Characterization of hydrophobic-treated recycled paper mill sludge in bituminous materialsTracy Leh Xin Wong, Mohd Rosli Mohd Hasan, Choe Peng Leo and Mohd Fahmi Haikal Mohd GhazaliE3S Web Conf., 347 (2022) 01016DOI: https://doi.org/10.1051/e3sconf/202234701016