沥青混合料裂缝潜在自愈合机制研究

Study on Possible Self healing Mechanisms of Asphalt Mixes

针对道路工程中沥青混合料开裂这一常见病害,对沥青混合料裂缝自愈合的各种可能性展开研究,介绍了沥青混凝土裂缝自愈合的五种潜在可利用机制,包括沥青自身的自愈合机制、微胶囊机制、离聚物机制、纳米粒子机制以及其它机制,并对上述各机制进行比较并讨论各机制的优点及不足之处。在综合比较下沥青材料自身的自愈合机制是最优的选择。

Asphalt mixture cracks are the common disease of the road engineering. This paper stuctled on the possibilities of self - healing of the asphalt mixture cracks in road engineering, introduced the potential self - healing mechanisms of asphalt concrete cracks which including the mechanisms of asphalt itself, microcap- sules mechanisms, ionomer mechanisms, nanoparticles mechanisms and others. Moreover, the advantages and disadvantages of the mechanisms were discussed. Finally concluded that, under a comprehensive comparison, the self - healing mechanisms of asphalt itself were the best choice.