| 简介 |
PROBLEM TO BE SOLVED : To provide a natural-collapse type block, which realizes effective use of a sediment of earth and sand in a dam lake or the like, supply of earth and sand to rivers and seashores, and recovery of ecosystems in rivers and sea areas, and which solves the problems conventional concrete blocks have, the problem of the disposal of a sediment of earth and sand in a dam lake or the like, and the problem of the outflow of earth and sand from rivers and seashores.
SOLUTION : The natural-collapse type block consists of a solidified material, which is mixed and solidified with a binder and a collapse-accelerating substance for accelerating the collapse after the solidification. |
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