Combined effects of silica fume and slag aggregate on matrices used for solidification of wastes

الملخص EN

This paper presents a laboratory study on the influence of combining Portland cement (PC) with silica fume and ground granulated blast–furnace slag.

This study includes setting times, density, compressive strength, and long-term leaching rates of the radionuclide which used as indicator of immobilization radioactive The leaching is carried out according to the ANSI / ANS-16.1-2003 test”, The study indicates that the mechanical properties of high strength matrices were improved to a great extent at later ages when cement used in matrix was replaced by silica fume and slag by 25 % by weight.

The results were compared with those obtained from the blank cement that does not contain slag and silica fume.