公路工程

半刚性基层材料的冰冻稳定性直接关系到整个路面的强度、使用质量和使用寿命,特别是在冰冻地区,基层材料的冰冻稳定性差会导致基层强度的明显下降,引起路面的整体破坏。结合几种常用半刚性基层材料的室内冻融循环实验结果,对半刚性基层材料的强度变化做出定量分析,以求为此类材料的使用做有益的指导。

The freezing stability of semi-rigid base materials directly affects the strength, quality, and life of the pavement. In cold regions, freezing may results in significant reduction in strength of base materi?als, causing failure of the pavement. Based on laboratory cyclic freeze-thaw tests on several types of common semi-rigid base materials, this paper quantitatively analyzes the strength changes to provide reference for prop?er applications of these materials to engineering practice.