摘要
通过AH-70基质沥青及PG76-22改性沥青的短期热氧老化(RTFO)和模拟光氧老化试验,运用红外光谱分析法研究真实环境中太阳光中紫外光对沥青胶结料的影响。探讨了沥青胶结料在紫外光和氧的双重因素的作用下,化学组分中各官能团的变化规律;从化学结构方面阐述了沥青胶结料的老化机理。
From the experiments of short-term aging （Rolling Test of Film Oxidation（RTFO））and photooxidation aging of AH-70 original asphalt and SBS PG76-22 modified asphalt, this paper examined the effects of UV-light on asphalt by using FI-IR theory. The variation rules of function group under the dual-functions of UV-light and oxidation and the aging mechanism of modified asphalt from chemical aspect also was explored.
出处
《国外建材科技》
2008年第6期86-90,共5页
Science and Technology of Overseas Building Materials
基金
湖北省交通科技攻关项目(鄂交科教2005-361)
