Improving the behavior of concrete exposed to fire by using an air entraining agent (AEA): Assessment of spallingL. D'Aloia, F. Robert, P. Rougeau, B. Moreau, N. Flahault and C. CollignonMATEC Web of Conferences, 6 (2013) 02007DOI: https://doi.org/10.1051/matecconf/20130602007