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

Japanese Patent JP7381826

B2

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

Kazuyuki Saito
Kei Yamamoto
Masaki Sazawa
Shinji Ohba
Eiji Suzuki

JP2019208172A

November 16, 2023

November 18, 2019

Click for automatic bibliography generation  

Guy Art Co., Ltd.

E01C11/24; E01C7/18; E01C19/43; E01C19/48; E01C23/02

JP2001011811A
JP2001262502A
JP2018193756A
JP2015190203A
JP2005273322A

WO2016031271A1
US20070122235
US20040240937
US20150284920

Maejima Daigo
Katsumi Udaka
Junichi Hatakeyama
Kenji Usaba

Previous Patent: battery charger

Next Patent: Optical interference measurement device and optical interference measurement method