Modeling of the Adsorption Behavior of Cs and Sr on Calcium Silicate Hydrates

For safe disposal of the large volume concrete waste generated during decommissioning Fukushima Daiichi Nuclear Power Station (F1NPS), state Cs and Sr contamination in must ideally be estimated advance planning. are primarily adsorbed by calcium silicate hydrate (C–S–H) cementitious materials. However, amount adsorption varies greatly with Ca/Si mole ratio (C/S ratio) C–S–H presence or absence coexisting elements, both which vary according to interactions environment. This study attempted model on results experiments synthetic varying C/S ratios. Furthermore, for verifying whether can applied F1NPS, calculated were compared experimental cement paste subjected environmental conditions (carbonation, leaching, elements (Na, K)). It was confirmed that present is overall able reproduce behavior paste, considering changes due conditions.