Construction performance modified composite modified asphalt material

Abstract

The invention discloses an improved constructed composite modified tar, which is composed of tar, EVA with weight at 1-10% corresponding to tar weight and polypropylene wax with weight at 0.5-10% corresponding to tar weight. The invention improves high-temperature property of tar material and constructing property, which is stable to preserve with simple manufacturing technique.

Description

technical field [0001] The invention relates to the technical field of a composite modified asphalt material for improving construction performance. Background technique [0002] Adding polymers to asphalt has been used to improve the performance of asphalt for decades. US Patent US5002987 reports the use of styrene-butadiene rubber to improve the performance of asphalt, but styrene-butadiene rubber mainly improves the low-temperature performance of asphalt, and the improvement of high-temperature performance is not obvious . Chinese patent CN1287133A discloses the method of adopting SBR and SBS composite modified asphalt, but the shortcoming of this method is that because of adopting SBS, its processing equipment needs colloid mill, and the production process is more complicated, simultaneously because added sulfur wherein, in production During the process, toxic hydrogen sulfide gas will be produced, which will pollute the environment. Adding EVA to asphalt to improve th...

AI Technical Summary

Problems solved by technology

[0002] Adding polymers to asphalt has been used to improve the performance of asphalt for decades. US Patent US5002987 reports the use of styrene-butadiene rubber to improve the performance of asphalt, but styrene-butadiene rubber mainly improves the low-temperature performance of asphalt, and the improvement of high-temperature performance is not obvious

Chinese patent CN1287133A discloses the method of adopting SBR and SBS composite modified asphalt, but the shortcoming of this method is th