利用70号沥青生产I-A、I-B改性沥青的研究

Study on the Production of I-A and I-B Modified Asphalt By 70#Asphalt

以70号沥青为原料,在一定试验条件下,考察了改性剂、相容剂掺量对改性沥青性能的影响,确定了生产I-A、I-B改性沥青的配方。试验表明:不同掺量的改性剂及相容剂对改性沥青的改性效果不同,通过两种助剂添加配比的调整及优化,可以达到交通部标准I-A、I-B级技术指标的SBS改性沥青配方。

70 grade asphalt is used as raw material,under certain test conditions,effect of the content of modifier and compatibilizer on the performance of modified asphalt is investigated,and the formula of I-A and I-B modified asphalt production is determined.The results show that the modified asphalt with different amount of modifier and compatibilizer has different modification effects.Through the adjustment and optimization of the ratio of two additives,the SBS modified asphalt formula can reach the technical indexes standard of I-A and I-B of Ministry of Communications.