FIELD: construction.
SUBSTANCE: invention relates to the methods for prevention of soil and groundwater pollution, in particular to the creation of concrete blankets on the landfills and storage of industrial, household and mainly liquid wastes. Subgrade 1 is prepared and protective layer 2 is arranged in it. Protective layer 2 is previously placed between two layers of geotextile 3 and 4. Mixture of sodium and calcium bentonitic clay 5 is used as the protective layer 2 in ratio of 75% Na-bentonite and 25% Ca-bentonite. Layer of mineral soil 6 with surface treated with fixing agent 7 is laid on top of the protective layer 2. Polymer liquid emulsion from wastes of polyisobutylene is used as a fixing agent at t=34-40°C.
EFFECT: high operational reliability, durability, as well as stability of coating on the slopes and in case of subsidences of the base are provided.
2 cl, 1 dwg
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