天然沥青与基质沥青配伍性的应用研究

Natural Asphalt and General Compatibility of Asphalt Applied Research

采用两种沥青性能评价指标体系,对两种典型的天然沥青—TLA湖沥青和BRA岩沥青,分别按20%、25%、30%三种掺量进行改性,并对改性后的沥青进行配伍性研究。试验结果表明掺加天然沥青可有效提高基质沥青的耐高温、耐老化性能,当掺量在25%时效果最佳。

This article uses two asphalt performance evaluation system for two typical natural lake asphalt and bitumen-TLA BRA rock asphalt,at 20%,25% and 30%respectively for three kinds of dosage were modified,and change after the asphalt of compatibility studies conducted.The results showed that natural asphalt mixing asphalt can effectively improve the high temperature resistance,aging resistance,when content in the 25% best.