| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water retentive pavement which can maintain high water retentivity over a long period of time, has a practically sufficient compressive strength, and is excellent in initial water permeability, and a method of manufacturing the water retentive pavement. <P>SOLUTION: A water retentive pavement 10 is provided with a porous water retentive layer 16 which contains an aggregate 20 having an American Foundry Society grain fineness number of 5 or more and 180 or less, and a surfactant. An organic binder 18 is suitably a polybutadiene-based organic binder, and the surfactant may be added after the formation of the porous water retentive layer 16. <P>COPYRIGHT: (C)2013,JPO&INPIT |
