Bridge self-repairing paving method based on cement-based composite material

A composite material and composite material component technology, applied in the field of bridge self-healing pavement, can solve the problems of high repair construction complexity, low maintenance effect stability, low repair efficiency, etc., so as to reduce maintenance time, high construction efficiency, and low cost The effect of chemical adhesion
CN110606702AInactive Publication Date: 2019-12-24维特国际新材料(武汉)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
维特国际新材料(武汉)有限公司
Publication Date
2019-12-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a bridge self-repairing paving method based on a cement-based composite material. The method comprises the following steps: 1) preparing materials: respectively weighing cement, fly ash, rubber powder, quartz sand, polyvinyl alcohol fibers, a high efficiency water reducing agent and water; with the mass ratio of the fly ash to the cement being 2-2.5, and the particle size range of the rubber powder being 40-80 meshes; 2) preparing a test piece; 3) maintaining the test piece; 4) prefabricating cement-based composite material components; and 5) performing pavement: conveying a roller wound with the prefabricated cement-based composite material components to a bridge construction site, gradually releasing the prefabricated cement-based composite material components, and paving the components onto a bridge base layer or a bridge surface layer till pavement is completed. The method is high in construction efficiency, convenient to construct and low in construction cost.
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Description

technical field

[0001] The invention relates to a composite material construction method. More specifically, the present invention relates to methods of self-repairing bridge paving based on cement-based composite materials. Background technique

[0002] Traditional road pavement materials (asphalt concrete or cement concrete) are easy to crack and produce cracks under the combined action of traffic load and surrounding environmental factors, and cracks are inevitable within the service life, so the pavement materials are always working with cracks within the service life state. The surrounding environment and stress state of the steel bridge deck pavement are more complex and harsh. Even if epoxy asphalt concrete is used as the steel bridge deck pavement, crack damage is still the main form of failure. Due to the appearance of cracks, harmful substances such as water and chloride ions penetrate into the connecting layer between the pavement and the steel plate through the...

Claims

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