摘要
选取利用中海油36-1沥青制备的4种常用的中海油SBS改性沥青,分别进行针入度分级实验和多个温度下的动态剪切试验,测试沥青的25℃针入度、延度、软化点及其PG高温指标。在综合分析试验结果的基础上,提出了中海油改性沥青的针入度等级和PG高温等级之间的关系。二者相关系数达0.99以上,PG等级达到76℃时,25℃针入度应不大于66.5;PG等级达到82℃时,25℃针入度应不大于63.0。利用针入度能够较好地预估PG高温等级,为生产提供指导。
Four kinds of commonly used CNOOC SBS modified asphalt were prepared from CNOOC36-1 asphalt.The penetration at 25℃,ductility,softing point and PG high temperature parameters of the 4 samples were investigated by conventional penetration tests and DSR tests under multi-temperature conditions.Based on the test results,a relationship between penetration grade and performance high temperature grade PG was established.The correlation coefficient of the relational expression is 0.99.When PG level reaches 76 ℃,the 25 ℃ penetration result should not exceed 66.5;When PG level reaches 82℃,the 25℃ penetration should not exceed 63.0.The PG high temperature levels can well be estimated according to the penetration grade.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2017年第9期46-48,共3页
Petroleum Processing and Petrochemicals
