Radiological Consequences of the Use of Fly Ash in Building Materials in Greece

Abstract

Some lignites used in Greece for commercial electricity generation contain above average levels of uranium and its decay products and these higher concentrations are reflected in the residual ash. Pulverised fly ash from power stations employing such lignites is used as a constituent in ordinary Portland cement. This paper presents the results of measurements made on samples of the fly ash, cement products and other building materials used in Greece. An assessment of the radiological consequences for the public from the use of cement containing fly ash in the construction of private dwellings is also presented. The results are examined in the light of standards for indoor exposure adopted in other countries.