摘要
试验选择4种常用的雾封层材料(TL2000、金熊油、沥再生、科宁)。将4种材料通过一定的方法掺加到SBS老化沥青中,测试其对老化沥青黏度的改善作用。对4种材料的再生性能进行了对比,并通过在同样黏度的条件下,得出4种雾封层的不同掺量。最后将不同掺量的雾封层材料对老化沥青进行改性,测试并对比了经过改性后的老化沥青的针入度、软化点和延度三大基本指标,给出了合适的雾封层用量。
There are four materials of fog seal in the laboratory test,TL2000,Reclamite,Asphalt Recycle and Kening.Adding the four materials into the SBS ageing asphalt by certain method,their respective improvement to the viscosity can be tested.A comparative test of their regeneration performance is finished under the same condition of the viscosity,their different admixtures can be obtained.Finally,the ageing asphalt is modified by different fog seal material with different admixture,with three basic indexs being tested and compared including needle penetration,softening point and ductility,and the suitable fog seal amount can be provided.
出处
《中国市政工程》
2010年第1期73-74,共2页
China Municipal Engineering
关键词
雾封层
老化沥青
黏度
掺量
fog seal
ageing asphalt
viscosity
admixture
