用差示扫描量热法研究含蜡量对沥青性能的影响

With DSC researching the influence of wax-containing quantity to asphalt performance

通过差示扫描量热法(DSC)试验,研究不同含蜡量对沥青性能的影响。结果表明,蜡的存在将会产生多重峰值,含量越多,能量值越大,从而使沥青的热稳定性变差。第一峰的能量值增加是沥青低温性能变差的主要原因,而第二峰则会使常规指标的测定值发生明显变异。即蜡的含量与组成结构均会对沥青的性能产生重要的影响。

With DSC test, the influence of different wax-containing quantity to Asphalt performance was studied. The result show that wax results in many peak value, and more wax will result in more energy value, so the stability of asphalt becomes bad. The first peak is the main reason of bad low-temperature performance, and the second peak will make obvious variation to usual index. There- fore, the quantity and constitution of wax will both influence the asphalt performance.