A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ASPHALT PAVEMENT STRUCTURE AND ASPHALT PAVEMENT STRUCTURE MANUFACTURING METHOD
To provide an asphalt pavement structure that can be manufactured by a simple method, includes a thin layer, and has water permeability and low noise properties similar to those of a conventional two-layer porous pavement.SOLUTION: An asphalt pavement structure comprises a roadbed, a base layer, and a surface layer. The roadbed and base layer are the same as general pavement. The surface layer has a thin porous structure and is 20 to 30 mm thick. The surface layer consists of a small particle-sized aggregate, having a maximum particle size of 5 mm or less, and asphalt. The design porosity is approximately 18%. Further, using the simple groove forming method, grooves are extended in the longitudinal direction of the pavement on the surface layer, and a plurality of grooves are arranged side by side. The width of the grooves is 5 to 15 mm. The depth of the grooves is 5 to 15 mm. The spacing between the grooves is 30 to 60 mm. The porous porosity is less than 10% between the grooves and 14 to 22% below the grooves. Based on the results of verification testing, the water permeability and low noise properties are equivalent to that of a conventional two-layer porous pavement.SELECTED DRAWING: Figure 1
【課題】簡易な方法で製造でき、薄層で、従来型２層式ポーラス舗装に準ずる透水性および低騒音性を有するアスファルト舗装構造を提供する。【解決手段】アスファルト舗装構造は、路盤と基層と表層とからなる。路盤と基層については一般的な舗装と同様である。表層は薄層ポーラス構造であり、２０〜３０ｍｍ厚である。最大粒径５ｍｍ以下の小粒径骨材とアスファルトとからなる。設計空隙率は１８％程度である。さらに、簡易溝形成方法により、表層には溝が舗装長手方向に延設され、複数並設される。溝の幅は５〜１５ｍｍ、溝の深さは５〜１５ｍｍ、溝の間隔は３０〜６０ｍｍである。溝間におけるポーラス空隙率は１０％未満であり、溝より下部では１４〜２２％である。検証試験の結果、従来型２層式ポーラス舗装に準ずる透水性および低騒音性を有する。【選択図】図１
ASPHALT PAVEMENT STRUCTURE AND ASPHALT PAVEMENT STRUCTURE MANUFACTURING METHOD
To provide an asphalt pavement structure that can be manufactured by a simple method, includes a thin layer, and has water permeability and low noise properties similar to those of a conventional two-layer porous pavement.SOLUTION: An asphalt pavement structure comprises a roadbed, a base layer, and a surface layer. The roadbed and base layer are the same as general pavement. The surface layer has a thin porous structure and is 20 to 30 mm thick. The surface layer consists of a small particle-sized aggregate, having a maximum particle size of 5 mm or less, and asphalt. The design porosity is approximately 18%. Further, using the simple groove forming method, grooves are extended in the longitudinal direction of the pavement on the surface layer, and a plurality of grooves are arranged side by side. The width of the grooves is 5 to 15 mm. The depth of the grooves is 5 to 15 mm. The spacing between the grooves is 30 to 60 mm. The porous porosity is less than 10% between the grooves and 14 to 22% below the grooves. Based on the results of verification testing, the water permeability and low noise properties are equivalent to that of a conventional two-layer porous pavement.SELECTED DRAWING: Figure 1
【課題】簡易な方法で製造でき、薄層で、従来型２層式ポーラス舗装に準ずる透水性および低騒音性を有するアスファルト舗装構造を提供する。【解決手段】アスファルト舗装構造は、路盤と基層と表層とからなる。路盤と基層については一般的な舗装と同様である。表層は薄層ポーラス構造であり、２０〜３０ｍｍ厚である。最大粒径５ｍｍ以下の小粒径骨材とアスファルトとからなる。設計空隙率は１８％程度である。さらに、簡易溝形成方法により、表層には溝が舗装長手方向に延設され、複数並設される。溝の幅は５〜１５ｍｍ、溝の深さは５〜１５ｍｍ、溝の間隔は３０〜６０ｍｍである。溝間におけるポーラス空隙率は１０％未満であり、溝より下部では１４〜２２％である。検証試験の結果、従来型２層式ポーラス舗装に準ずる透水性および低騒音性を有する。【選択図】図１
ASPHALT PAVEMENT STRUCTURE AND ASPHALT PAVEMENT STRUCTURE MANUFACTURING METHOD
アスファルト舗装構造およびアスファルト舗装構造の製造方法
SAITO KAZUYUKI (author) / YAMAMOTO HIROSHI (author) / SAZAWA MASAKI (author) / OBA SHINJI (author) / SUZUKI EIJI (author)
2021-05-27
Patent
Electronic Resource
Japanese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
ASPHALT PAVEMENT, ASPHALT PAVEMENT ROAD SURFACE STRUCTURE, AND ASPHALT PAVEMENT FORMING METHOD
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