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Control method preventing concrete cracks

A control method and technology for concrete, applied in the treatment of building materials, sustainable waste treatment, solid waste management, etc., can solve the problems of corrosion, reduce the ability of building structures to resist loads, damage the appearance and image, etc., and achieve good results , the effect of improving quality

Inactive Publication Date: 2014-04-30
CHANGSHU ANCIENT STYLE GARDEN CONSTR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the width of concrete cracks exceeds the specified limit, it will affect the applicability and durability of buildings and components. Structural Integrity and Rigidity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Control method of the present invention is as follows:

[0013] Before construction, do a good job in design and preparation:

[0014] Deal with the structural design under constraints. When the structure does not have enough room for deformation, rationally arrange structural steel bars in the structural design to prevent cracks.

[0015] The stress concentration caused by the sudden change of the structural section should be avoided as far as possible. If it is unavoidable due to structural or modeling reasons, etc., the reinforcement measures such as structural reinforcement should be fully considered; the shrinkage compensation concrete technology should be actively used.

[0016] Arrange the cross-working time of various types of work as reasonably and scientifically as possible. After the steel bars at the bottom of the slab are bound, the line pipes should be interspersed in time and before the formwork is sealed and closed. Effectively reduce the number of oper...

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Abstract

The invention relates to a control method preventing concrete cracks. The control method includes the steps: 1) reasonably configuring structural reinforcements in structural design before construction and preventing the cracks; 2) selecting and matching concrete materials by doping coal ash or high-effect water reducing agents in concrete; 3) removing seepage and water and bubbles inside the concrete by the aid of vertical vibrated concrete, secondary vibrating and secondary plastering technology. The method solves the technical problem that the concrete easily cracks, fine effects are achieved, and the quality of a concrete product is improved.

Description

technical field [0001] The invention relates to a construction method, in particular to a control method for preventing concrete cracks. Background technique [0002] Concrete is a heterogeneous brittle material formed by mixing sand and gravel aggregates, cement, water and other external materials. Due to a series of problems such as concrete construction and its own deformation and constraints, there are many micro-pores, air pockets and micro-cracks in the hardened concrete. When the large-volume concrete is hardened, a large amount of heat of hydration will be released, resulting in excessive internal temperature of the concrete. High, often with many cracks. [0003] Micro-cracks do not harm the load-bearing, anti-seepage and other functions of concrete, but after the concrete is subjected to load, temperature difference, etc., micro-cracks will continue to expand and connect, and finally form visible cracks. When the width of concrete cracks exceeds the specified lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/00E04G21/06C04B28/00C04B18/08
CPCY02W30/91
Inventor 顾振良孙召龙唐永峰
Owner CHANGSHU ANCIENT STYLE GARDEN CONSTR CORP
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