添加剂剂量对改善沥青紫外线老化作用的影响分析

Analysis of Additives Dosage to Asphalt Ultraviolet Radiation Anti-Aging Performance

利用室内紫外线加速老化系统,在确定紫外线对沥青薄膜的老化作用后,采用不同种类的紫外线吸收剂对沥青的抗紫外老化性能进行改善。室内试验结果表明,同一种添加剂在不同剂量时对沥青性能的改善程度各不相同,且某些添加剂在合适剂量时对沥青抗紫外线老化性能有着显著的改善效果。

After the aging effect of Ultraviolet Radiation to asphalt thin film being calibrated, the different Ultraviolet Radiation absorbents is used to modify the asphalt performance. The test result shows that the variation of absorbent dosage will affect the promotion of asphalt performance. There exists specific proper dosage for certain absorbent to achieve the most significant anti - ultraviolet radiation performance.