The radiological consequences of using fly ash as a component of cement are discussed. Measurements of the activity concentrations of the fly ash and cement are reported together with measurements of emanation coefficients and exhalation rates. The radon-exhalation rate was found to be significantly lower in concrete containing fly ash than in ordinary concrete. Dose calculations suggest that fly ash will contribute to a reduction in effective dose equivalent due to the reduced radon-exhalation rate.
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Erling Stranden (1983) studied this question.
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