摘要
针对沥青质含量较高的塔河原油,采用适当工艺开发出了符合JTG F40—2004技术要求的SBS改性道路沥青。通过加入稳定剂使SBS与基础沥青形成了较稳定的均匀微观结构,从而解决了SBS改性沥青的储存稳定性问题。常规方法评价结果表明,塔河原油SBS改性道路沥青具有较小的感温性以及优良的高低温性能。采用SHRP方法对塔河原油SBS改性道路沥青进行了评价,并与其它油种SBS改性沥青作了比较。结果表明,塔河原油SBS改性道路沥青的SHRP性能等级为PG70-34和PG76-34,具有非常好的高低温性能及抗疲劳开裂性能。
SBS modified paving asphalt samples from Tahe Crude oil were prepared by using suitable technique, and analysis results show that their properties well meet the requirements of JTG F40--2004 technical specification. It is observed that by adding stabilizing agent, a homogeneous micro-structure system of SBS and Tahe asphalt is formed, and thus, the storage stability of SBS modified Tahe asphalt is good. The results of conventional performance analysis indicate that Tahe SBS modified paving asphalt is less sensitive to temperature, and it possesses excellent high-low temperature performance. These paving asphalt samples were also evaluated by SHRP procedure. Test results show that Tahe SBS modified paving asphalt samples exhibit excellent performance of temperature response and resistance to fatigue cracking, which meet the performance grade of PG70-34 and PG76-34 respectively.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2012年第7期61-66,共6页
Petroleum Processing and Petrochemicals
关键词
塔河原油
SBS
改性
道路沥青
Tahe crude oil
SBS
modification
paving asphalt
