PREVENTION OF GAS SEEPING INTO BUILDINGS THROUGH CONSTRUCTIVE MATERIALS

The investigation described in this article examined the method of chemical treatment of walls, floor, ceiling, roof, etc. to prevent gas seeping into buildings. A mixture of organic compounds and catalyst are used to fill micropores inside the concrete or another constructive materials against gases, as well as water molecules. The method allows reducing the coefficient of gas (air, Ar, 222Rn, 85Kr, 133,135Xe, etc.) permeability in 200 – 400 times. Consumption of the chemicals is 0.2 L/m2 for gypsum and 0.3–0.4 L/m2 for concrete and cement and depends on porosity of the materials.

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