【摘要】 为研究冻融循环对武汉地区沥青路面的影响程度,分别对经历过0、10、20、40次冻融循环的沥青混合料试件进行了冻融循环试验研究,主要测定试件的动弹性模量和质量损失等技术指标。同时对经历过上述不同次冻融循环次数的试件进行全厚度车辙试验,得出动稳定度DS和车辙深度RD随冻融循环次数的变化规律,并对上述结果进行了分析。研究结果表明,冻融循环对沥青路面车辙的影响不容忽视。更多还原

【Abstract】 To study the impact of freeze-thaw cycling on the asphalt pavement in the area of Wuhan, asphalt mixture specimens through 0, 10, 20 and 40 freeze-thaw cycles are tested respectively, mainly to measure the technical indices such as the dynamic elastic modulus and loss in mass, etc. Meanwhile, full depth rut test is conducted on the said specimens to obtain the rule of variation of dynamic stability (DS) and rut depth (RD) with the number of freeze-thaw cycling. It is shown in the study that the impact of freeze-thaw cycling to the rut in the asphalt pavement shall not be overlooked.更多还原