C100 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, resource shortage, and limited resource utilization of sulfur-fixed ash, and achieve the effects of reducing water demand, high resource value, and rich hydration products

Inactive Publication Date: 2018-12-18
成都宏基建材股份有限公司
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  • 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 C100 high-strength concrete and its preparation method

Method used

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  • C100 high-strength concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A C100 high-strength concrete, consisting of the following materials: 445 parts of cement, 105 parts of mineral powder, 35 parts of fly ash, 65 parts of sulfur-fixed ash, 995 parts of coarse aggregate, 663 parts of fine aggregate, 5.2 parts of water reducer, 10 parts of rust inhibitor, 127 parts of water, calculated in parts by weight.

[0044] The cement is selected from P.O 525 cement, provided by Dujiangyan Lafarge Cement Co., Ltd., and its performance test results are as follows: standard consistency water demand 27.1%, specific surface area 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.

[0045] The slag powder is selected from S95 granulated blast furnace slag powder, provided by Chengdu Concrete New Buildi...

Embodiment 2

[0057] A C100 high-strength concrete, consisting of the following materials: 450 parts of cement, 95 parts of mineral powder, 35 parts of fly ash, 70 parts of sulfur-fixed ash, 995 parts of coarse aggregate, 663 parts of fine aggregate, 5.2 parts of water reducer, 10 parts of rust inhibitor, 127 parts of water, calculated in parts by weight.

[0058] The cement is selected from P.O 525 cement, provided by Dujiangyan Lafarge Cement Co., Ltd., and its performance test results are as follows: standard consistency water demand 27.1%, specific surface area 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.

[0059] The slag powder is selected from S95 granulated blast furnace slag powder, provided by Chengdu Concrete New Buildi...

Embodiment 3

[0071] A C100 high-strength concrete, consisting of the following materials: 445 parts of cement, 100 parts of mineral powder, 35 parts of fly ash, 70 parts of sulfur-fixed ash, 995 parts of coarse aggregate, 663 parts of fine aggregate, 5.2 parts of water reducer, 10 parts of rust inhibitor, 127 parts of water, calculated in parts by weight.

[0072] The cement is selected from P.O 525 cement, provided by Dujiangyan Lafarge Cement Co., Ltd., and its performance test results are as follows: standard consistency water demand 27.1%, specific surface area 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.

[0073] The slag powder is selected from S95 granulated blast furnace slag powder, provided by Chengdu Concrete New Build...

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Abstract

The invention belongs to the field of concrete, and particularly discloses C100 high-strength concrete and a preparation method thereof. The concrete is prepared from the following materials in partsby weight: 420-470 parts of cement, 90-120 parts of mineral powder, 30-40 parts of coal ash, 60-70 parts of desulphurization ash, 970-1010 parts of coarse aggregate, 650-670 parts of fine aggregate, 4.5-6.5 parts of a water reducer, 5-15 parts of a corrosion inhibitor and 120-130 parts of water. The invention provides the C100 high-strength concrete; the concrete has a good slump, good extended degree, good compressive strength and elasticity modulus, and excellent comprehensive performance, and meanwhile, the problems of resource shortage of traditional cement admixtures of the mineral powder, the coal ash and the like, and limited resourced approaches and a low utilization rate of the desulphurization ash are solved.

Description

technical field [0001] The invention belongs to the field of concrete, and specifically discloses a C100 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
CPCC04B28/04C04B2111/00017C04B2201/50C04B18/141C04B18/08C04B18/062C04B14/048C04B18/068C04B2103/302C04B2103/61
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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