摘要
在实验室采用粘温指数法、失重系数法和老化指数法分别考察了沈阳—铁岭(沈铁)、沈阳—本溪(沈本)公路段再生沥青及其原沥青辽河AH90的感温性能和抗老化性能,结果表明,它们的温度敏感性由弱到强的顺序为辽河AH90沥青<沈铁再生沥青<沈本再生沥青,但相差不大,表明废旧沥青的再生效果较为理想;用沈铁再生沥青混合料分别进行马歇尔稳定度试验、浸水马歇尔试验和冻融劈裂试验,考察其马歇尔稳定度、残留稳定度和冻融劈裂残留强度比,结果表明,沈铁再生沥青混合料与辽河沥青相比没有明显变化,能完全满足应用要求。
The anti aging property and temperature susceptibility of two regenerated road asphalts, from Shentie and Shenling highways, were investigated by testing their viscosity index, anti aging index and weight loss coefficient in laboratory. Compared with their original asphalt, Liaohe AH 90, the difference of their temperature susceptibilities was small, the original was the best and followed by Shentie and Shenling regenerated asphalts, which indicated that the regeneration effect of the used asphalts was good. The stability and water immersion tests as well as freezing breaking test of the Shentie regenerated asphalt mixture also showed no obvious change compared with the Liaohe AH 90, which could meet the service requirement.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2004年第4期58-62,共5页
Petroleum Processing and Petrochemicals
基金
辽宁省交通科学研究院资助项目
合同号:0204985。
