The effect of steam curing on chloride penetration in geopolymer concreteJanuarti Jaya Ekaputri, Inne Syabrina Mutiara, Siti Nurminarsih, Nguyen Van Chanh, Koichi Maekawa and Davin H. E. SetiamargaMATEC Web Conf., 138 (2017) 01019DOI: https://doi.org/10.1051/matecconf/201713801019