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从半刚性基层沥青混凝土路面和级配碎石柔性基层路面的优缺点入手,在级配碎石中添加少量的水泥黏结料,考察了不同级配类型的水泥稳定碎石混合料性能,分别采用压实性能、强度和塑性变形、渗透性能进行了评价。研究表明,采用间断级配,掺加少量水泥(1%),不但能提高纯级配碎石的模量、施工和易性、减小塑性变形,同时还使基层具有良好的排水性能,从而减少路面的反射裂缝。
Starting from the advantages and disadvantages of semi-rigid base asphalt concrete pavement and graded gravel flexible base pavement, a small amount of cementitious cement was added into the graded macadam to investigate the properties of cement stabilized macadam mixtures of different grading types. Compaction performance, strength and plastic deformation, permeability were evaluated. The results show that adding a small amount of cement (1%) by discontinuous mixing can not only improve the modulus, construction workability and plastic deformation of pure graded broken stone, but also make the grassroots have good drainage performance Reduce the reflective cracks on the road.