The Impact of Neutron Irradiation on Concrete Structures

Concrete is the most common and the predominant material used in the construction of nuclear plants, radioactive waste repositories and their shielding materials. Many of these structures are large and irreplaceable sections; therefore, studying and enhancing the durability of the concrete design over time is essential. The microstructure and properties of dry cement paste and/or aggregates of different types change over time due to slow hydration, crystallization of amorphous constituents, and reactions between cement paste and aggregates, as well as influences from the local environment such as humidity, temperature, radiation exposure, and/or chemical interactions. This paper is reflecting the current state of knowledge about the components of concrete and the behaviour under such circumstances over time.