硫酸钙晶须在沥青中的热力学行为研究  

Research of Thermodynamic Behavior of Calcium Sulfate Whisker in Asphalt

作　　者：李军代 

机构地区：[1]上海浦东路桥建设股份有限公司,上海201210

出　　处：《材料导报（纳米与新材料专辑）》2014年第2期402-406,共5页

基　　金：浦东新区科技发展基金创新资金(PKJ2012-C05)

摘　　要：采用120-180℃老化试验，研究沥青、二水和β型半水硫酸钙晶须以及二者改性的沥青在不同时间的累积质量损失，发现硫酸钙晶须与沥青在高温环境中相互牵制，抑制了彼此的衰减，为硫酸钙晶须应用于沥青路面提供了热力学行为基础。Employing the method of aging test from 120℃ to 180℃, asphalt, calcium sulfate whisker including two water molecules, the accumulative mass losses of Q-calcium sulfate whisker including half water molecule and asphalt modified by calcium sulfate whisker or Q-calcium sulfate whisker with the time development were researched. It could be found that calcium sulfate whisker and asphalt interlink with each other, so the decay phenomena of them are supressed. The findings offer foundations of thermodynamic behavior for application of the calcium sulfate whisker in asphalt pavement.

关 键 词：沥青 二水硫酸钙晶须 β型硫酸钙晶须 质量损失 热力学行为 

分 类 号：TB321[一般工业技术—材料科学与工程] U414[交通运输工程—道路与铁道工程]