Communication Gypsum-free cements as binders of suspensions for injections

摘要

The affinity of chosen organic pollutants present inpolluted natural gravels and soils to gypsum-free cement and itshydrates was tested. The organic hydrophobic pollutants areemulsified and bound to the rapidly created solid structure of thebinder because of the favourable action of the combined additive.It seems that the suspensions based on gypsum-free cements withsuitable additives, because of their very good fluidity and affinityto pollutants tested, can be used for elimination of pollutantsmigration in strata of permeable gravels.