摘要
SBS改性沥青与普通沥青相比,其路用性能得到大幅度的提高。就SBS改性沥青的改善机理进行了试验研究,通过对沥青组分分析发现,随着改性剂剂量的不同,由于高聚物的吸胀作用,沥青中的饱和分的减少量呈抛物线的变化趋势,而沥青质和胶质的增加量可以近似地拟合为多项式;SBS改性沥青的相容稳定性不仅与SBS的结构有关,还与改性剂的剂量和沥青种类有关。研究结果表明,L-SBS的相容稳定性比S-SBS的稳定性好,饱和分、胶质含量较多的沥青,与SBS的相容稳定性较好。
compared with ordinary asphalt, the performance of SBS modified asphalt has been greatly improved. In this paper, the improvement mechanism of the improvement of asphalt test research, through the analysis of asphalt composition, due to the absorption of high polymer, found that with the modified agent dose of different, the amount of asphalt in the saturation point of a parabolic trend, and the increase of asphalt and colloid can be approximated by polynomial. The compatible stability of SBS modified asphalt is not only related to the structure of SBS, but also with the dosage of modifier and the type of asphalt. The experimental results show that the compatible stability of L - SBS is better than that of S - SBS, and the content of the asphalt with more saturation and colloid content is better than that of SBS.
出处
《北方交通》
2016年第4期84-87,共4页
Northern Communications
关键词
SBS
改性沥青
改善机理
饱和分
胶质
相容稳定性
SBS
Improvement mechanism
Saturation point
Parabola
Colloid
Compatible stability
