Color asphalt ultrathin wearing layer and preparation method thereof

Abstract

The invention discloses a color asphalt ultrathin wearing layer and a preparation method thereof. The preparation method mainly comprises the following steps of: producing a mixed material: mixing 34-36 parts of 5-10 mm macadam, 11-13 parts of stone chips with a grain size less than 3 mm and 0.8-1.2 parts of mineral powder or cement, then adding 2-3 parts of color asphalt and mixing to obtain a color asphalt mixed material; paving: firstly spraying a layer of polymerized, modified and emulsified asphalt on the lower bearing layer of a road surface by the spraying system of an asphalt paver and then uniformly paving the color asphalt mixed material on a road by the spiral distributor of the asphalt paver; and statically rolling by using a double-steel wheel road roller and forming the road surface. The color asphalt ultrathin wearing layer obtained by using the method has relatively high use value, simple construction method, easy maintenance and low manufacturing cost and can meet the requirements of the color road surface.

Description

technical field [0001] The invention relates to an ultra-thin wearing layer of colored asphalt pavement and a preparation method thereof, is a relatively economical construction scheme of colored asphalt pavement that can obviously improve traffic conditions, and belongs to the technical field of highway pavement construction. Background technique [0002] Colored asphalt pavement has the functions of obviously beautifying the road environment, better coordinating with the surrounding architectural art, beautifying the city, inducing traffic, improving road traffic safety, and greatly improving the monotony of ordinary black pavement, so it is becoming more and more It is widely used in areas such as new roads, squares, and traffic guidance sections of high-grade highways in iconic cities, so as to reflect the characteristics and styles of a country or a city. At present, colored asphalt pavement has been built in various degrees in various parts of our country. [0003] Ho...

AI Technical Summary

Problems solved by technology

According to the current hot mix asphalt mixture, the thickness of 3-4cm is the lower limit of the design, and it is difficult to further reduce the thickness, because the thickness of the structural layer is too thin to form an effective whole, which may cause excessive temperature drop during construction. It is too fast to carry out timely and effective rolling, and it is easy to fall off after opening to traffic.

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