Concrete for quick pavement repair

Abstract

The invention discloses concrete for quick pavement repair, and belongs to the field of concrete. The concrete for quick pavement repair comprises concrete grout and a pavement with an original concrete layer paved on the upper surface, the original concrete layer has cracks, the cracks are filled with the concrete grout, and the cracks need to be manually reconstructed before the concrete grout fills the cracks. The manual reconstruction requires the use of a reconstruction operation device, and the reconstruction operation device includes an operating rod, a first drilling device and a second drilling device. Before filling the cracks with repair materials such as the concrete, the cracks are reconstructed, the bottom ends and the side walls of the cracks are separately drilled by the first drilling device and the second drilling device to increase the contact surface and the frictional force of contact between the concrete grout and the cracks, the attaching degree of the repair materials such as the concrete to the cracks is improved, the repair materials such as the concrete does not prone to breaking away from the cracks, and the number of times for repairing is greatly reduced.

Description

technical field [0001] The invention relates to the field of concrete, and more specifically relates to a concrete for rapid repair of road surfaces. Background technique [0002] After the concrete pouring construction, if the maintenance is not paid attention to, cracking and faulting will easily occur. Because concrete is a quasi-brittle material with low tensile strength and poor toughness, cracks commonly exist in concrete structures that are poorly constructed and maintained, and are often subjected to various dynamic and static loads during use. The shrinkage and expansion caused by changes in humidity and humidity, as well as the physical and chemical erosion of ambient gases and liquids, cause great cracks and fractures in concrete, seriously destroying the traffic capacity of the road, and some even cause serious damage to the road. paralysis. At present, there are more fluoroaluminate fast-hardening cement system repair materials, and the compressive strength ca...

AI Technical Summary

Problems solved by technology

[0004] The repair materials in the above scheme, including the existing concrete, are often directly poured into the cracks of the road surface when the existing concrete is repaired. Concrete and other repair materials in the cracks are easy to separate from the original concrete layer of the road surface, causing secondary cracks, and construction personnel need frequent repairs

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