Comparison of Witczak NCHRP 1-40D & Hirsh dynamic modulus models based on different binder characterization methods: a case studyAhmed M. Khattab, Sherif M. El-Badawy, Mahmoud Elmwafi and Al Abbas Al HazmiMATEC Web Conf., 120 (2017) 07003DOI: https://doi.org/10.1051/matecconf/201712007003