Spalling of concrete due to fire exposure: A coupled fracture mechanics and pore pressure approachB.B.G. Lottman, E.A.B. Koenders, C.B.M. Blom and J.C. WalravenMATEC Web of Conferences, 6 (2013) 05002DOI: https://doi.org/10.1051/matecconf/20130605002