A non-destructive bridge deck concrete pavement layer crack treatment construction method

A construction method and concrete pavement technology, which is applied to bridges, bridge maintenance, bridge reinforcement, etc., can solve problems such as unsatisfactory results and high construction costs, and achieve the effects of reducing maintenance costs in the later period, ensuring construction quality, and being economical and reasonable

Pending Publication Date: 2018-12-18
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned existing bridge deck concrete pavement micro-crack treatment, such as structure safety, dust and construction waste, high construction cost, and unsatisfactory effect, and provide a crack treatment with low cost, environmental protection and safety. Non-destructive bridge deck concrete pavement crack treatment construction method that reduces maintenance costs in the later period

Method used

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Embodiment Construction

[0024] The present invention will be further elaborated and illustrated below in conjunction with specific embodiments.

[0025] A construction method for treating cracks in a non-destructive bridge deck concrete pavement layer, the construction method comprising:

[0026] (1) For the treatment of fine cracks with a width not greater than 0.15mm, the construction process: foundation treatment → brushing sealant → air tightness test → laying anti-crack base cloth. The specific steps are:

[0027] Step 01) Basic treatment: after the sandblasting of the bridge deck is completed, the panel is cleaned;

[0028] Step 02) Apply the sealant: Use a small spatula to scrape the sealant onto the cracks, with a thickness of about 0.8-1.2mm and a width of 20-30mm. When applying the glue, prevent small holes and air bubbles, and scrape it evenly. Ensure tight and reliable closure;

[0029] Step 03) Air-tightness test: After the crack is closed, a compressed air leak test should be carried...

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Abstract

The invention discloses a non-destructive bridge deck concrete pavement layer crack treatment construction method. the method comprises the following steps: (1) carrying out surface sealing treatmentfor cracks with a width not greater than 0.15 mm, sealing with special epoxy resin glue or cement slurry, spreading a layer of hot asphalt after surface sealing, and laying anti-cracking base cloth for waterproofing treatment; (2) For the cracks between 0.15 mm and 3 mm in width, the epoxy resin glue is poured into the cracks by pressure grouting method. The technological steps are as follows: design hole arrangement-drilling -air blowing hole cleaning-embedding needle and sealing cracks-preparing grouting fluid-grouting-inspection. The invention aims at overcoming the shortcomings of the prior bridge deck concrete pavement layer that the structure is safe, dust and construction waste are caused, the construction cost is high, and the effect is not ideal, and provides a non-destructive bridge deck concrete pavement layer crack treatment construction method with low cost of crack treatment, environmental protection safety and reduced maintenance cost in the later period.

Description

technical field [0001] The invention belongs to the technical field of infrastructure engineering, and relates to a construction method for crack treatment of a non-destructive bridge deck concrete pavement layer. Background technique [0002] With the development of traffic construction, the requirements for project quality are getting higher and higher. However, the excessive pursuit of construction progress has resulted in lax engineering quality requirements during the construction process and some common quality problems. Among them, tiny cracks on the surface of the bridge pavement concrete layer is a typical and frequent quality problem, which directly affects the structural quality of the pavement layer and the waterproof effect of the bridge deck, leaving quality hidden dangers and increasing the later maintenance of the entire project. cost and difficulty. [0003] In recent years, with the increase of traffic volume and axle load in China, expressways and urban ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E01C23/09
CPCE01C23/096E01C23/098E01D22/00
Inventor 闻艳萍李长贵杜前春谢艳利
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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