摘要
采用针入度指数法与胶体不稳定指数法从不同角度评价用溶剂抽提法由废旧沥青混合料回收的 5种沥青再生后的胶体状态 ,同时考察了它们的感温性能与抗老化性能。结果表明 :沈大、沈铁再生后的沥青属于溶胶 凝胶型沥青 ;北环、沈本、沈本全层 3种沥青再生后属于纯粘性的溶胶型沥青。这 5种再生沥青胶体稳定顺序为 :沈铁 >沈大 >北环 >沈本全层 >沈本。
The colloidal states of 5 regenerated asphalts retrieved from the waste asphalt mixtures by solvent extraction were evaluated using penetration index and colloid instable index from various angles, and their antiaging property and temperature sensitivity were also investigated. The result indicated that the regenerated asphalts from Shentie and Shenda were attributed to colloidal-sol/gel type; and the regenerated asphalts from Beihuan, Shenbenquanceng and Shenben were attributed to simple viscous colloidal-sol type. The colloidal stability of the 5 regenerated asphalts was ranked as same as the above appeared sequence.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2004年第2期72-75,共4页
Petroleum Processing and Petrochemicals
基金
辽宁省交通科学研究院资助项目
合同号 :0 2 0 4985
