【摘要】：為增強玄武巖纖維(BF)在瀝青中的加筋及增強效果,采用1.0 mol/L及2.5 mol/L的Na OH溶液對BF進行表面處理,通過環(huán)境掃描電鏡和紅外光光譜試驗對其表面細觀形貌進行了細觀觀測,原樣BF表面光滑,Na OH處理后的BF呈現(xiàn)明顯的皮芯結構,且隨著Na OH的濃度及處理時間的增加,BF的羥基含量越高;通過軟化點、5℃延度、車轍因子及環(huán)境掃描電鏡試驗等,研究了玄武巖纖維瀝青的高、低溫性能及拉拔斷口形貌,隨著BF的侵蝕程度越大,玄武巖纖維瀝青性能越好,且得到了Na OH對BF侵蝕的最佳處理時間和濃度分別為45 min、2.5 mol/L。
[Abstract]:In order to enhance the reinforcement and enhancement effect of basalt fiber (BF) in asphalt, the surface of BF was treated with 1.0 mol/L and 2.5 mol/L Na OH solution. The micromorphology of BF surface was observed by environmental scanning electron microscope (SEM) and infrared spectroscopy (IR). The smooth, Na OH treated BF of the original BF showed obvious core structure, and with the increase of the concentration of Na OH and the treatment time, the structure of BF was obvious. The higher the hydroxyl content of BF; By means of softening point, ductility at 5 鈩，

本文編號：2408878