A kind of colored pavement binder and its preparation method

Abstract

This invention discloses a colored pavement cementing material, which comprises the following components by weight: 7-27% of softener, 71% of resin tackifier, 5-13% of SBS (styrene-butadiene-styrene block copolymer), 5-15% of SBR (styrene butadiene rubber), 0-16% of plasticizer, 4-9% of coloring agent, 1-5% of colorants dispersing auxiliary, 0-4% of ultraviolet absorbent, 0-4% of antioxygen, and 0-8% of crosslinking agent. The preparation method comprises the following steps: placing the softener in a reactor, heating to a temperature of 140-150 DEG C, continuously heating, stirring and starting to add the resin tackifier, continuously stirring with a temperature of 150-180 DEG C until the resin tackifier is completely dissolved, adding the SBS to dissolve, adding the plasticizer to dissolve, and adding the SBR to dissolve, and finally adding the rest materials, stirring to sufficiently dissolve, and air cooling to get the colored pavement cementing material.

Description

technical field [0001] The invention relates to the field of road materials, in particular to a colored road surface binder and a preparation method thereof. Background technique [0002] The coordinated development of urban traffic and environment is one of the important goals of urban construction in the 21st century. As an important symbol in the pace of urban modernization, colored pavement can effectively improve the road space environment. The colored pavement can be better coordinated with the surrounding buildings, can effectively beautify the urban environment, reflect the characteristics and style of the city, and enhance the image and charm of the entire city. Because the colorful pavement is colorful, it can make people feel relaxed, relieve eye fatigue, and satisfy people's deep psychological needs for aesthetics, making the road space a high-quality living space loved by the society. At the same time, colored asphalt pavement can effectively alleviate the urb...

AI Technical Summary

Problems solved by technology

However, the preparation temperature required for the preparation of colored asphalt by this method is high, which increases a large amount of energy consumption, and the high temperature stability, low temperature crack resistance, water stability and color durability of the obtained colored asphalt are difficult to meet the current actual application requirements.

[0009] From the above analysis, the main disadvantages of the prior art and the prepared colored asphalt (or colored asphalt binder) are: complex preparation process, difficult follow-up treatment, environmental pollution; high temperature required for preparation, long time, large energy consumption, color The preparation cost of asphalt (or colored asphalt binder) is high; the road performance and color durability of the obtained colored asphalt (or colored asphalt binder) have been difficult to meet the current actual application requirements

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