F. Lu and M. Fontana, Effects of Polypropylene Fibers on Preventing Concrete Spalling in Fire, Proceedings of the 9 th International Conference on Structure in Fire SiF' 16, 2016.

C. Maluk, L. Bisby, and G. P. Terrasi, Effects of polypropylene fibre type and dose on the propensity for heat-induced concrete spalling, Engineering Structures, vol.41, pp.584-595, 2017.

I. Knack, New pp-fibre with exceptional melting characteristics for improved fire protection in concrete building, Proceedings of the 1 st International Workshop on Concrete Spalling due to Fire Exposure, pp.238-247, 2009.

Y. Heo, J. G. Sanjayan, C. Han, and M. Han, Limited effect of diameter of fibres on spalling protection of concrete in fire, Materials and Structures, vol.45, pp.325-335, 2012.

M. J. Miah, H. Carré, P. Pimienta, N. Pinoteau, L. Borderie et al., Effect of uniaxial mechanical loading on fire spalling of concrete, Proceedings of the 4 th International Workshop on Concrete Spalling due to Fire Exposure, pp.124-131, 2015.

M. Choinska, Effets de la température, du chargement mécanique et de leurs interactions sur la perméabilité du béton de structure, 2014.

L. J. Klinkenberg, The permeability of porous media to liquid and gases, 1941.

J. Bo?njak, J. O?bolt, and R. Hahn, Permeability measurement on high strength concrete without and with polypropylene fibers at elevated temperatures using a new test setup, vol.53, pp.104-111, 2013.

D. Zhang, A. Dasari, and K. H. Tan, On the mechanism of prevention of explosive spalling in ultra-high performance concrete with polymer fibers, vol.113, pp.169-177, 2018.

Z. P. Bazant and M. F. Kaplan, Concrete at High Temperatures: Material Properties and Mathematical Models, 1996.

G. A. Khoury and B. Willoughby, Polypropylene fibres in heated concrete. Part I: Molecular structure and materials behaviour, vol.60, pp.125-136, 2008.

C. Maier and T. Calafut, Polypropylene: The Definitive User's Guide and Databook, 1998.

D. Tripathi, Practical Guide to Polypropylene, 2002.

A. Kanapitsas, C. Tsonos, C. Pandis, P. Pissis, E. Kontou et al., PTC Effect and Structure of Polymer Composites Based on Polypropylene/Co-Polyamide Blend Filled with Dispersed Iron, Proceedings of the 25 th International Conference on microelectronics, pp.14-17, 2006.

S. Fichant, C. La-borderie, and G. Pjaudier-cabot, Isotropic and anisotropic description of damage in concrete structures, Mechanics of Cohesive-frictional Materials, 4, pp.339-359, 1999.

M. Matallah, C. La-borderie, and O. Maurel, A practical method to estimate crack openings in concrete structures, International Journal for Numerical and Analytical Methods in Geomechanics, vol.34, pp.1615-1633, 2010.