 14 parts of volcanic ash, and the reinforcing powder is composed of 15 parts of calcined kaolin, 4 parts of clay, and 7 parts of coal gangue , 8 parts of aluminum ash, 3 parts of red mud, 0.8 part of ferromolybdenum powder, 1 part of ferronickel powder and 0.9 part of ferrosilicon powder are sintered and ground, and the additive is composed of 15 parts of starch, 1 part of 1 part of sodium carbonat...

Embodiment 2

[0035] A cement-based composite material used in a seawater immersion environment. According to the weight ratio, it consists of 40% pozzolan base material, 45% aluminate cement, 10% reinforcing powder, 3% epoxy resin, and 0.6% epoxy resin. Oxygen resin curing agent, 0.4% quick-setting agent and 1% additive are made, and according to weight ratio, described pozzolan base material is made of 8 parts of elemental silicon powder, 10 parts of alumina micropowder, 24 parts of quartz sand, 5 parts 5 parts of bone powder, 5 parts of metal powder, 9 parts of albite sintered and mixed with 18 parts of pozzolan, and the reinforcing powder is composed of 17 parts of calcined kaolin, 6 parts of clay, and 9 parts of coal gangue , 10 parts of aluminum dust, 5 parts of red mud, 0.9 part of ferromolybdenum powder, 0.8 part of ferronickel powder and 1 part of ferrosilicon powder are sintered and ground, and the additive is composed of 17 parts of starch, 2 parts 1 part of sodium carbonate and ...

Embodiment 3

[0047] A cement-based composite material used in seawater immersion environments. According to the weight ratio, it consists of 35% pozzolan base material, 47.5% aluminate cement, 12.5% ​​reinforcing powder, 2.5% epoxy resin, and 0.7% epoxy resin. Oxygen resin curing agent, 0.5% quick-setting agent and 1.3% additive are made, and according to weight ratio, described pozzolan base-material is made of 7.5 parts of elemental silicon powder, 9 parts of alumina micropowder, 22 parts of quartz sand, 4 parts 16 parts of bone meal, 4.5 parts of metal powder, 8 parts of albite sintered and mixed with 16 parts of volcanic ash. The reinforcing powder is composed of 16 parts of calcined kaolin, 5 parts of clay, and 8 parts of coal gangue , 9 parts of aluminum ash, 4 parts of red mud, 1 part of ferromolybdenum powder, 0.9 part of ferronickel powder and 0.8 part of ferrosilicon powder are sintered and ground, and the additive is composed of 16 parts of starch, 1.5 parts 1 part of sodium car...

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Abstract

The invention provides a cement-based composite material for the seawater immersion environment and a preparation method of the cement-based composite material. The cement-based composite material is prepared from a cinerite base material, aluminate cement, enhancement powder, epoxy resin, an epoxy resin curing agent, an accelerating agent and an additive, wherein the cinerite base material is formed by sintering monatomic silicon powder, alumina micro powder, quartz sand, bone meal, metal powder and albite, mixing the sintered products with cinerite and grinding the mixture; the enhancement powder is formed by sintering kaolin, clay, coal gangue, aluminum ash, red mud, ferro-molybdenum powder, ferro-nickel powder and ferro-silicon powder and grinding the sintered products; the additive is prepared from starch, sodium carbonate and carboxymethylcellulose. When used, the composite material is mixed with aggregate and water to form concrete for construction; compared with current common cement concrete, the cement-based composite material has higher strength and seawater scouring and erosion resistance and substantially prolongs the service life of dams.

Description

technical field [0001] The invention relates to cement concrete in the field of building materials, in particular to a cement-based composite material used in seawater immersion environments and a preparation method thereof. Background technique [0002] Because seawater contains a large amount of salt and carries sediment, washing the coastline under natural conditions will cause huge erosion to the coastline. In order to avoid the erosion of the coastline by the waves, it is necessary to pour dams on the coastline to prevent the erosion of the waves. Because cement concrete has the advantages of high strength, erosion resistance, and a wide range of raw materials, these dams are often made of ordinary cement mixed with sand and gravel to form concrete masonry. However, due to the strong erosion of seawater itself, it will lead to construction. The weather resistance of the cement concrete of the dam is greatly reduced. As time goes by, the surface of the concrete dam will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2111/24C04B18/0427C04B24/281C04B2103/12C04B14/04C04B14/06C04B14/303C04B18/18C04B14/34C04B14/045C04B14/10C04B14/106C04B18/12C04B18/141C04B24/38C04B24/383C04B22/10
Inventor 吴亮刘义辉
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP