不同填料沥青胶浆物理力学性能试验

发布时间：2018-02-13 03:09

本文关键词： 道路工程沥青胶浆温度敏感性冲击试验弯曲试验　出处：《吉林大学学报(工学版)》2014年06期 　论文类型：期刊论文

【摘要】：对掺量均为7%的矿粉沥青胶浆和硅藻土粉沥青胶浆进行了物理、力学性能试验,其中物理试验包括软化点、针入度及布氏黏度试验;力学试验包括小梁低温冲击试验及三点弯曲试验。沥青物理试验结果表明:硅藻土粉可以显著提升沥青高、低温性能,并利于弱化沥青的温度敏感性。力学试验结果表明:硅藻土粉沥青胶浆不仅具有更加优良的抗冲击性能,而且能够承受更大的低温变形,从而对硅藻土改性沥青混凝土的制备过程中硅藻土粉和矿粉的掺入比例设计具有一定的指导意义,有利于硅藻土改性沥青混凝土的推广使用。
[Abstract]:The physical and mechanical properties of mineral powder asphalt slurry and diatomite asphalt slurry were tested, including softening point, penetration test and Brinell viscosity test. The mechanical tests include low temperature impact test of trabeculae and three point bending test. The results of asphalt physical test show that diatomite powder can significantly improve the high and low temperature properties of asphalt. Mechanical test results show that diatomite asphalt slurry not only has better impact resistance, but also can withstand larger low temperature deformation. Therefore, it has certain guiding significance to design the proportion of diatomite powder and mineral powder in the preparation process of diatomite modified asphalt concrete, which is beneficial to the popularization and use of diatomite modified asphalt concrete.
【作者单位】：吉林大学交通学院;
【基金】：国家自然科学基金项目(51278222) 吉林大学研究生创新基金项目(20121079)
【分类号】：U414

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