PhD Positions in Sustainable Materials, Circular Concrete, and Nuclear Waste Management Belgian Nuclear Research Centre in Belgium

Two fully funded PhD positions are available at the Belgian Nuclear Research Centre (SCK CEN) in collaboration with Universiteit Gent, focusing on sustainable materials and nuclear safety. The research aims to advance Belgium's nuclear waste management strategies through innovative work on circular concrete and the performance of concrete linings in geological disposal facilities for radioactive waste.

The first PhD project investigates the behavior of concrete structures used as linings in deep geological repositories (DGR) for radioactive waste. The research will enhance theoretical and numerical models to understand the evolution of concrete under unique environmental conditions, such as overburden pressure and humidity gradients. The project involves developing new models for creep and shrinkage in blended cementitious concrete, validating them with experimental and long-term monitoring data, and applying them to assess the mechanical stability of repository galleries. Candidates should have a background in mechanical engineering, computational mechanics, civil engineering (with a focus on mechanics), or computational geomechanics.

The second PhD project focuses on innovative circular concrete for nuclear applications, addressing the challenge of selecting durable, sustainable materials for long-term nuclear waste disposal. The research will use a design of experiments approach to study the mechanical and durability properties of circular concrete formulations with high levels of ordinary Portland cement replacement. The project will assess carbonation, chloride ingress resistance, and shrinkage, and evaluate the applicability of current structural design codes to these next-generation materials. Candidates should have a background in civil engineering with a focus on cementitious materials or structural engineering.

Both projects are part of Belgium's efforts to ensure safe, sustainable nuclear waste management and offer opportunities to work with leading experts in concrete materials science, structural engineering, and nuclear technology. The estimated duration is 4 years, and the positions are fully funded. Applicants must hold a relevant Master of Science degree, have achieved at least distinction in their final year, and apply within 5 years of graduation. The application process requires contacting the SCK CEN mentor, submitting an online application, and providing reference letters as specified in the guidelines. For more information and to apply, visit the SCK CEN website and consult the detailed application instructions.