Concrete structure repairing construction method

A technology of concrete structure and construction method, applied in building maintenance, building structure, construction and other directions, can solve the problems of poor durability and low bonding strength, and achieve the effects of convenient construction, low cost and improved crack resistance.

Inactive Publication Date: 2020-12-04
泰宏建设发展有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a concrete structure repair construction method to solve the technical problems of low bond strength and poor durability in concrete repair and reinforcement

Method used

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  • Concrete structure repairing construction method
  • Concrete structure repairing construction method
  • Concrete structure repairing construction method

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Embodiment 1

[0033] Embodiment 1: A kind of concrete structure repair construction method, see figure 1 The construction process of this method is: construction preparation→existing concrete surface treatment→drilling, embedding anchor bars→smearing interface agent→mixing fiber concrete→pouring concrete→concrete curing, finished product protection.

[0034] (1) Construction preparation

[0035] Before carrying out concrete bond repair and reinforcement or construction joint treatment, it is necessary to conduct a comprehensive investigation and analysis of the existing concrete structure to find out the strength level, damage status, bond repair area, etc. of the existing concrete. Based on the analysis of the basic information obtained from the survey, a detailed construction plan will be prepared. According to the established plan, entrust a qualified laboratory to determine the mix ratio. The mix ratio should not only take slump, expansion, and strength as assessment indicators, but al...

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Abstract

The invention discloses a concrete structure repairing construction method, and aims to solve the technical problems of low bonding strength and poor durability in concrete maintenance and reinforcement. The method comprises the following steps of (1) treating the surface of a to-be-repaired concrete structure to form an uneven shape, and measuring the surface roughness of the to-be-repaired concrete structure by adopting a sand filling method after the treatment is completed; (2) drilling a hole in the surface of the treated concrete structure, burying an anchoring rib and smearing an interface agent; (3) preparing fiber concrete, namely mixing fibers with coarse aggregate and fine aggregate, performing dry mixing for 30 seconds to 60 seconds, adding cement, a mineral admixture, water anda concrete admixture, and performing stirring for 90 seconds to 120 seconds to obtain the fiber concrete; and then pouring the fiber concrete on the surface of the concrete structure treated in the step (2). The high-performance fiber concrete is adopted to bond, repair and reinforce the existing concrete, the durability of the bonding surface is greatly improved, and the maintenance and repair cost can also be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a construction method for repairing concrete structures. Background technique [0002] While concrete structures are widely used in water conservancy, civil engineering, transportation, ports and other fields, they are facing serious durability problems. With the increase of service life, concrete structures have successively produced considerable Serious aging, disease and accidents have seriously affected the normal use of existing buildings and the safety of the national economy and people's lives and properties. Due to economic and social factors, it is often inconvenient to dismantle and rebuild concrete structures that are aging, diseased, or damaged. Instead, they are repaired and reinforced when technically feasible and economically reasonable after strict identification and evaluation. [0003] The enlarged section method uses new concrete to strengthen the ex...

Claims

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Application Information

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IPC IPC(8): E04G23/02
CPCE04G23/02E04G23/0296
Inventor 郭强李留波张国杰李水才付艳军郭永良王海东付燕霞宋广明秦晓艺王宏伟牛莹莹张东李兴鹏王增亮陈麒麟路闰凯
Owner 泰宏建设发展有限公司
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