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

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 ...

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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