半刚性基层沥青路面养护维修处治研究

Research on Maintenance and Treatment of Semi-rigid Base Asphalt Pavement

为评价沥青路面养护处理的有效性,该研究分析了现场热回收(HIR)、磨铣和重铺(M&F)、薄HMA覆盖(THO)和微铺(MS)四种处理方式,收集2个公路区段车辙深度(RD)数据,以车辙深度数据为基础,通过性能跳变(PJ)、变质率降低(DRR)和平均变质率(ADRR)3个指标定量比较4个处理的效果。结果表明,HIR是最有效的处理方法,其次是M&F和THO,而MS是效果最差的治理方法,使用寿命只有三、四年。

In order to evaluate the effectiveness of asphalt pavement maintenance treatment,this paper analyzes four treatment methods,including on-site heat recovery(HIR),milling and resurface(M&F),thin HMA overlay(THO)and micro-paving(MS),and collects rut depth(RD)data for two highway sections.Based on RD data,the effects of the four treatments were quantitatively compared by performance jump(PJ),deterioration rate reduction(DRR)and average deterioration rate(ADRR).The results showed that HIR was the most effective treatment,followed by M&F and THO,while MS was the least effective treatment,with a lifespan of only three to four years.