Effect of heating application on deformations and pore pressures of a bentonite sand mixture subjected to suction distribution
Effect of heating application on deformations and pore pressures of a bentonite sand mixture subjected to suction distribution
Generation of electricity in nuclear power plants have produce much energy to society in the world, and remain arising of radioactive waste as results of performance industry with economical growing. Radioactive waste has to be isolated from the human habitat for absolutely so long time period until its radioactivity has decayed to an innocuous situation. This study represents volume strain and axial strain change properties due to exchange temperature and relative humidity such as thermal hydraulic crucial factors. Suction control is based on vapor pressure technique, and incorporate with heat. This testing program consists of four test programs that one is measurement of pore fluid pressures in bentonite-sand mixture using high temperature resistance pressure sensors. Unsaturated bentonite sand mixture with various of dry densities are prepared at specified water content constant. As results of obtained between pore pressure and temperature in developed steel mold using high quality pressure sensor. Then, another one is of measurement deformation both whole volume and axial strain for unsaturated specimens. The deformations induced by changing relative humidity and heat that measured using a developed steel mold in order to make resistance to high temperature. Previously the relationship between temperature and relative humidity is prepared in order to convert into suction values, and contribute to estimate suction value. In addition, unconfined compression test is conducted out to determine unconfined compressive strength for specimens subjected to thermal effort.
T. Nishimura
9th International Congress on Environmental Geotechnics (ICEG2023)
Advances in Testing and Material Characterization
Geoenvironmental Engineering, Groundwater & Seepage, Soil Mechanics
https://doi.org/10.53243/ICEG2023-25
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom