Stabilisation/solidification of 137Cs-contaminated soils using novel high-density grouts: γ-ray shielding properties, contaminant immobilisation and a γRS index-based approach for in situ applicability
We investigate the potentiality of novel high-density grouts for S/S of 137Cs-contaminated soils. We assess contaminant immobilisation and γ-ray shielding effectiveness as γRS index. We propose and apply a novel γRS-based approach for in situ effectiveness assessment. Replacement of OPC by magnetite and iron powder increases γRS index and Cs-immobilisation. Results highlight the possibility to remediate a very wide range of real 137Cs-contaminations.