Moon Ki Hoon, Falchetto Augusto Cannone, Wang Di, Riccardi Chiara, Wistuba Michael P
Pavement research division, Korea Expressway Corporation (KEC), Hwa Sung city, Gyung Gi do 18489, Korea.
Department of Civil Engineering, Braunschweig Pavement Engineering Centre-ISBS, Technical University of Braunschweig, Braunschweig 38106, Germany.
Materials (Basel). 2017 Jul 3;10(7):743. doi: 10.3390/ma10070743.
In this paper, the possibility of improving the global response of asphalt materials for pavement applications through the use of hydrated lime and Electric Arc-Furnace Steel Slag (EAFSS) was investigated. For this purpose, a set of asphalt mortars was prepared by mixing two different asphalt binders with fine granite aggregate together with hydrated lime or EAFSS at three different percentages. Bending Beam Rheometer (BBR) creep tests and Dynamic Shear Rheometer (DSR) complex modulus tests were performed to evaluate the material response both at low and high temperature. Then, the rheological Huet model was fitted to the BBR creep results for estimating the impact of filler content on the model parameters. It was found that an addition of hydrated lime and EAFSS up to 10% and 5%, respectively, results in satisfactory low-temperature performance with a substantial improvement of the high-temperature behavior.
本文研究了通过使用熟石灰和电弧炉钢渣（EAFSS）来改善用于路面的沥青材料整体性能的可能性。为此，制备了一组沥青胶浆，将两种不同的沥青结合料与细花岗岩集料以及三种不同比例的熟石灰或EAFSS混合。进行了弯曲梁流变仪（BBR）蠕变试验和动态剪切流变仪（DSR）复数模量试验，以评估材料在低温和高温下的性能响应。然后，将流变学的休特模型拟合到BBR蠕变结果上，以估计填料含量对模型参数的影响。结果发现，分别添加高达10%的熟石灰和5%的EAFSS可产生令人满意的低温性能，同时高温性能有显著改善。
