Effects of few layers graphene addition, aggregate size, and water acidity on the compressive strength and morphology of cellular lightweight concreteAmun Amri, Revika Wulandari, Novrianda, Desi Heltina and Harnedi MaizirE3S Web Conf., 429 (2023) 05003DOI: https://doi.org/10.1051/e3sconf/202342905003