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基于油蚀度的概念,提出了沥青油蚀度试验方法。根据该方法,定性、定量探讨了高温、常温下基质沥青、改性沥青的油蚀度变化规律以阐释沥青油蚀机理,并进行了油蚀条件下沥青混合料的马歇尔稳定度试验、浸水马歇尔稳定度试验、肯塔堡飞散试验及车辙试验。结果表明:根据油蚀度试验方法所得到的沥青油蚀度试验结果能较好地区分不同沥青的抗油蚀能力,油蚀度越大,抗油蚀能力越差;沥青油蚀机理在于油品与沥青成分上的相似相溶造成沥青粘结料粘结力下降;高温多雨地区,在评价油品对沥青混合料高温稳定性、水稳定性的影响时,车辙试验、肯塔堡飞散试验适应性较强,建议优先选择。文中提出的油蚀度方法和优选的油蚀评价方法能够为油品泄露事故的应急检测、快速诊断提供参考和依据。
Based on the concept of oil corrosion, a test method of asphalt oil corrosion is proposed. According to the method, the law of the erosivity of matrix asphalt and modified asphalt at high temperature and normal temperature was qualitatively and quantitatively studied to explain the mechanism of asphalt erosion. The Marshall stability test of asphalt mixture under oil erosion condition was carried out, Stability test, Kentucky flying test and rutting test. The results show that the asphalt oil corrosion test results obtained according to the method of oil corrosion test can better distinguish the corrosion resistance of different asphalt. The larger the oil corrosion degree is, the worse the anti-corrosion ability is. The mechanism of asphalt oil erosion is oil In the high temperature and rainy area, when evaluating the influence of oil on the high temperature stability and water stability of asphalt mixture, the rutting test, the Kentucky scattering test Strong adaptability, it is recommended to choose first. The proposed method of oil eclipse and the preferred method of evaluating oil erosion can provide reference and basis for emergency detection and rapid diagnosis of oil leakage accidents.