Characteristics of Ceramic Fiber Modified Asphalt Mortar.
Characteristics of Ceramic Fiber Modified Asphalt Mortar.
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陶瓷纤维改性沥青砂浆的特点
DOI：
10.3390/ma9090788
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发表时间：
2016-09-21
期刊：
影响因子：
--
通讯作者：
Schlangen E
中科院分区：
文献类型：
--
作者：
Wan J;Wu S;Xiao Y;Liu Q;Schlangen E
陶瓷纤维的主要成分为Al 2 O3和SiO2，具有高温稳定性好、比表面积大、耐外界机械振动等优点。通过合理的改性设计，对提高改性沥青的抗车辙能力和温度敏感性具有潜在的贡献。在本研究中，将陶瓷纤维以不同的重量比引入到PEN 60/80和PEN 80/100沥青结合料中。通过沥青针入度试验、软化点试验、延度试验和动态粘弹性能试验对陶瓷纤维改性沥青砂浆进行了表征和预测。研究结果表明，陶瓷纤维对沥青具有很大的增强作用，使沥青具有更大的刚度，在相同的应力作用下，沥青只能承受较小的应变。陶瓷纤维的隔热效果将提高温度稳定性。复模量和相位角测试结果表明，陶瓷纤维能显著提高软质粘结剂的耐高温性能。
Ceramic fiber, with a major composition of Al2O3 and SiO2, has advantages of stability at relatively high temperature, big specific surface area and resistance to external mechanical vibration. It has the potential contribution of improving the rutting resistance and temperature sensitivity of modified asphalt binder by proper modification design. In this research, ceramic fiber was introduced into both pen 60/80 and pen 80/100 asphalt binder by different weight ratios. An asphalt penetration test, softening point test, ductility test and dynamic viscoelastic behavior were conducted to characterize and predict the ceramic fiber modified asphalt mortar (CFAM). Research results indicated that the ceramic fiber has a great effect on reinforcement of asphalt, which makes the asphalt stiffer so that the asphalt can only undertake less strain under the same stress. The heat insulation effect of the ceramic fiber will improve the temperature stability. Complex modulus and phase angle results indicate that the ceramic fiber can significantly enhance the high temperature resistance of soft binder.