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C150 high-strength concrete and preparation method thereof

A high-strength concrete and compressive strength technology, applied in the field of concrete, can solve problems such as low utilization rate, limited resource utilization of sulfur-fixed ash, and resource shortage

Inactive Publication Date: 2019-01-08
成都宏基建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem of increasing shortage of traditional cement admixture resources such as mineral powder, fly ash, and silica fume, and the problem of limited resource utilization and low utilization rate of sulfur-fixed ash, the present invention provides a C150 high-strength concrete and its preparation method

Method used

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  • C150 high-strength concrete and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A C150 high-strength concrete is composed of the following materials: 540 parts of cement, 55 parts of fly ash, 120 parts of mineral powder, 75 parts of sulfur-fixing ash, 30 parts of silica fume, 880 parts of coarse aggregate, 510 parts of fine aggregate, 6.6 parts of water agent, 13 parts of rust inhibitor, 120 parts of fiber, and 155 parts of water, calculated in parts by weight.

[0047] Among them, the cement is selected from P.O 525 cement, which is provided by Dujiangyan Lafarge Cement Co., Ltd. The performance test results are as follows: the standard consistency water demand is 27.1%, and the specific surface area is 373m 2 kg -1 , initial setting time 153min, final setting time 272min, 3-day flexural strength 6.1MPa, 28-day flexural strength 8.5MPa, 3-day compressive strength 31.5MPa, 28-day compressive strength 60.6MPa, SO 3 The content is 2.16% (≤3.5%), the MgO content is 2.54% (≤5%), and the stability is qualified.

[0048] Among them, the fly ash is sele...

Embodiment 2

[0062] A C150 high-strength concrete is composed of the following materials: 520 parts of cement, 60 parts of fly ash, 125 parts of mineral powder, 80 parts of sulfur-fixing ash, 35 parts of silica fume, 880 parts of coarse aggregate, 510 parts of fine aggregate, 6.6 parts of water agent, 13 parts of rust inhibitor, 120 parts of fiber, and 155 parts of water, calculated in parts by weight.

[0063] Among them, the cement is selected from P.O 525 cement, which is provided by Dujiangyan Lafarge Cement Co., Ltd. The performance test results are as follows: the standard consistency water demand is 27.1%, and the specific surface area is 373m 2 kg -1 , initial setting time 153min, final setting time 272min, 3-day flexural strength 6.1MPa, 28-day flexural strength 8.5MPa, 3-day compressive strength 31.5MPa, 28-day compressive strength 60.6MPa, SO 3 The content is 2.16% (≤3.5%), the MgO content is 2.54% (≤5%), and the stability is qualified.

[0064] Among them, the fly ash is sele...

Embodiment 3

[0078] A C150 high-strength concrete is composed of the following materials: 560 parts of cement, 50 parts of fly ash, 115 parts of mineral powder, 70 parts of sulfur-fixed ash, 25 parts of silica fume, 880 parts of coarse aggregate, 510 parts of fine aggregate, 6.6 parts of water agent, 13 parts of rust inhibitor, 120 parts of fiber, and 155 parts of water, calculated in parts by weight.

[0079]Among them, the cement is selected from P.O 525 cement, which is provided by Dujiangyan Lafarge Cement Co., Ltd. The performance test results are as follows: the standard consistency water demand is 27.1%, and the specific surface area is 373m 2 kg -1 , initial setting time 153min, final setting time 272min, 3-day flexural strength 6.1MPa, 28-day flexural strength 8.5MPa, 3-day compressive strength 31.5MPa, 28-day compressive strength 60.6MPa, SO 3 The content is 2.16% (≤3.5%), the MgO content is 2.54% (≤5%), and the stability is qualified.

[0080] Among them, the fly ash is select...

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Abstract

The invention belongs to the field of concrete and particularly discloses C150 high-strength concrete and a preparation method thereof. The concrete consists of the following materials in parts by weight: 500 to 580 parts of cement, 45 to 65 parts of coal ash, 110 to 130 parts of ore powder, 65 to 85 parts of solid sulfur ash, 20 to 40 parts of silicon ash, 750 to 950 parts of crude aggregate, 400to 600 parts of fine aggregate, 5.5 to 7.5 parts of water reducer, 10 to 20 parts of corrosion inhibitor, 100 to 150 parts of fiber and 145 to 165 parts of water. The C150 high-strength concrete provided by the invention has good slump degree, expansion degree and compressive strength, has excellent comprehensive property, and overcomes the problems of shortage of the traditional cement admixtureresources such as the ore powder, the coal ash and the silicon ash, limited recycling route of the solid sulfur ash and low utilization rate of the solid sulfur ash.

Description

technical field [0001] The invention belongs to the field of concrete, and specifically discloses a C150 high-strength concrete and a preparation method thereof. Background technique [0002] High-strength concrete is concrete whose compressive strength reaches or exceeds 60MPa. As a new building material, high-strength concrete has been widely used in high-rise building structures, long-span bridge structures and some special structures due to its high compressive strength, strong deformation resistance, high density, and low porosity. application. [0003] At present, in the preparation technology of high-strength concrete, industrial solid wastes such as mineral powder, fly ash, and silica fume are often used as cement admixtures, and compounded with ordinary Portland cement in a certain proportion as cementitious materials. Compared with the use of ordinary Portland cement as cementitious material, the addition of mineral powder, fly ash, silica fume, etc. can replace ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/08C04B18/141C04B18/062C04B18/146C04B14/28C04B14/068C04B2103/302C04B24/122C04B14/48
Inventor 肖超范长利张皓玉
Owner 成都宏基建材股份有限公司
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