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Anti-cracking mass concrete

A technology of large-volume concrete and anti-cracking waterproofing agent, which is applied in the field of building materials, can solve the problems of increasing construction difficulty and affecting the effect of concrete cracking, and achieves the effect of uniform internal strength, uniform internal and sufficient filling

Inactive Publication Date: 2018-03-09
天津顺德混凝土工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, taking anti-cracking measures in the construction process not only increases the difficulty of construction, but also affects the anti-cracking effect of concrete if there is a slight deviation in the construction process.

Method used

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  • Anti-cracking mass concrete
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] The quality of each component in each embodiment is as shown in table 2.

[0038] Table 2

[0039]

[0040]

Embodiment 2

[0041] The difference between embodiment 2 and embodiment 1 is that corncob powder and silica sol are added; the difference between embodiment 3-6 and embodiment 2 is that furfuryl alcohol mud is added. According to the "Code for Construction of Mass Concrete" (GB50496-2009), the performance test results of the crack-resistant mass concrete of Examples 1-6 are shown in Table 3.

[0042] table 3

[0043]

[0044] Based on the above test results, Example 6 has better performance, so Example 6 is a more preferred solution. The anti-crack mass concrete in embodiment 6 comprises the following components expressed in parts by weight: 165 parts of water, 240 parts of cement, 120 parts of fly ash, 86 parts of mineral powder, 1081 parts of gravel, 662 parts of sand, admixture 8.92 parts, 34 parts of fiber anti-cracking waterproof agent.

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Abstract

The invention discloses anti-cracking mass concrete which is characterized by comprising the following components in parts by weight: 160-180 parts of water, 140-230 parts of cement, 105-128 parts offly ash, 80-90 parts of mineral powder, 980-1230 parts of macadam, 600-690 parts of sand, 8.8-9.3 parts of an admixture and 30-34 parts of a fibrous anti-cracking water-proofing agent. The cracking resistance of the mass concrete is improved by improving the ratio of the components in the concrete.

Description

technical field [0001] The invention relates to the technical field of building materials, more specifically, it relates to a crack-resistant mass concrete. Background technique [0002] my country's "Code for Construction of Mass Concrete" GB50496-2009 stipulates that the minimum geometric size of the concrete structure is not less than 1m, or it is expected to cause harmful cracks due to temperature changes and shrinkage caused by the hydration of the cementitious material in the concrete. The resulting concrete is called mass concrete. [0003] Large-scale buildings in modern buildings are increasing, among which the concrete structures of high-rise building foundations and large bridge piers and caps are relatively large, and mass concrete construction is becoming more and more common. Mass concrete structure, which has the characteristics of thick structure, large volume, dense steel bars, large amount of concrete pouring, and high construction technology requirements. ...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/20
CPCC04B28/04C04B2111/20C04B2201/50C04B18/08C04B18/141C04B14/02C04B14/104C04B2103/302C04B24/383C04B24/10C04B22/148C04B16/0633C04B22/147C04B22/124C04B22/10C04B18/24C04B22/06C04B24/001
Inventor 赵学顺赵旭孟宪春刘建洞王洪春王延刘娟娟冯欣宇李楠韩辉杜雪薛玲玲陈秀萍崔亚楠张艳姣
Owner 天津顺德混凝土工程有限公司
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