The symposium A 3 day conference talks and posters, will be held in Avignon, France, from 4 to 6 May 2022, at the Palais des Papes, an historical place in the center of the town. This will be the 4th NUWCEM Conference. Scope and objectives Cementation is a widely applied technique for the conditioning of low - and intermediate - level radioactive wastes.  However, specific issues have still to be addressed, such as the limitation of adverse cement-waste interactions which…