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High performance concrete prepared from wastes

A technology of high-performance concrete and waste materials, which is applied in the field of high-performance concrete, can solve problems such as shrinkage and cracking, and achieve the effects of reducing dosage, improving work performance, durability, and good compatibility

Inactive Publication Date: 2016-03-09
BEIJING ZHENGFU CONCRETE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a high-performance concrete prepared from waste materials, which is made of waste sand and waste rock, which is not only economical and environmentally friendly, but also solves the problem of shrinkage and cracking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The mix ratio of the high-performance concrete prepared from waste materials in the embodiment one of table 1

[0049] cement

[0050] Among them, the cement is P.O42.5 Portland cement; the fly ash is Class II fly ash; the mineral powder is S95 grade mineral powder; the water reducing agent is copolymer I; the plastic retaining agent is copolymer II; the anti-segregation agent is copolymer III; the retarder was purchased from Kunshan Guanyuan Jianghong Building Materials International Trade Co., Ltd.

Embodiment 2

[0052] The mix ratio of the high-performance concrete prepared from waste materials in the second embodiment of table 2

[0053] cement

[0054] Among them, the cement is P.O42.5 Portland cement; the fly ash is Class II fly ash; the mineral powder is S95 grade mineral powder; the water reducing agent is copolymer I; the plastic retaining agent is copolymer II; the anti-segregation agent is copolymer III; the retarder was purchased from Kunshan Guanyuan Jianghong Building Materials International Trade Co., Ltd.

Embodiment 3

[0056] The mixing ratio of the high-performance concrete prepared from waste materials in the third embodiment of table 3

[0057] cement

[0058] Among them, the cement is P.O42.5 Portland cement; the fly ash is Class II fly ash; the mineral powder is S95 grade mineral powder; the water reducing agent is copolymer I; the plastic retaining agent is copolymer II; the anti-segregation agent is copolymer III; the retarder was purchased from Kunshan Guanyuan Jianghong Building Materials International Trade Co., Ltd.

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Abstract

The invention discloses a high performance concrete prepared from wastes. The high performance concrete is prepared from, by mass, 150-300 parts of cement, 100-200 parts of fly ash, 100-200 parts of mineral powder, 700-1000 parts of waste sands, 700-1000 parts of waste stones, 5-15 parts of an additive, and 150-200 parts of water, wherein the waste sands are second area medium sands, the fineness modulus is 2.3-2.5, and the average particle size is 0.5-0.35mm; and the average particle size of the waste stones is 5.5-25mm. The high performance concrete is made by adopting the waste sands and the waste stones, so economy and environmental protection are realized, and the construction cracking problem is solved.

Description

technical field [0001] The invention relates to the technical field of concrete production, more specifically, it relates to a high-performance concrete prepared from waste materials. Background technique [0002] With the development of urban construction and the progress of construction technology, higher requirements are put forward for the quality index of concrete, which promotes the development of concrete in the direction of high performance. In the design of some large-scale structures, railway engineering and municipal engineering, high-performance concrete such as C50 and C60 appears more often. However, the production cost of high-performance concrete is relatively high. Compared with the mix ratio of ordinary concrete, the amount of gel material is large and the amount of cement is relatively high. The high cost of high-efficiency concrete has greatly restricted the popularization and application of high-efficiency concrete. [0003] Traditional concrete needs ...

Claims

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Application Information

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IPC IPC(8): C04B28/02C04B18/08C04B18/12
CPCY02W30/91
Inventor 丁小华李珊于新亚刘祥山杨扬袁柏黄旭日刘印才冯星望赵文昌王东白亚生
Owner BEIJING ZHENGFU CONCRETE CO LTD
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