Ice-melting snow-removing asphalt mixture, preparation method thereof, ice-melting snow-removing asphalt concrete pavement and construction method thereof

Abstract

The invention provides an ice-melting snow-removing asphalt mixture, a preparation method thereof, an ice-melting snow-removing asphalt concrete pavement and a construction method thereof, and relatesto the technical field of pavement construction. The preparation method disclosed by the invention comprises the following steps: (a) on the basis of determining the synthesis gradation of an asphaltmixture without a salinization substance, taking the salinization substance as a filler, adjusting the gradation of the asphalt mixture by screening the salinization substance, and determining an asphalt-aggregate ratio a according to a target mixing ratio, on the basis of the asphalt-aggregate ratio a of the asphalt mixture, adopting the salinization substance to replace a part of mineral powder, conducting mix proportion design again, and determining the optimal asphalt-aggregate ratio of the asphalt mixture doped with the salinization substance and the gradation of the asphalt mixture through a Marshall test; and (b) adding raw materials in the asphalt mixture according to the mixing sequence, and conducting mixing to obtain the mixture. According to the invention, the road skid resistance and the ice melting and snow removing performance of the asphalt concrete pavement can be improved.

Description

technical field [0001] The invention belongs to the technical field of pavement construction, and in particular relates to an ice-melting and snow-removing asphalt mixture and a preparation method thereof, an ice-melting and snow-removing asphalt concrete pavement and a construction method thereof. Background technique [0002] The transportation industry is one of the major arteries of the national economy and an important part of the basic structure of sustainable economic growth. With the rapid development of my country's economy and traffic construction, roads in most areas will be affected by ice and snow, especially when the road surface is covered with snow, its anti-skid performance will drop sharply, which will easily cause traffic jams and accidents. Disasters seriously affect people's normal life. In order to solve this problem, melting ice and snow asphalt concrete pavement has become an important task of research in related fields. [0003] At present, ice-melt...

AI Technical Summary

Problems solved by technology

[0004] The existing ice-melting and snow-melting asphalt concrete pavement, such as halide self-snow-melting asphalt pavement, that is, the road with self-snow-melting structure made by adding salt to the asphalt mixture, mainly has the following problems: the asphalt and stone materials cannot be optimized during construction. The amount of raw materials such as salts and salts leads to a large amount of raw materials, and the overall cost is high, which also affects the performance of asphalt mixture; the construction process is complicated; the performance of ice-melting and snow-melting asphalt concrete needs to be improved

Images