Concrete capable of reducing underground pipe gallery wallboard cracks

An underground pipe gallery and concrete technology, applied in the field of concrete, can solve problems such as easy cracks on the wall

Inactive Publication Date: 2021-05-11
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In order to overcome the defects of the existing technology, a concrete that can reduce the cracks of the wall board of the underground pipe gallery is now provided, so ...

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  • Concrete capable of reducing underground pipe gallery wallboard cracks
  • Concrete capable of reducing underground pipe gallery wallboard cracks

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Embodiment Construction

[0011] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0012] The invention provides a concrete capable of reducing cracks in the wall board of an underground pipe gallery, which is composed of cement, fly ash, coarse aggregate, fine aggregate, admixture, expansion agent and water.

[0013] Specifically, each cubic meter of concrete that can reduce cracks in the wall of the underground pipe gallery contains 240kg of cement, 130kg of fly ash, 1052kg of coarse aggregate, 793kg of fine aggreg...

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Abstract

The invention provides concrete capable of reducing underground pipe gallery wallboard cracks, which is composed of cement, fly ash, coarse aggregate, fine aggregate, an additive, an expanding agent and water. Per cubic meter of the concrete contains 240 kg of cement, 130 kg of fly ash, 1052 kg of coarse aggregate, 793 kg of fine aggregate, 8.7 kg of additive, 22.4 kg of expanding agent and 153 kg of water. The problem that cracks are easily generated on the wall surface of the underground pipe gallery wallboard when the existing concrete with a common mix proportion is used for coating the wall surface of the underground pipe gallery wallboard is solved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a concrete capable of reducing cracks in wall boards of underground pipe galleries. Background technique [0002] Concrete is the most used building material in the construction industry, and the design of its mix ratio directly determines the quality of the project. Existing concrete with ordinary mix proportions, some of which have too high cement paste content, do not have enough aggregate support during the hardening and shrinkage process, and are easy to crack; High, also prone to temperature cracks. Contents of the invention [0003] In order to overcome the defects of the existing technology, a concrete that can reduce the cracks of the wall board of the underground pipe gallery is now provided, so as to solve the problem that the existing ordinary mix ratio concrete is used to coat the wall of the wall board of the underground pipe gallery, which is prone...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00482C04B18/08C04B14/28C04B14/068C04B24/24C04B2103/0068
Inventor 桂强王桂玲马明磊解庆贺连春明吴仁波刘后华周述美
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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