Antiskid and wear-resistant colored asphalt concrete

Abstract

The invention discloses anti-skid and wear-resistant colored asphalt concrete. The asphalt concrete is prepared from, by weight, 5-7 parts of asphalt, 4-63 parts of steel slag, 25-75 parts of broken stone and 7-11 parts of mineral powder, totaling 100 parts. Color coating comprises the following components in parts by weight: 30-40 parts of epoxy resin, 25-30 parts of a curing agent, 2-10 parts ofa coloring agent, 1-3 parts of rock asphalt, 20-30 parts of TiO2, 6-10 parts of a diluent, 5-10 parts of water, 4-6 parts of a dispersing agent and 0.2-2.0 parts of an emulsifier, based on 100 parts.The concrete is uniformly sprayed with 1.1-2.0 kg / m<2> of the coating to finish the preparation. The rock asphalt, steel slag and other materials are utilized to prepare the colored asphalt concrete,thereby enhancing the skid resistance, wear resistance and color retention capacity of the product. The colored asphalt concrete is suitable for road sections with anti-skid and color induction requirements, such as bus lanes.

Description

technical field [0001] The invention belongs to the field of road engineering and relates to an anti-skid and wear-resistant colored asphalt concrete. Background technique [0002] Build colored asphalt pavement on special road sections such as bus lanes, road intersections, and landscape roads to guide traffic and beautify the landscape. At present, the types of colored asphalt pavement in the domestic market are generally divided into two categories: decolorization process (colored asphalt) and mixed process (color spraying.) [1] . The decolorization process refers to the binder made by blending and modifying chemical materials such as petroleum resin and SBS modifier. The raw material cost of the colored asphalt prepared is high and the consumption is large, the processing procedure is complicated and the processing cost is high; Surface spraying spraying agent is used to change the color of the pavement. Tracking and observation of the colored pavement using the mixed ...

AI Technical Summary

Problems solved by technology

The decolorization process refers to the binder made by blending and modifying chemical materials such as petroleum resin and SBS modifier. The raw material cost of the colored asphalt prepared is high and the consumption is large, the processing procedure is complicated and the processing cost is high; The surface spraying spraying agent is used to change the color of the pavement, and the follow-up observation of the colored pavement using the mixed process found that the colored pavement has poor performance in terms of skid resistance, wear resistance, and color retention

The reason: first of all, the current color spraying on the market is mixed with carbon black, and carbon black is often used as a lubricant, which will reduce the skid resistance of the colored pavement when used in the paint

Secondly, the sprayed color pigments fill the open gaps of the road surface, reducing the depth of the road surface structure, thereby reducing the anti-skid performance of the road surface

Finally, the polishing value of the stone is small. During the road use, the surface texture of the stone is polished, and the color spray is also worn away, resulting in serious loss of color pavement spray and poor color retention.

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