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

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• 作者：Pietro P. Falciglia^a ; ^b ; ^{ppfalci@dica.unict.it} ; Stefano Romano^b ; ^c ; Federico G.A. Vagliasindi^a
• 关键词：137-cesium (137Cs) ; γRS index ; Effective dose ; Environmental risk ; High-density γ-ray shielding materials (iron powder ; magnetite) ; Stabilisation/solidification
• 刊名：Chemosphere
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：168
• 期：Complete
• 页码：1257-1266
• 全文大小：1810 K
• 卷排序：168

文摘

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.