SBS/脱硫胶粉对复合改性沥青性能影响研究  

Experimental Study on the Performance of SBS/Desulfurized Rubber Composite Modified Asphalt

作　　者：宋紫航 曹东伟 夏磊 钟勇 张明明 魏红梅 SONG Zi-hang;CAO Dong wei;XIA Lei;ZHONG Yong;ZHANG Ming-ming;WEI Hong-mei(School of Civil Engineering,Hebei University of Technology,Handan 056038,Hebei,China;School of Materials Science and Engineering,Chang'an University,Xi'an 710064,Shaanxi,China;China-Road Transportation Verification&Inspection Hi-Tech Co.,Ltd.,Beijing 100088,China;Xinjiang Transportation Investment(Group)Limited Liability Company Operation Branch Company,Urumqi 830099,Xinjiang,China)

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038 [2]长安大学材料科学与工程学院,陕西西安710064 [3]中路高科交通检测检验认证有限公司,北京100088 [4]新疆交通投资(集团)有限责任公司运营分公司,新疆乌鲁木齐830099

出　　处：《合成材料老化与应用》2024年第6期50-53,98,共5页Synthetic Materials Aging and Application

基　　金：中央引导地方科技发展资金项目(236Z1218G)。

摘　　要：为弥补全透水路面大孔隙结构特点带来的性能不足,在SBS改性沥青中分别掺入10%、20%、30%(内掺)的脱硫橡胶颗粒制备SBS/脱硫橡胶复合改性沥青,并对其进行三大指标以及抗老化性能试验;然后利用荧光显微镜和傅里叶红外光谱仪对SBS/脱硫橡胶复合改性沥青的微观特性和改性机理进行深入分析。结果表明,复合改性沥青的高温性能、与集料的粘附性能随着脱硫橡胶颗粒掺量的增加而提高,脱硫橡胶颗粒的加入提高了SBS改性沥青的抗老化性能;在SBS/脱硫橡胶复合沥青的改性过程中,脱硫橡胶颗粒与SBS能够均匀地分布在沥青相中,由SBS形成的连续态结构包裹住剪切均匀的橡胶颗粒构成了网状体系,三者主要以物理共混为主,也可能发生了化学反应。To compensate for the performance shortcomings caused by the large pore structure of fully permeable pavement,we prepared SBS/desulfurized rubber composite modifed asphalt by mixing 10%,20%,30%(internally mixed)desulfurized rubber particles into SBS modified asphalt and conducted three basic indicators and anti-aging performance tests.Then,the microscopic properties and modification mechanism of SBS/desulfurized rubber composite modified asphalt were analyzed in depth using fluorescence microscopy and Fourier transform infrared spectroscopy.The results showed that the high temperature performance and adhesion to aggregates of the composite modified asphalt increased with the increase of desulfurized rubber particles.And the addition of desulfurized rubber particles improved the anti-ageing properties of SBS modified asphalt.In the modification process of SBS/desulfurized rubber composite asphalt,desulfurized rubber particles and SBS were evenly distributed in the asphalt phase.Shear homogeneous rubber particles were encapsulated by a continuous state structure formed by SBS to form a mesh system,The three were mainly physically blended,and some chemical reactions could also occur.

关 键 词：道路工程 沥青路面 废旧胶粉 复合改性 透水路面 

分 类 号：U414[交通运输工程—道路与铁道工程]