改性沥青混合料在热带气候区域沥青路面中的应用

The Application of Modified Asphalt Mixture in Asphalt Pavement in Tropical Climate Area

文章对沥青混合料进行改性试验,研究了热带气候区域造成沥青路面车辙病害及水损害等病害的主要因素。研究表明,掺入抗剥落剂及木质素纤维的沥青工程性能优良,将其掺入沥青,明显提高了沥青混合料的热稳定性和高温稳定性,即便在沥青经短期老化条件下依然表现良好,显著提高了热带气候区域的路面施工质量及耐久性,可为今后热带气候区域的其他含沥青路面项目提供借鉴。

In this paper,the modification test of asphalt mixture is carried out,and the main factors causing rut disease and water damage of asphalt pavement in tropical climate area are studied.The research shows that the engineering performance of asphalt mixed with anti-stripping agent and lignin fiber is excellent.The thermal stability and high temperature stability of asphalt mixture are obviously improved.Even under the short-term aging condition,the asphalt still performs well,which significantly improves the pavement construction quality and durability in tropical climate area.It can provide reference for other asphalt pavement projects in tropical climate area in the future.