A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ultrahigh-ductility concrete stress absorption layer asphalt pavement
The invention relates to an ultrahigh-ductility concrete stress absorption layer asphalt pavement. The asphalt pavement comprises a cushion layer, a subbase layer, a base layer, a stress absorption layer and a surface layer which are sequentially laid from bottom to top. The cushion layer is made of granules which are not easy to frost heave; the subbase layer is lime-fly ash stabilized macadam; the base layer is cement stabilized macadam; the stress absorption layer is made of ultra-high ductility concrete; and the surface layer is made of densely-mixed asphalt concrete. Compared with the prior art, by utilizing high toughness and high energy consumption capacity of the ultrahigh-ductility concrete, the ultrahigh-ductility concrete is arranged between the base layer and the surface layerof the asphalt pavement as a stress absorption layer, so that generation and development of reflection cracks can be effectively controlled, the fatigue resistance of the pavement is improved, water damage is reduced, the mechanical property of the pavement is improved, the service life of the pavement is prolonged, and the maintenance frequency of the pavement is reduced.
本发明涉及一种超高延性混凝土应力吸收层沥青路面，包括从下至上依次铺设的垫层、底基层、基层、应力吸收层及面层；所述垫层为不易冻胀粒料；所述底基层为石灰‑粉煤灰稳定碎石；所述基层为水泥稳定碎石；所述应力吸收层为超高延性混凝土；所述面层为密集配沥青混凝土。与现有技术相比，本发明利用超高延性混凝土的高韧性和高耗能能力，使其作为应力吸收层设置在沥青路面的基层与面层之间，可有效控制反射裂缝的产生与发展，改善路面抗疲劳性能，减少水损害，提高路面的的力学性能和使用寿命，减少其维修频率。
Ultrahigh-ductility concrete stress absorption layer asphalt pavement
The invention relates to an ultrahigh-ductility concrete stress absorption layer asphalt pavement. The asphalt pavement comprises a cushion layer, a subbase layer, a base layer, a stress absorption layer and a surface layer which are sequentially laid from bottom to top. The cushion layer is made of granules which are not easy to frost heave; the subbase layer is lime-fly ash stabilized macadam; the base layer is cement stabilized macadam; the stress absorption layer is made of ultra-high ductility concrete; and the surface layer is made of densely-mixed asphalt concrete. Compared with the prior art, by utilizing high toughness and high energy consumption capacity of the ultrahigh-ductility concrete, the ultrahigh-ductility concrete is arranged between the base layer and the surface layerof the asphalt pavement as a stress absorption layer, so that generation and development of reflection cracks can be effectively controlled, the fatigue resistance of the pavement is improved, water damage is reduced, the mechanical property of the pavement is improved, the service life of the pavement is prolonged, and the maintenance frequency of the pavement is reduced.
本发明涉及一种超高延性混凝土应力吸收层沥青路面，包括从下至上依次铺设的垫层、底基层、基层、应力吸收层及面层；所述垫层为不易冻胀粒料；所述底基层为石灰‑粉煤灰稳定碎石；所述基层为水泥稳定碎石；所述应力吸收层为超高延性混凝土；所述面层为密集配沥青混凝土。与现有技术相比，本发明利用超高延性混凝土的高韧性和高耗能能力，使其作为应力吸收层设置在沥青路面的基层与面层之间，可有效控制反射裂缝的产生与发展，改善路面抗疲劳性能，减少水损害，提高路面的的力学性能和使用寿命，减少其维修频率。
Ultrahigh-ductility concrete stress absorption layer asphalt pavement
一种超高延性混凝土应力吸收层沥青路面
YU JIANGTAO (author)
2020-10-30
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
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CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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