| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vegetation base material used for greening rooftops or the like and having good light weight, water absorbability, water retainability, and strength. <P>SOLUTION: This vegetation base material comprises a porous concrete containing wood chips and crushed autoclaved lightweight concrete as aggregates. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
