Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
AbstractThe enhancement of radon emanation rate from surfaces of concrete blocks with pulverized fuel ash (PFA) as a partial substitution material for ordinary portland cement (OPC) has been studied. The radon emanation rates from surfaces of concrete blocks made from OPC and those with 15% cement substitution by PFA are compared. Standardized activated charcoal canisters are employed to collect the radon emanated and are then measured using γ-spectroscopy. It is found that the radon emanation rates from concrete blocks with PFA are relatively higher but not significantly. Therefore, for the batch of PFA currently investigated, it is safe to use it as a partial cement substitution material in concrete in the sense that such substitution does not cause a significant increase in the radon risk.
AbstractThe enhancement of radon emanation rate from surfaces of concrete blocks with pulverized fuel ash (PFA) as a partial substitution material for ordinary portland cement (OPC) has been studied. The radon emanation rates from surfaces of concrete blocks made from OPC and those with 15% cement substitution by PFA are compared. Standardized activated charcoal canisters are employed to collect the radon emanated and are then measured using γ-spectroscopy. It is found that the radon emanation rates from concrete blocks with PFA are relatively higher but not significantly. Therefore, for the batch of PFA currently investigated, it is safe to use it as a partial cement substitution material in concrete in the sense that such substitution does not cause a significant increase in the radon risk.
Radon emanation from concrete with pulverized fuel ash (PFA)
Yu, K.N. (Autor:in)
Building and Environment ; 29 ; 545-547
01.01.1994
3 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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