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Concrete for shear wall structure

A concrete and shear wall technology, which is applied in the field of concrete and building materials of shear wall structure, can solve the problems of large randomness and difficult control of concrete quality, achieve high performance advantages, great social environment and technical and economic benefits, and reduce The effect of heat of hydration

Inactive Publication Date: 2013-05-15
SHAANXI COAL & CHEM CONSTR GRP CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] However, in the process of concrete production, although the "Technical Specifications for the Application of Fly Ash Concrete" (GBJ146-90) stipulates the raw materials of fly ash, the structure used and the maximum replacement amount, the quality of material resources in various places is different. Therefore, the amount of cement replaced by fly ash is quite arbitrary, making it difficult to control the quality of concrete

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  • Concrete for shear wall structure
  • Concrete for shear wall structure
  • Concrete for shear wall structure

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Embodiment Construction

[0017] The invention provides a kind of concrete for shear wall structure, the concrete for shear wall structure is prepared from cement, sand, gravel, water and fly ash which can partially replace cement according to the conventional concrete preparation process to make.

[0018] The amount of fly ash to replace cement is 20% to 35% of the total mass of cement, preferably 30%.

[0019] The concrete used for the shear wall structure is prepared from cement, sand, gravel, fly ash and water according to the mass ratio of 1:2.46:3.57:0.43:0.47 according to the conventional concrete preparation process.

[0020] The concrete used for the shear wall structure is also added with a pumping agent; the concrete used for the shear wall structure is composed of cement, sand, gravel, fly ash, pumping agent and water in a mass ratio of 1:2.46:3.57 : 0.43: 0.02: 0.47 Prepared according to the conventional concrete preparation process.

[0021] The fineness of fly ash 0.045mm sieve is not ...

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Abstract

The invention relates to concrete for a shear wall structure. The concrete is prepared from cement, sand, gravel, water and coal ash which can partially replace the cement according to the conventional concrete preparation process. According to the concrete, the concrete performance is improved, the quality of concrete is guaranteed, the cement is saved, the concrete cost is reduced, and the resources are saved.

Description

technical field [0001] The invention belongs to the construction field and relates to a building material, in particular to a concrete used for a shear wall structure. Background technique [0002] In traditional concrete proportioning, cement is the main cementing material. With the continuous increase of concrete strength grade and the influence of the quality of fine aggregate in local raw materials, the amount of cement is gradually increasing, resulting in the increase of heat of hydration. It is easy to produce internal cracks in concrete and affect the quality of concrete. [0003] Fly ash is a large amount of industrial waste discharged from thermal power plants and is a by-product of thermal power plants. Because fly ash contains highly active vitreous minerals, it can interact with cement hydration product Ca(OH) 2 A secondary hydration reaction occurs, which has certain activity and potential activity resources. The use of fly ash to replace part of the cement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/08
CPCY02W30/91
Inventor 冯社林乔建华殷凤英何万选孙雁刚宋淑芬
Owner SHAANXI COAL & CHEM CONSTR GRP CO LTD
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