Selecting five kind of mixture paving thickness,applying wheel grinding instrument forming test piece,it studies the impacts of maximum partial size and pavement structure＇s thickness of warm mix asphalt on pavement structure rational thickness.Results show that： there is a rational value between maximum particle size and pavement structure paving thickness,which makes various properties of warm mix asphalt best.%选取5种不同的混合料摊铺厚度,采用轮碾仪成型试件,研究温拌沥青混合料最大粒径对路面结构层合理厚度的影响,结果表明：最大粒径与路面结构层摊铺厚度存在一个合理的比值,使得温拌沥青混合料各项性能达到最优。
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