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Low-shrinkage concrete

A concrete and low-shrinkage technology, applied in the field of low-shrinkage concrete, can solve problems such as high cost, inapplicability to the needs of production and life, and unreasonable design of concrete mix ratio, and achieve the effect of reasonable mix ratio, reasonable design and wide application range

Inactive Publication Date: 2017-04-05
蔡建华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing concrete mix design is unreasonable and cannot be applied to the needs of existing production and living, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A low-shrinkage concrete, which is uniformly mixed with the following raw materials: water 160kg / m³, cement 152kg / m³, fly ash 80 kg / m³, mineral powder 33 kg / m³, sand 909 kg / m³ , fine stone 985 kg / m³, silica fume 253-255 kg / m³ and admixture 3.3-3.6 kg / m³.

Embodiment 2

[0015] A low-shrinkage concrete, which is uniformly mixed with the following raw materials: water 162.5kg / m³, cement 169.5kg / m³, fly ash 75kg / m³, mineral powder 38kg / m³, sand 884.5kg / m³ , fine stone 998 kg / m³, silica fume 254kg / m³ and admixture 3.45kg / m³.

Embodiment 3

[0017] A low-shrinkage concrete, which is uniformly mixed with the following raw materials: water 165kg / m³, cement 187 kg / m³, fly ash 70kg / m³, mineral powder 43 kg / m³, sand 860 kg / m³ , fine stone 1011 kg / m³, silica fume 255 kg / m³ and admixture 3.6 kg / m³.

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Abstract

The invention discloses low-shrinkage concrete. The low-shrinkage concrete is formed by evenly stirring raw materials of the following mixing proportion and comprises 160-165kg / m<3> of water, 152-187kg / m<3> of cement, 70-80kg / m<3> of pulverized fuel ash, 33-43kg / m<3> of mineral powder, 860-909kg / m<3> of sand, 985-1011kg / m<3> of fine stone, 253-255kg / m<3> of silica powder and 3.3-3.6kg / m<3> of an additive. The low-shrinkage concrete has the advantages of being reasonable in design and wide in application range.

Description

technical field [0001] The invention relates to the technical field of concrete for designing buildings, and in particular relates to a low-shrinkage concrete. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. concrete. Concrete is the most widely used and used building material in civil engineering. Design and manufacture concrete according to the predetermined performance, and develop new varieties of lightweight, high-strength, and multi-functional concrete. [0003] The existing concrete mix design is unreasonable, cannot be applied to the needs of existing production and life, and the cost is high. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
Inventor 蔡建华
Owner 蔡建华
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