Use of selected polyvinyl acetate dispersions for solidifying sand surfaces and / or earth.

SE describes the use of triesters of glycerol with aliphatic monocarboxylic acids, triesters citric acid with alcohols monofunctional low molecular weight aliphatic and / or triglycerides epoxidized AT LEAST Polyunsaturated fatty acids olefinically Plasticizers Biodegradable dispersions polyvinylacetate aqueous solutions for use in the solidifying the sand surface and / or ground.