EXPERIMENTS ON INDUSTRIAL BY-PRODUCT UTILIZATION AS A CONCRETE ADMIXTURE TO REDUCE RADON GAS TRANSPORT PROPERTIES

This paper assesses the utilization of industrial by-products as a concrete admixture to reduce the radiolosical transport properties of radon gas through concrete. Laboratory experiments were conducted to measure the diffusion coefficient (D). the air permeability (K) and the porosit\ (â‚ of concrete samples that contained various amounts of industrial by-products. These industrial by-products included: Type-C fly ash. bottom ash. slag, silica fume as well as crumb rubber. A fractional factorial experimental design was used to statistically identify an optimal concrete mixture with regards to controlling radon gas transport. Within this design method a comparison with a conventional concrete mix is presented. Details of the innovative experimental setups and procedures are discussed. The results of this study can be applied to improve the current radon-resistant reside11 t id construction technology. It also provides an environmentally safe and economicall\ fehible rec>clina avenue for the discarding of rapidl? accumulating industrial b\-products.