WATER RETAINING AGENT FOR GREENING, METHOD FOR PRODUCING THE SAME, AND GREENING METHOD USING THE SAME

摘要

PPROBLEM TO BE SOLVED: To obtain a water retaining agent for greening enabling satisfying both high water retaining quantity and high water retainability, to provide a method for producing the water retaining agent and to provide a greening method using the retaining agent. PSOLUTION: The water retaining agent 1 for greening is obtained by coating with bentonite 3 a water retaining agent 2 such as a polymer water retaining agent with low water absorption magnifying power as illustrated in the figure (a). In more details, the water retaining agent 1 is composed of a bentonite suspension 4 and the water retaining agent 2 coated with the bentonite 3 in the bentonite suspension 4 as illustrated in the figure (b). The bentonite suspension is obtained by suspending bentonite in water, and also can be bentonite muddy water produced by a muddy water method such as underground continuous wall making technique. When using the bentonite muddy water as the bentonite suspension, for instance, it is desirable that the water retaining agent is made from a water retaining material having alkaline resistance and humidity-absorbing and releasing properties and containing an alkaline component having calcium ion as the main body. PCOPYRIGHT: (C)2005,JPO&NCIPI