论文部分内容阅读
为了研究弹性恢复和回弹恢复在反应橡胶沥青弹性恢复性能方面的差异以及两者之间的相关性,进行了不同条件下的橡胶沥青性能试验。结果表明:胶粉掺量在18%~24%范围内,两指标与胶粉掺量、Haake黏度(177℃)以及两指标之间均线性正相关,回弹恢复对胶粉掺量及其引起的黏度变化更敏感,两指标在反应胶粉掺量对弹性恢复性能的影响方面具有很好的等效性。反应温度在170~200℃范围内,弹性恢复受温度影响更显著,两指标受反应温度影响的规律不完全一致,回弹恢复和Haake黏度的规律一致。反应时间在45 min~4 h内,两指标与反应时间、Haake黏度以及两指标之间均线性正相关,弹性恢复对反应时间及其引起的黏度变化更敏感,两指标在表征反应时间对弹性恢复性能的影响方面较为一致。
In order to study the difference between elastic recovery and elastic recovery of elastic recovery and rebound recovery in the elastic recovery performance of reactive rubber asphalt and the correlation between them, rubber asphalt performance tests under different conditions were carried out. The results showed that the content of rubber powder was in the range of 18% ~ 24%, and the two indexes were linearly and positively correlated with the content of rubber powder, Haake viscosity (177 ℃) and the two indexes. The change of viscosity is more sensitive. The two indexes have good equivalence in the influence of reactive powder content on elastic recovery performance. When the reaction temperature is in the range of 170 ~ 200 ℃, the elastic recovery is more affected by the temperature. The laws of the two indexes affected by the reaction temperature are not exactly the same, and the law of springback recovery and Haake viscosity are the same. The reaction time was within 45 min ~ 4 h. The two indexes were linearly correlated with the reaction time, the Haake viscosity and the two indexes. The elastic recovery was more sensitive to the reaction time and the change of the viscosity. The two indexes, The impact of recovery performance is more consistent.