A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Double-layer drainage asphalt concrete pavement structure
The invention provides a double-layer drainage asphalt concrete pavement structure. The pavement structure sequentially comprises an upper surface layer fine-grained water-permeable asphalt concrete layer, a middle surface layer coarse-grained water-permeable asphalt concrete layer, a lower surface layer dense-graded asphalt concrete layer, a base layer and a soil base layer from top to bottom, the upper surface layer fine-grained water-permeable asphalt concrete layer comprises PAC13 water-permeable asphalt concrete or PAC10 water-permeable asphalt concrete; and the middle surface layer coarse-grained water-permeable asphalt concrete layer comprises PAC20 permeable asphalt concrete or PAC16 permeable asphalt concrete. SBS rubber powder compound modified asphalt is adopted as a cementing material on the upper surface layer and the middle surface layer, and an asphalt concrete double-layer drainage structure with a thin upper part and a thick lower part is adopted, so that the pavementdeformation performance is improved, the driving comfort is improved, the frost heaving resistance and durability of the pavement are improved, the pavement noise can be reduced, and environmental friendliness is achieved; the blockage of pores of the pervious asphalt concrete is delayed, and the durability of the pavement is improved.
本发明提供一种双层排水沥青混凝土路面结构，所述路面结构从上至下依次包括：上面层细粒式透水沥青混凝土层、中面层粗粒式透水沥青混凝土层、下面层密级配沥青混凝土层、基层和土基层；所述上面层细粒式透水沥青混凝土层包括PAC13透水沥青混凝土或PAC10透水沥青混凝土；所述中面层粗粒式透水沥青混凝土层包括PAC20透水沥青混凝土或PAC16透水沥青混凝土。本发明在上、中面层采用SBS胶粉复配改性沥青作为胶结料，以及上细下粗的沥青混凝土双层排水结构，使路面变形性能提升，行车舒适性提升，路面抗冻胀能力以及耐久性提高，也能使得路面噪声减少，具有环境友好性，延缓了透水沥青混凝土孔隙的堵塞，提高了路面耐久性。
Double-layer drainage asphalt concrete pavement structure
The invention provides a double-layer drainage asphalt concrete pavement structure. The pavement structure sequentially comprises an upper surface layer fine-grained water-permeable asphalt concrete layer, a middle surface layer coarse-grained water-permeable asphalt concrete layer, a lower surface layer dense-graded asphalt concrete layer, a base layer and a soil base layer from top to bottom, the upper surface layer fine-grained water-permeable asphalt concrete layer comprises PAC13 water-permeable asphalt concrete or PAC10 water-permeable asphalt concrete; and the middle surface layer coarse-grained water-permeable asphalt concrete layer comprises PAC20 permeable asphalt concrete or PAC16 permeable asphalt concrete. SBS rubber powder compound modified asphalt is adopted as a cementing material on the upper surface layer and the middle surface layer, and an asphalt concrete double-layer drainage structure with a thin upper part and a thick lower part is adopted, so that the pavementdeformation performance is improved, the driving comfort is improved, the frost heaving resistance and durability of the pavement are improved, the pavement noise can be reduced, and environmental friendliness is achieved; the blockage of pores of the pervious asphalt concrete is delayed, and the durability of the pavement is improved.
本发明提供一种双层排水沥青混凝土路面结构，所述路面结构从上至下依次包括：上面层细粒式透水沥青混凝土层、中面层粗粒式透水沥青混凝土层、下面层密级配沥青混凝土层、基层和土基层；所述上面层细粒式透水沥青混凝土层包括PAC13透水沥青混凝土或PAC10透水沥青混凝土；所述中面层粗粒式透水沥青混凝土层包括PAC20透水沥青混凝土或PAC16透水沥青混凝土。本发明在上、中面层采用SBS胶粉复配改性沥青作为胶结料，以及上细下粗的沥青混凝土双层排水结构，使路面变形性能提升，行车舒适性提升，路面抗冻胀能力以及耐久性提高，也能使得路面噪声减少，具有环境友好性，延缓了透水沥青混凝土孔隙的堵塞，提高了路面耐久性。
Double-layer drainage asphalt concrete pavement structure
双层排水沥青混凝土路面结构
ZHOU JIANG (author) / ZHA XIANWEI (author) / XIAO FEIPENG (author) / XIN YING (author) / WANG JINGANG (author) / ZONG QIDI (author) / GUO RUI (author)
2020-05-12
Patent
Electronic Resource
Chinese
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