硅藻精土对沥青混合料低温性能的影响

Effects of Diatomite on Low Temperature Performance of Asphalt Mixture

将硅藻精土掺配在沥青混合料中,可以改善沥青混合料的物理力学性能,提高路面工程的质量。本研究采用室内试验的方法,得出沥青混合料的低温弯曲蠕变速率,对掺加硅藻精土的沥青混合料进行低温性能研究。通过室内试验,证实硅藻精土能够很好地改善沥青混合料的低温性能,并且随着硅藻精土掺量的增加,沥青混合料低温性能的改善程度呈现出一定的规律性。

The addition of diatomite can improve the physical-mechanical performance of asphalt mixture and enhance the quality of pavement engineering. An experimental investigation is undertaken in this research. The bending creep rate are tested. The low temperature performance of asphalt mixture which are filled with diatomite are studied. According to the laboratory experimental investigation, it is approved that diatomite can improve the low temperature performance of asphalt mixture and with the increasing of diatomite content the low temperature performance of asphalt mixture follows special rules.