废胶粉/SBS复合改性沥青技术研究  

Research on the Technology of Waste Tire Powder/SBS Composite Modified Asphalt

作　　者：周治理 ZHOU Zhili(China Railway 22nd Bureau Group First Engineering Co.,Ltd.,Harbin 150008,China)

机构地区：[1]中铁二十二局集团第一工程有限公司,黑龙江哈尔滨150008

出　　处：《佳木斯大学学报(自然科学版)》2024年第12期124-127,共4页Journal of Jiamusi University:Natural Science Edition

基　　金：黑龙江省交通运输厅科技项目(HJK2023B014-3)。

摘　　要：为了研究废胶粉/SBS复合改性沥青最佳改性条件,以70#基质沥青为原材料,利用常规指标与流变指标相结合,确定废胶粉的细度、掺量和SBS的掺量的最佳显效区间。结果表明:从改性效果与成本控制多方面考虑,当胶粉细度为60目、掺量为20%、SBS掺量为3%时,复合改性沥青的改性效果最佳。为废胶粉/SBS复合改性沥青在实际工程应用提供了有益的参考和指导。In order to study the best modification conditions of waste rubber powder/SBS composite modified asphalt,70#matrix asphalt as raw materials,the use of conventional indicators and rheological indicators to determine the fineness of waste rubber powder,dosage and SBS dosage of the optimal efficiency interval.The results show that from the modification effect and cost control considerations,when the fineness of the rubber powder is 60 mesh,the dosage of 20%,SBS dosage of 3%,the modified asphalt composite modification effect is optimal.This study for the waste rubber powder/SBS composite modified asphalt in the practical application of engineering provides a useful reference and guidance.

关 键 词：废胶粉 SBS 沥青 流变指标 

分 类 号：U414[交通运输工程—道路与铁道工程]