Resilient modulus for unbound granular materials and subgrade soils in Egypt Rabah Mousa, Alaa Gabr, Mohamed G. Arab, Abdelhalim Azam and Sherif El-Badawy MATEC Web Conf., 120 (2017) 06009 Published online: 09 August 2017 DOI: 10.1051/matecconf/201712006009