High-density freezing-tolerant concrete

A concrete and compacting technology, applied in the field of concrete, can solve the problems that the compactness and frost resistance of concrete cannot meet the requirements of the society, and the service environment of concrete structures is complex, so as to avoid moisture and agglomeration, reduce mixing water consumption, and reduce damage stress. Effect

Inactive Publication Date: 2015-03-25
WUWEI HENGJI COMML CONCRETE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The service environment of concrete structures is often very complicated, and construction in winter is inevitable. The compactness and frost resistance of the current concrete cannot meet the requirements of the society, and further research and development are needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The high-density freeze-resistant concrete of the present invention, its raw material comprises the following components by weight: 130 parts of ordinary Portland cement, 300 parts of sea sand, 300 parts of gravel, 100 parts of water, 15 parts of silicon powder, lithium slag powder 25 parts, 12 parts of fly ash, 15 parts of iron tailings, 3 parts of polypropylene fiber, 15 parts of glass fiber, 0.8 part of magnesium powder, 1.0 part of hydrogen peroxide, 0.5 part of ethylenediamine-tetramethylphosphonic acid, dodecane 0.16 parts of sodium phenylsulfonate, 0.2 parts of phosphobutane tricarboxylic acid, 0.6 parts of iron oxide yellow, 1.2 parts of sodium thiosulfate, 0.9 parts of urea, 0.5 parts of sodium chloride, 1 part of ethylene glycol, and 2 parts of water reducer share.

Embodiment 2

[0019] The high-density freeze-resistant concrete of the present invention, its raw material comprises the following components by weight: 250 parts of ordinary Portland cement, 180 parts of sea sand, 600 parts of gravel, 60 parts of water, 35 parts of silicon powder, lithium slag powder 10 parts, 30 parts of fly ash, 5 parts of iron tailings, 15 parts of polypropylene fiber, 10 parts of glass fiber, 2.3 parts of magnesium powder, 0.5 parts of hydrogen peroxide, 0.9 parts of ethylenediamine-tetramethylphosphonic acid, dodecane 0.1 parts of sodium phenylsulfonate, 0.36 parts of phosphobutane tricarboxylic acid, 0.3 parts of iron oxide yellow, 2.3 parts of sodium thiosulfate, 0.3 parts of urea, 1.2 parts of sodium chloride, 0.5 parts of ethylene glycol, and 6 parts of water reducer share;

[0020] Wherein, the content of silica in the iron tailings is 55wt%, the content of alumina is 9.6wt%, and the content of iron oxide is 9.5wt%; the apparent density of iron tailings is 3500kg...

Embodiment 3

[0023] The high-density freeze-resistant concrete of the present invention, its raw material comprises the following components by weight: 226 parts of ordinary Portland cement, 205.9 parts of sea sand, 334 parts of gravel, 80.6 parts of water, 22.5 parts of silicon powder, lithium slag powder 13 parts, 19.5 parts of fly ash, 12.5 parts of iron tailings, 10.3 parts of polypropylene fiber, 12.6 parts of glass fiber, 1.3 parts of magnesium powder, 0.94 parts of hydrogen peroxide, 0.73 parts of ethylenediamine-tetramethylphosphonic acid, dodecane 0.11 parts of phenylbenzenesulfonic acid, 0.34 parts of phosphobutane tricarboxylic acid, 0.56 parts of iron oxide yellow, 1.85 parts of sodium thiosulfate, 0.78 parts of urea, 0.86 parts of sodium chloride, 0.89 parts of ethylene glycol, 4.6 parts of superplasticizer ;

[0024] Wherein, the content of silica in the iron tailings sand is 60wt%, the content of alumina is 8wt%, and the content of iron oxide is 10wt%; the apparent density o...

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Abstract

The invention discloses high-density freezing-tolerant concrete. The high-density freezing-tolerant concrete comprises the following raw materials: ordinary Portland cement, sea sand, gravel, water, silicon powder, lithium slag powder, fly ash, iron tailing sand, polypropylene fiber, glass fiber, magnesium powder, hydrogen peroxide, ethylene diamine-tetramethyl phosphoric acid, sodium dodecylbenzene sulfonate, phosphoric butanetricarboxylic acid, iron oxide yellow, sodium thiosulfate, urea, sodium chloride, ethylene glycol and a water-reducing agent. The high-density freezing-tolerant concrete disclosed by the invention has the advantages of good freezing tolerance, high density and good durability.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a high-density freeze-resistant concrete. Background technique [0002] Concrete has also become the material of choice for roads, dams, and bridges, as industrial development and urbanization accelerate. With the proposal of high-performance concrete, the durability of concrete has attracted more and more attention from all aspects. The durability of concrete refers to the resistance of the concrete structure to climate, chemical corrosion, physical action or any other damage process. Its safety, usability and appearance. As far as concrete materials are concerned, although the total energy consumption per unit of production is very low, the huge consumption and the overall low technical level put a lot of pressure on resources, energy and the environment as a whole. The compactness and frost resistance of concrete are important factors affecting the durability of concrete. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/16C08F291/06C04B103/30
Inventor 倪友
Owner WUWEI HENGJI COMML CONCRETE
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