砂岩沥青混合料的水稳定性试验研究

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【中图分类号】：U414 【文献标志码】：A 【文章编号】：1008-3197（2025）06-40-05

【DOI编码】:10.3969/j.issn.1008-3197.2025.06.009

Experimental Study on Water Stability of Sandstone Asphalt Mixtures

REN Xiaojun

(TianjinRailwayTechnicalandVocationalCollege，Tianjin3OO24O,China)

【Abstract】:Through the experimentalstudyonthe waterstabilityof sandstone asphalt mixture,the efects ofliquidanti stripping agent，solidanti stripping agent and hydrated lime ontheadhesionand water stabilityof sandstone asphalt mixture were explored.The results show that the adhesion between sandstoneand matrix asphalt is poor,but the addition of modifier can significantly improve the adhesion; Liquid anti stripping agentcan significantlyimprovethe stability,but it decaysrapidlyinthelong-term aging process；Hydrated limecaneffectivelyimprove water stability,but the effect gradually declines with time.

【Key words】:sandstone asphalt mixes；water stability；anti-stripping agents

随着我国高速公路和城市道路建设的快速发展，对道路使用性能的要求日益提高，尤其是在交通量大、气候复杂地区，传统沥青混合料在服役过程中易出现路面水损害、抗滑性能下降等问题，严重影响道路使用寿命和行车安全~2，提升沥青混合料的水稳定性与抗滑性能，已成为道路材料研究领域的重点方向之一。（剩余8130字）