Based on long term investigations of the microstructure various geomaterials as different sensitive low plastic clays from Eastern Canada, unsaturated compacted silt Paris area, highly compressible deep marine clay gulf Guinea, MX80 bentonite and Callovo–Oxfordian claystone, considered possible barriers in geological radioactive waste disposal, two fundamentals distinct nano micro mechanisms go...

The swelling behaviour of expansive clays is strongly related to the interaction between clay particles. In this paper, a series constant-volume pressure and mercury intrusion porosimetry (MIP) tests were carried out on MX80 bentonite/Callovo-Oxfordian (COx) claystone mixtures with different bentonite fractions dry densities. Results show that increased linearly increase in density. Additionall...

One of the most prospective oil and gas producing basins in Indonesia is Kutai Basin which located East Borneo. In there a natural resource potential form quite abundant. This due to richness source rock aspect dominated by coal. Besides coal, also claystone with rich organic matter (organic shale) that has an important role as rock. Therefore, final project research was conducted Basin, Kalima...

The Callovo-Oxfordian (COx) claystone has been considered as a possible host rock for deep geological repository of high-level radioactive waste in France. When constructing the repository, it is unavoidable to generate fractured zone vicinity excavated walls. In assessment performance, important investigate role fractures on swelling capacity COx and further characterize evolution. this study,...

Complex coupled thermo-hydromechanical (THM) loading paths are expected to occur in clay rocks which serve as host formations for geological radioactive waste repositories. Exothermic packages heat the rock, causing thermal strains and temperature induced pore pressure build-up. The drifts designed such a way limit these effects. One has anticipate failure fracturing of material, should pressur...