A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Asphalt pavement structure
The invention provides an asphalt pavement structure. The asphalt pavement structure sequentially comprises a roadbed, a cushion layer, a semi-rigid base layer, a hot asphalt synchronous macadam sealing layer, a first asphalt stabilized macadam crack-resisting and water-removing layer and an asphalt upper surface layer from bottom to top, wherein the porosity of the first asphalt stabilized macadam crack-resisting and water-removing layer is larger than or equal to a first preset threshold value, and the maximum nominal particle size of the first asphalt stabilized macadam crack-resisting and water-removing layer is in a first value range; the thickness of the first asphalt stabilized macadam crack-resisting and water-removing layer is greater than or equal to a second preset threshold value. And the cross slope between the semi-rigid base layer and the hot asphalt synchronous gravel sealing layer is K times of the designed cross slope of the asphalt upper surface layer, wherein K is greater than 1. By means of the mode, the asphalt pavement structure can restrain reflection cracking and prevent water damage, the pavement performance of a semi-rigid base asphalt pavement is substantially improved, and the service life of the semi-rigid base asphalt pavement is substantially prolonged.
本发明提供一种沥青路面结构，其自下而上依次包括：路基、垫层、半刚性基层、热沥青同步碎石封层、第一沥青稳定碎石阻裂除水层和沥青上面层；其中，第一沥青稳定碎石阻裂除水层的空隙率大于或等于第一预设阈值，第一沥青稳定碎石阻裂除水层的最大公称粒径为第一取值范围；第一沥青稳定碎石阻裂除水层的厚度大于或等于第二预设阈值。半刚性基层和热沥青同步碎石封层之间的横坡为沥青上面层设计横坡的K倍，其中K大于1。通过上述方式，本发明的沥青路面结构可以抑阻反射开裂和防止水损害，实质性提高半刚性基层沥青路面的路用性能和使用寿命。
Asphalt pavement structure
The invention provides an asphalt pavement structure. The asphalt pavement structure sequentially comprises a roadbed, a cushion layer, a semi-rigid base layer, a hot asphalt synchronous macadam sealing layer, a first asphalt stabilized macadam crack-resisting and water-removing layer and an asphalt upper surface layer from bottom to top, wherein the porosity of the first asphalt stabilized macadam crack-resisting and water-removing layer is larger than or equal to a first preset threshold value, and the maximum nominal particle size of the first asphalt stabilized macadam crack-resisting and water-removing layer is in a first value range; the thickness of the first asphalt stabilized macadam crack-resisting and water-removing layer is greater than or equal to a second preset threshold value. And the cross slope between the semi-rigid base layer and the hot asphalt synchronous gravel sealing layer is K times of the designed cross slope of the asphalt upper surface layer, wherein K is greater than 1. By means of the mode, the asphalt pavement structure can restrain reflection cracking and prevent water damage, the pavement performance of a semi-rigid base asphalt pavement is substantially improved, and the service life of the semi-rigid base asphalt pavement is substantially prolonged.
本发明提供一种沥青路面结构，其自下而上依次包括：路基、垫层、半刚性基层、热沥青同步碎石封层、第一沥青稳定碎石阻裂除水层和沥青上面层；其中，第一沥青稳定碎石阻裂除水层的空隙率大于或等于第一预设阈值，第一沥青稳定碎石阻裂除水层的最大公称粒径为第一取值范围；第一沥青稳定碎石阻裂除水层的厚度大于或等于第二预设阈值。半刚性基层和热沥青同步碎石封层之间的横坡为沥青上面层设计横坡的K倍，其中K大于1。通过上述方式，本发明的沥青路面结构可以抑阻反射开裂和防止水损害，实质性提高半刚性基层沥青路面的路用性能和使用寿命。
Asphalt pavement structure
沥青路面结构
LI JIANG (author) / YU SHENGJUN (author)
2023-01-03
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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