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RadWaste (completed)

RadWaste - Development of Coupling Details for Concrete Containers for Radwaste and Spent Fuel and Modeling of Their Long-Term Performance

roject ID: TJ04000186
Duration: 2020 – 2022
Partners: Czech technical university in Prague – Faculty of civil engineering, Červenka Consulting s.r.o., STAVBY - KOMÍNY, s.r.o., Centrum výzkumu Řež s.r.o.

The primary goal of the RadWaste project is to develop and assess the coupling details of concrete containers used for radwaste and spent fuel in their long-term performance. Main focus of the project is on the gamma radiation effect on concrete in terms of lifetime of mentioned containers. When gamma radiation interacts with concrete matter, the radiolysis of water content occurs which results in increasing gas pressure in the container structure. Therefore, the soundness and impermeability of the coupling details are crucial for the structural anticipated performance. Also, the radiolysis affects the bond between reinforcing bars and concrete due to accelerated corrosion of metal.

The necessary experiments of gamma radiation exposure have been performed and the results are incorporated within the newly developed software module. However, the software always aims to be versatile tool for capable engineers therefore the effect of the neutron irradiation is included in our module as well. It is based on the available data in literature.

New simulation module containing Cementitious2RadWaste and Radiation bond are part of ATENA version 5.9
The GUI of the new module is currently in beta-version of the new ATENA Preprocessor (PRE) within version 6.0. The beta-version of the software can be requested on email: cervenka@cervenka.cz.

 

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