Influence of Ceramic Roof Tile Waste Powder as a Partial Cementitious Material on the Initial and Final Setting Times of Cement PasteAyu Tiara Maharani, Agus Maryoto and Nor Intang Setyo HermantoE3S Web Conf., 609 (2025) 03002DOI: https://doi.org/10.1051/e3sconf/202560903002