The Waste and Disposal expert group conducts research on the behavior of nuclear waste, its surrounding engineered and natural barriers, and their interactions. It is composed of a multi-disciplinary team of engineers and scientists specialized in material sciences, geology, radionuclide chemistry, geochemistry and mass transport phenomena. Recently, the Waste and Disposal group has broadened its scope and also started to conduct research on the immobilization of liquid waste streams. The immobilization process can be done in various ways, cementation being the best known and most applied technique. To investigate this, a new lab with state of the art equipment has been installed. Expertise has been built in the past year in different projects, but the novelty of this research within the Waste and Disposal group makes cementation an exciting research subject.