不同掺量硅藻土改性沥青胶浆性能研究

不同掺量硅藻土改性沥青的三大指标对比试验结果表明,掺加硅藻土对于沥青的感温性、高温稳定性有所改善,改善效果随掺量增加而提高;不同掺量的硅藻土改性沥青PI值比基质沥青明显有增大趋势,当量软化点T800较基质有所升高,当量脆点T1,2降低,并且都在11％-12％处出现峰值,表明掺量在11％～12％之间温度敏感性较低。

Research on performance of modified asphalt slurry in different contents of diatomite

The results from comparative tests for three major indexes for modified asphalt with different contents of diatomite have been shown that, the temperature susceptibility and the stability of asphalt at high temperature were improved, and improvements achieved with increasing of content. There is an obvious increasing trend for PI value for modified asphalt with diatomite than the matrix, the equivalent softening point of T800 is higher than that of matrix, the equivalent crisp point T1 ,T2 decreases with the peak occurring in the content in 11% and 12%, with lower temperature sensitivity in the content between 11% and 12%.