【摘要】：以改質(zhì)瀝青為粘結(jié)劑、電煅無煙煤和瀝青焦為骨料,研究骨料粒度、加熱溫度、保溫時間及振動次數(shù)對改質(zhì)瀝青浸潤性的影響,并對不同粒度分布的電煅無煙煤和瀝青焦的比表面積進行測定。結(jié)果表明,隨著骨料粒度的減小,骨料顆粒的比表面積逐漸增大;改質(zhì)瀝青對電煅無煙煤和瀝青焦的浸潤性均隨骨料粒度的減小和振動次數(shù)的增加而大幅度降低,隨加熱溫度和保溫時間的增加而逐漸增大。通過適當調(diào)整骨料粒度分布、加熱溫度、保溫時間、振動次數(shù)等工藝參數(shù),能夠改善改質(zhì)瀝青對電煅無煙煤和瀝青焦的浸潤效果。
[Abstract]:Using modified asphalt as binder and electric calcined anthracite and bituminous coke as aggregate, the effects of aggregate size, heating temperature, holding time and vibration times on the wettability of modified bitumen were studied. The specific surface area of electric calcined anthracite and bituminous coke with different particle size distribution was measured. The results show that the specific surface area of aggregate particle increases with the decrease of aggregate particle size, and the wettability of modified asphalt to electrically calcined anthracite and bituminous coke decreases greatly with the decrease of aggregate particle size and the increase of vibration times. With the increase of heating temperature and holding time, it increases gradually. The wetting effect of modified bitumen on electric calcined anthracite and bituminous coke can be improved by adjusting the particle size distribution of aggregate, heating temperature, holding time, vibration times and other technological parameters.
【作者單位】： 貴州師范大學材料與建筑工程學院;貴州省鋁電解炭素材料工程技術(shù)研究中心;貴州省教育廳無機非金屬功能材料重點實驗室;
【基金】：貴州省科學技術(shù)基金(黔科合J字[2013]2221號) 貴州省教育廳專業(yè)綜合改革試點項目(黔教高發(fā)[2013]446) 貴陽市白云區(qū)科技計劃項目(白科合同[2013]40號)
【分類號】：TF821;TQ127.11

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