【摘要】：從操作可行性角度,在現(xiàn)有瀝青表面能試驗方法中篩選出Wilhelmy吊片法和躺滴法進行研究,通過室內(nèi)試驗對比分析了以上2種試驗方法的原理、過程、條件以及數(shù)據(jù),并基于試驗結(jié)果評價了Wilhelmy吊片法的試驗條件對表面能參數(shù)測試結(jié)果的影響.結(jié)果表明:采用Wilhelmy吊片法和躺滴法進行瀝青表面能測試均可行有效,其中Wilhelmy吊片法在試驗樣品準備、試驗溫度控制、試驗時對液滴量的控制以及試驗數(shù)據(jù)的有效性和穩(wěn)定性上更優(yōu);瀝青的表面能主要由范德華力提供,表面能參數(shù)中酸堿力作用較小;表面能測試過程和試驗條件會顯著影響表面能參數(shù)的測試結(jié)果,建議Wilhelmy吊片法的試件保溫處理條件為120℃且保溫2h,測試時間控制在20~60s,室溫養(yǎng)生時間不超過3d.
[Abstract]:From the point of view of operational feasibility, Wilhelmy hanging plate method and lying drop method are screened out from existing asphalt surface energy test methods. The principle, process, conditions and data of the above two test methods are compared and analyzed through laboratory tests. Based on the experimental results, the influence of the test conditions of the Wilhelmy method on the surface energy parameters was evaluated. The results show that the surface energy of asphalt can be measured effectively by Wilhelmy hanging plate method and lying drop method, in which the Wilhelmy hanging plate method is used to prepare the test sample and the test temperature is controlled. The surface energy of asphalt is mainly supplied by van der Waals force, and the effect of acid and base force on the surface energy parameter is small. The process and conditions of surface energy test will significantly affect the test results of surface energy parameters. It is suggested that the heat preservation conditions of Wilhelmy hanging plate method are 120 鈩，

本文編號：2277478