Construction method for repairing cracks

Abstract

The present invention discloses a construction method for repairing cracks (1), comprising the following steps: i) coating a solvent (2) capable of interfusing with asphalt and dust to improve the caking property between the seal repairing material and cracks (1); ii) scattering high-intensity fibers (3) with suitable length and size in diameter, usually less than 1 mm on the cracks (1), wherein longitudinal directions of most fibers (3) are crossed with the trends of the cracks (1), and lapped with each other or form a reticular structure; iii) pouring asphalt or macromolecule glue into the cracks (1), or adhering a strip repairing material (4) onto the cracks (1), whereby the fibers (3) are bonded to the seal repairing material automatically. The construction method enables the repairing material to be bonded to and interfused with the fibers (3), achieving a repairing effect with excellent expansibility and low-temperature resistance.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a construction method for preventing cracks after repair.BACKGROUND OF THE INVENTION[0002]Cracks occur on roads and bridges due to various reasons. If these cracks are not timely treated and sealingly repaired, after rainwater flows into the cracks, the roads and bridges will be damaged more quickly under pressure of fully-loaded vehicles. This shortens life cycle of the roads and bridges.[0003]The cracks need to be sealingly repaired to prevent water from flowing into the cracks. Although various construction methods are available for sealing cracks, for example, pouring asphalt into the cracks, or coating asphalt on the crack surfaces, or adhering strip repairing material on the crack surfaces. All these methods can seal the cracks and prevent rainwater from flowing into the cracks. However, in the cases of pressure from loaded vehicles, weather changes, and crack expansion, the repairing materials such as the asphalt se...

AI Technical Summary

Benefits of technology

The present invention provides a method for repairing cracks on the road using a solvent that interfuses with asphalt and dust on the crack surfaces, preventing the repairing material from separating from the crack surfaces. The solvent also bonds with high-intensity fibers that resist cracking, forming a flexible seal repairing layer that prevents cracks from re-opening. This results in a more durable and effective repair.

Problems solved by technology

Cracks occur on roads and bridges due to various reasons.

If these cracks are not timely treated and sealingly repaired, after rainwater flows into the cracks, the roads and bridges will be damaged more quickly under pressure of fully-loaded vehicles.

This shortens life cycle of the roads and bridges.

However, in the cases of pressure from loaded vehicles, weather changes, and crack expansion, the repairing materials such as the asphalt sealing the cracks tend to aged, break, crack, even separate from the cracks, and consequently water flows into the cracks, causing damages to the roads and bridges.

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