摘要
对两种不同SBS掺量的SBS改性沥青进行了在不同温度和时间下的RTFOT老化试验,检测了残留物的软化点、针入度、延度1、35℃运动粘度及车辙因子,并同时检测了163℃下5 h的TFOT老化残留物样品的相应指标,分析了RTFOT与TFOT老化效果的相关性。探讨了RTFOT与TFOT在SBS改性沥青老化试验中的可互相替代条件。
Two types of SBS modified asphalt whose dosages of SBS were different were carried on rotated thin film oven tests（RTFOT） under the conditions of different aging time and temperature.The performance indexes of aged residues such as soft point,penetration,ductility,kinematic viscosity at the temperature of 135 ℃,factor of rut and so on were detected.The identical performance indexes of aged residues after thin film oven test（TFOT） under the temperature of 163 ℃ during 5 h were also detected.The correlation of aging effect on RTFOT and TFOT to SBS modified asphalt were analyzed.The conditions of substitute for RTFOT and TFOT in aging test of SBS modified asphalt were studied.
出处
《广州化工》
CAS
2011年第24期55-58,65,共5页
GuangZhou Chemical Industry
