In the present project, X-ray Computed Tomography (XCT) will be used to characterize the pore morphology of as-received and neutron irradiated samples of concrete aggregates. This technique will be used to compare the pore content and structure of unirradiated and irradiated concrete aggregates creating 3D models from the XCT data with the Avizo Fire software. Pore content, orientation, connectivity and size will be measured at different irradiation conditions and mineral compositions. This analysis will allow to understand the microstructural changes produced by neutron irradiation and in different types of aggregate minerals. In addition to this, helium pycnometry measurements will help to validate the XCT results.
To further understand the influence of irradiation in concrete aggregates, simulations of the software Microstructural-Oriented Scientific Analysis of Irradiated Concrete (MOSAIC) will be used to measure the mechanical response and stress concentrations of the corresponding sample.