硅橡胶对沥青流变性能及老化特性的影响

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【中图分类号】：U414 【文献标志码】：A 【文章编号】：1008-3197（2025）06-33-07

【DOI编码】：10.3969/j.issn.1008-3197.2025.06.008

Effects of Silicone Rubber on Rheological Properties and Aging Characteristics of Asphalt Binder

CAOLijun1，GAO Zichen²*

（1.TianjinTaanExrsa，ana.spaioeachsiute）

【Abstract】：Silicone rubber modified asphalt was prepared by using silicone rubber（SR）and 90 #.The short-term and long-term aging tests of silicone rubber modified asphalt were simulated by rotating film oven test and pressure aging test.The rheological properties of silicone rubber modified asphalt beforeand after aging were tested by Brinell rotary viscosity testanddynamicshear rheological test.Theresults show thatsilicone rubbercan significantlyimprove theaging resistance，fatigue lifeand high temperature stabilityofasphalt，butexcessive addition （ 14% and 16% ）will have a negative impact on the performance of srma.The optimum content of silicone rubber is 12% ，14% ：

【Keywords】：silicone rubber;asphalt rheological properties;aging characteristics

硅橡胶作为绝缘子的主要材料，在工业上应用广泛；考虑到其难降解性，如何妥善处理废弃硅橡胶成为亟待解决的问题[～2]。（剩余8272字）