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结合南方湿热地区的气候条件和对沥青混合料配合比的设计要求,对我国现行规范中沥青混合料配合比设计方法在南方湿热地区的适应性进行了分析。研究结果表明,普通沥青混合料配合比设计结果与采用旧规范设计方法的设计结果基本一致;改性沥青混合料配合比设计的最佳沥青用量则增加0.3%,其抗高温变形能力、泛油以及抗水损害能力等长期路用性能尚需结合工程实践进一步观测。
Based on the climatic conditions in the hot and humid areas of the South China and the design requirements for the mix proportion of asphalt mixture, the adaptability of the mixture mix design method in our country to the current wet and hot areas in the south is analyzed. The results show that the design results of common asphalt mixes are basically the same as the ones of the old design methods. The optimal asphalt content of modified asphalt mixture increases 0.3%, and its resistance to high temperature deformation, As well as water damage resistance and long-term road performance needs to be further observed with engineering practice.