Microstructural evolution and physico-chemical behavior of compacted clayey soil submitted to an alkaline plume

作     者：D.Deneele O.Cuisinier V.Hallaire F.Masrouri 

作者机构：Laboratoire Central des Ponts et Chaussées Nancy Université UMR INRA/Agrocampus 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2010年第2卷第2期

页      面：169-177页

学科分类：082704[工学-辐射防护及环境保护] 08[工学] 0818[工学-地质资源与地质工程] 0827[工学-核科学与技术] 

主　　题：argillite lime treatment petrographical examination scanning electron microscopy(SEM) image analysis microstructure 

摘      要：In the French concept of deep nuclear waste repositories,the galleries should be backfilled with excavated argillite after the site has been *** additives like lime could be used to improve the mechanical characteristics of the *** thousands of years,the degradation of the concrete lining of the galleries will generate an alkaline solution（pH value 12） that will diffuse through the *** study presents the effect of a saturated Ca（OH）_2 solution circulation through lime-treated sample at 60 ℃ for 3,6 and 12 months,*** effect of such circulation on the lime-treated Manois argillite（MA） was assessed by petrographical examination coupled to image analysis and scanning electron microscopy（SEM） equipped with energy dispersive X-ray（EDX） analyser of soil *** objective of this study is to make the link among the mineralogical transformations,the textural and mechanical changes produced in the compacted clayey soil as a consequence of the alkaline solution circulation.