CAJ | 학술논문

Sasobit温拌排水沥青路面以其良好的环境效益和使用效果而受到越来越多的关注，但试验表明其低温和疲劳性能指标有所下降。为了提高其性能指标，采用掺加不同剂量（1%，3%，5%，7%）食盐于Sasobit高粘沥青中，通过室内试验模拟沥青路面使用过程中沥青的短、长期老化，并进行相应的流变性质试验、弯曲蠕变劲度试验以及布氏旋转粘度试验，试验结果表明：相比较原样髙粘沥青，Sasobit高粘沥青的车辙因子有较大幅度的提升，蠕变劲度有所下降；添加食盐的Sasobit高粘沥青的车辙因子略有降低，但蠕变劲度和疲劳因子随食盐掺加量的增加有先减后增的趋势；进一步的粘温曲线图表明最佳的食盐用量为沥青质量的5%。
Sasobit온반배수력청로면이기량호적배경효익화사용효과이수도월래월다적관주，단시험표명기저온화피로성능지표유소하강。위료제고기성능지표，채용참가불동제량（1%，3%，5%，7%）식염우Sasobit고점력청중，통과실내시험모의력청로면사용과정중력청적단、장기노화，병진행상응적류변성질시험、만곡연변경도시험이급포씨선전점도시험，시험결과표명：상비교원양고점력청，Sasobit고점력청적차철인자유교대폭도적제승，연변경도유소하강；첨가식염적Sasobit고점력청적차철인자략유강저，단연변경도화피로인자수식염참가량적증가유선감후증적추세；진일보적점온곡선도표명최가적식염용량위력청질량적5%。
Sasobit warm mix drainage asphalt pavement has become increasingly popular due to its environmental benefits and using effects. However, test results show that its low temperature and anti-fatigue performance indica-tors have a certain decline. In this study, four different doses (1%, 3%, 5%, 7%) of salt were added to the Sasobit asphalt to improve the performance indicators. Laboratory tests were used to simulate short and long term aging as-phalt in the process of construction and pavement usage. A series of binder tests including bending beam rheome-ter (BBR), dynamic shear rheometer (DSR) and Brookfield viscosity tests were conducted. Results show a slight de-crease of G*/sinδfor Sasobit asphalt with salt and the creep stiffness and G*/sinδpresent a tendency of declining first and then increasing with the increase of salt. The viscosity-temperature curve shows that the best content of salt is 5%.