SBS改性剂与沥青的相容性分析.pdf

材性
2011年第32卷第6期
DOI:10.3963/.cn.42-1783.TU.2011.06.003
SBS改性剂与沥青的相容性分析
张富彬1,李小兰2,施杨3,张登埣4
(1.锡林浩特市养路工区,锡林浩特0260002.洪山区市政工程监督管理站,武汉430070;
3.武汉凌云建筑装饰工程有限公司,武汉430070;4.武汉理工大学硅酸盐建筑材料国家
重点实验室,武汉430070)
摘要:分别采用4303、LG501两种SBS政性剂与辽河90·基质沥青进行相容性试验。沥青胶浆性能结果表明
两种放性剂与基质沥青相容性良好,在掺登一定的情况下,两种SBS改性剂制成的改性沥青的感温性能、高温稳定性
能是4303优于LG501;低温延伸性IG501优子于4303;性恢复、抗老化性两者性能相当。混合料性能试验结果表明,
室内制成的改性沥青与成品政性沥青抨制混合料性能相当,在高温抗车撤方西稍优于取样改性沥青。
关键词:SPS改性剂;基质沥青;相容性
Research of Compatibility Between SBS Modifier and Asphalt
ZHANG Fu-bin, LI Xiao-lan*, SHI Yang, ZHANG Deng feng
(]. Xilinhote City Road Maintenance Work Area, Xilinhote026000, China
2. Hongshan Municipal Works Management Centre, Wuhan 430070, China; 3. Wuhan Lingyun Building
Decoration Engineering td, wuhan 430070, China 4. State Key Laboratory of Silicate Materials for
Architectures, Wuhan University of Technology, Wuhan 430070, China)
Abstract Compatibility est was corducted between Liaohe 90*base asphalt and two kinds of SBS modifiers inclu
ding 430 and 501. The esults of binder test show that excellent compatibility is obtained between base asphalt and
the ES modifiers. At the same concentration, the SBS asphalt modified with 4303 is super or to the one with LG501 on
the thermal sensitivity and high-temperature stability. However, the effect of LG501 is better than 4303 on the im
provement of low-temperature extension properties. There are no significant differences between 4303 and L.G504 on
the improvement of resilient recovery and resistance to ageing. Also the asphalt mixture with modifed SBS asphalt e
hibits better rutting resistance than the one with commercial SBS asphalt at high temperature
Key words: SBS modifier; base asphalt; compatibility
研究表明,改性沥青的路用性能除了与改性剂的掺量有关,还与基质沥青及改性剂的品种有关。改性沥
青的生产过程就是改性剂与基质沥青相互作用的过程。在此过程中,两者之间并没有发生明显的化学反应
只是改性剂在沥青中的分散和吸附过程,两者仅仅是物理意义上的共存共容。该文讨论的沥青改性剂与基
质沥青的相容性特指改性剂以细微颗粒均匀、稳定地分散在沥青中,不发生分层、结团或者互相分离现象的
性质。这种性质与改性剂和沥青质在界面上的相互作用形式、基质沥青的组分、改性剂的极性、颗粒大小、分
子结构等因素有关。一般说来,沥青改性剂的极性越强,溶解度参数或分子结构与沥青越接近,相容性越好,
收稿日期:2011-09-11
作者简介;张富彬(1969-),工程师.Emal: nmxm2fb(@sina. corr
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