Jan Novák, Petra Svobodová
The Czech deep geological repository (DGR) concept aims to safely dispose of highly-radioactive waste in a crystalline rock environment, akin to modeled practices in Finland and Sweden. This study investigates the potential negative impact of high pH structural concrete on the properties of bentonite, a key engineered barrier meant to contain radionuclide migration. The main objective was to develop a concrete mix with reduced pH (≤ 11.2) to ensure compatibility with bentonite and maintain its sealing function over time. Experimental methods were employed to assess the chemical interactions between the concrete and bentonite materials. Results indicated that the new concrete formulation exhibited pH levels conducive to preserving the swelling capacity of bentonite, thus alleviating concerns related to radionuclide migration. Such findings reinforce the importance of material selection in the design of deep geological repositories, contributing to the long-term safety and stability of radioactive waste disposal solutions. Further research will expand upon these findings to optimize the material properties for practical applications in repository conditions.
@article{b1dec452-9201-4d1b-b089-cb741620291f,
title={Reinforced Concrete with Reduced pH for Deep Geological Repository Applications},
author={Jan Novák and Petra Svobodová},
year={2020},
language={en}
}TY - JOUR TI - Reinforced Concrete with Reduced pH for Deep Geological Repository Applications AU - Jan Novák AU - Petra Svobodová PY - 2020 LA - en ER -
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