Cement compositions with high durability

摘要

High durability cement composition, comprising a cement material and a not thermally treated clayey material, which can also consist in a sediment of contaminated sludges; further, the composition can optionally contain a plasticizing or superplasticizing admixture and/or alkali metal silicates and divalent and trivalent soluble salts, and can be used for the solidification/stabilization of toxic wastes or anyhow sludgy wastes.