| 摘要 |
PROBLEM TO BE SOLVED: To provide fillers, which are filled up into the void of permeable concrete, permeable asphalt or a permeable-resin cured body and has water retentivity, and a water-retentive pavement capable of inhibiting the remarkable rise of a surface temperature by direct sunlight in summer. SOLUTION: The fillers comprise the powder and granule of pearlite and/or obsidian. It is preferable that the fillers contain water from the viewpoint of an improvement in filling works, and it is preferable that cement is comprised from the viewpoint of the prevention of the washout or the like of the fillers. The water-retentive pavement is constructed by filling the insides of the voids of permeable concrete, permeable asphalt or the permeable-resin cured body with either of the fillers. COPYRIGHT: (C)2004,JPO
|
