Ecofriendly bricks elaborated from coal waste of Moroccan Jerrada Mining H. Ez-zaki, A. Diouri, A. Bouregba, F. Amor, S. Chhaiba, O. Sassi and Y. El Rhaffari MATEC Web Conf., 149 (2018) 01043 Published online: 14 February 2018 DOI: 10.1051/matecconf/201814901043