基于分子模拟技术的沥青自愈合性能研究

Research on asphalt self-healing property based on molecular modeling technique

以分子模拟作为研究手段,对采用化学结构指标H/C和CH2/CH3值作为沥青自愈合性能评价指标的可行性进行了分析,研究结论表明,采用两种不同建模方法构建的沥青分子模型的CH2/CH3和H/C值都与沥青的自愈合性能表现出较好的线性关系,且与试验结论的趋势相同,因此认为可以用CH2/CH3和H/C值作为沥青自愈合性能的评价指标。

Taking the molecular modeling technique as the research measure,the paper analyzes the feasibility of adopting the chemical structural indexes,H/C and CH2/CH3 as the evaluation indexes for the asphalt self-healing properties,proves by the research conclusion that the asphalt molecular models,CH2/CH3 and H/C,with the two different modeling methods,as well as the asphalt self-healing properties have better linear relationship,and they have the same tendency with the test conclusion,so it is considered that CH2/CH3 and H/C can be adopted as the evaluation indexes for the asphalt self-healing performance.