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基于水煮法,采用剥落率对沥青/集料粘附性进行定量评价。通过冻融劈裂试验、浸水马歇尔试验及汉堡车辙试验等,对热拌再生橡胶沥青混合料水稳定性进行了系统的试验研究。结果表明:剥落率R能有效评价沥青/集料粘附性;沥青再生剂能恢复橡胶沥青混合料的水稳定性;和浸水马歇尔试验相比,冻融劈裂试验对SMA-13粗级配的水损害更为严重;在汉堡车辙试验中,高温稳定性和水稳定性呈相反关系。
Based on the boiling method, the peel rate was used to evaluate the asphalt / aggregate adhesion quantitatively. By means of freeze-thaw splitting test, water immersion Marshall test and hamburger rut test, the water stability of hot mix recycled asphalt mixture was systematically studied. The results show that the spalling rate R can effectively evaluate the asphalt / aggregate adhesion; the asphalt regenerant can restore the water stability of rubber asphalt mixture; compared with the flooding Marshall test, Of the water damage more serious; in the rutting test in Hamburg, high temperature stability and water stability in the opposite relationship.