Deleterious material treatment body, deleterious material treatment manner and deleterious material treatment material

摘要

PURPOSE: To improve the leakage of free water from cement and to safely treat a harmful material by providing a harmful material layer filled into a vessel and solidified with a cement base material and a layer provided on the former layer and containing a prescribed amount of perlite in cement. ;CONSTITUTION: The harmful material treating body is provided with a steel vessel 1, a solidifying layer 2 as a harmful material layer filled into the vessel 1 and solidified by a cement base material, and a water content solidifying material layer 3 provided on the surface of the solidifying layer 2 and containing 20-50 pts.wt. perlite per 80-50 pts.wt. cement. In this way, in the case the vessel 1 is kept in good order, by the moisture adsorption to the solidifying material layer 3 filled into the upper part, free water content remaining in a clearance part in the cement solidifying body and a clearance part between the cement solidifying body and the vessel 1 is solidified. In the case the vessel 1 is turned sideways, because the free water content comes into contact with the water content solidifying layer 3 in a short time, the water content is solidified by absorption of water to prevent the leakage of the free water content contg. harmful materials.;COPYRIGHT: (C)1995,JPO