Method for preparing colored micro-surfacing based on resin modified emulsified asphalt

Abstract

The invention discloses a method for preparing colored micro-surfacing based on resin modified emulsified asphalt. The method comprises the steps: synthesizing light-colored resin modified asphalt: sequentially adding the raw materials in percentage by mass under the condition of heating: 55% to 60% of extract oil, 30.5% to 32.5% of rosin resin, 2% to 4% of viscosity reducer and 7% to 9% of SBS block copolymer, and carrying out uniform mixing; synthesizing light-colored resin modified emulsified asphalt: adding dodectoluenesulfonic acid into the light-colored resin modified asphalt at the temperature of 165 DEG C to 175 DEG C, and carrying out mixing; then, adding an emulsifier aqueous solution into the mixture, carrying out mixed-melted shearing, and carrying out cooling, so as to obtain the light-colored resin modified emulsified asphalt; and enabling the light-colored resin modified emulsified asphalt to be matched with colored mineral aggregates, thereby preparing the colored micro-surfacing based on the resin modified emulsified asphalt. According to the method, the resin modified emulsified asphalt can be used for remarkably improving the adhesivity and color durability of a colored micro-surfacing mixture, the colored micro-surfacing has good pavement performance and wear resistance, the production cost of the raw materials is greatly reduced, and the cost is reduced by 20% or more.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and relates to a method for preparing colored micro-surfaces based on resin-modified emulsified asphalt materials. Background technique [0002] At present, colored micro-surfaces have been widely used in foreign developed countries. Its rich colors have broken the long-standing tradition of black and white on asphalt and cement concrete pavement. The application of colored micro-surfaces on roads can not only beautify the environment, give While providing people with a good visual experience, it can also induce traffic and make urban traffic more humane. Although the pavement technology of colored micro-surfaces is being gradually popularized and promoted at home and abroad at this stage, and its many advantages have been recognized by the industry, as a new type of pavement pavement material, its raw material production technology still needs to be perfected and improved. place. Beca...

AI Technical Summary

Problems solved by technology

Because the color micro-surface uses light-colored modified asphalt, toner and stones similar in color to the toner, the cost is much higher than that of ordinary asphalt pavement, so the cost of colored micro-surface greatly restricts the popularization and application of colored pavement. How to develop There is an urgent need to produce light-colored modified asphalt with superior performance and low price. In addition, the light-colored modified asphalt used in colored micro-surfacing is mainly decolorized by asphalt or synthesized by resin and light oil. Its performance is similar to that of asphalt. There is a large difference, and the use of toner also affects the performance of the mixture, but domestic standards for the design of colored micro-surfaces have not yet been established, and there is a lack of effective theoretical and practical guidance

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