Swelling behavior of unsaturated claystone/ bentonite mixtures Marvin Middelhoff, Olivier Cuisinier, Farimah Masrouri, Jean Talandier and Nathalie Conil E3S Web Conf., 195 (2020) 04011 Published online: 16 October 2020 DOI: 10.1051/e3sconf/202019504011