Bituminous pavement cold filling mixture and preparation method and application method thereof

Abstract

The invention belongs to the technical field of bituminous pavement cold filling, and discloses a bituminous pavement cold filling mixture and a preparation method and application method thereof. Thebituminous pavement cold filling mixture comprises A components and B components, wherein the weight ratio between the A components and the B components is (35-55):100, the A components comprise, by weight, 90-120 parts of concrete, 45-75 parts of water, 0.1-0.5 part of early strength agent and 1-3 parts of fatty alcohol alkoxy ether; the B components comprise, by weight, 50-80 parts of rubber modified asphalt, 200-300 parts of building stone and 5-10 parts of trichloro ethylene; the preparation method of the bituminous pavement cold filling mixture comprises the following steps of 1) A component preparation and 2) B component preparation; the application method of the bituminous pavement cold filling mixture comprises the following steps of c1, pit slot paving; c2, grouting and c3, traffic opening after flushing. The bituminous pavement cold filling mixture and the preparation method and application method thereof have the advantages that the permeability performance and void ratio are reduced, the problem of bituminous pavement separation is solved, the influence of retarder thinner on the cold filling material is weakened, and the service life of the bituminous pavement is prolonged.

Description

Technical field [0001] The invention belongs to the technical field of asphalt pavement cold patching, and specifically relates to an asphalt pavement cold patching mixture and a preparation method and application method thereof. Background technique [0002] In order to solve the problem of unconditional repair of asphalt pavement potholes when hot material repair is carried out in low temperature, rainy weather, and small amount of work, a variety of cold repair mixtures for asphalt pavement have appeared on the market. These cold repair mixtures are generally diluted with organic solvents, which increase the late strength of the material by letting the solvent volatilize after the repair. [0003] In the south, if the cold filling material is a continuous dense gradation, the porosity is low, which is not conducive to solvent volatilization, the later strength is low, and it is easy to soften and cause segregation such as depressions; if the cold filling material uses a coarser ...

AI Technical Summary

Problems solved by technology

[0003] In the south, if the cold patching material is continuously densely graded, the porosity is low, which is not conducive to solvent volatilization, and the later strength is low, and it is easy to soften and cause segregation such as depressions; if the cold patching material adopts a coarser intermittent gradation, the voids are large , often soaked by rainwater, resulting in loosening and forming potholes; therefore, the service life of the cold patching process for asphalt pavement in the south is not long, generally less than 1 month, and requires multiple repairs, which affects the normal traffic of the road