Mixtures of crushed excavated COx claystone and bentonite are considered as a potential backfill solution for the French disposal concept radioactive waste. In present work, hydro-mechanical behaviour claystone/sodium mixtures was experimentally investigated various contents (≤40% in total mass) densities. Demineralized, site water cementitious alkaline were used. Test on physicochemical proper...

Abstract Movement of soil and rock masses down the slope or known as landslide is a natural activity that can pose danger to humans. Generally, be influenced by slope, materials (rock/soil), rainfall. Morphologically, study area, which located in borders Tembalang Banyumanik Districts, Semarang City, hill quite steep. It has potential experience landslides. Landslide occurences at area do not a...

Excavation of the galleries for geological disposal radioactive waste can induce an excavation damaged zone (EDZ), which have consequences on long-term safety repository. In this study, intact Callovo-Oxfordian (COx) claystone taken from Meuse/Haute-Marne Underground Research Laboratory in France was artificially fractured different directions, and hydro-mechanical behaviour investigated by per...

A compacted mixture of Callovo-Oxfordian (COx) claystone/MX80 bentonite is a promising sealing material in the French Cigéo project for radioactive waste disposal at great depth. Over time, will be saturated by site water originating from surrounding rock and chemistry can affect performance material. In this study, effects technological gaps on hydro-mechanical property were investigated perfo...

Abstract The evaluation of shear stress versus displacement curves is in the main focus geotechnical engineering. Such curves, depending on rock assessed, consist a quasi-linear section, followed by “kick” representing peak strength, and residual part, mostly parallel to abscissa. aim present study facilitate future automatic detection these crucial characteristics take step towards replacing t...

Some (saturated) claystones, considered as host rocks for deep radioactive waste disposal, are sensitive to drying and wetting. Wetting may result in swelling damage during the resaturation of specimens mechanical testing. Given that, due evaporation, have lost some pore water coring, transport, storage trimming prior lab testing, it is required re-saturate them by reinjecting evaporated conten...

This study provides adsorption and diffusion data of selenite on Boda Claystone Formation (BCF) which is a potential host rock deep geological disposal high-level radioactive waste. The experiments were performed two diverse core samples: one albitic claystone sample characteristic for the entire BCF pyrite containing sparsely occurring in BCF. carried out under atmospheric conditions. Batch to...