NGUYEN, Van-Dung; TRINH, Thi Hien; LE, Sy Chinh; NGUYEN, Dang Nguyen. The Utilization of Coal Bottom Ash as a Natural Sand Replacement in Mortar Containing Fly Ash. Periodica Polytechnica Civil Engineering, [S. l.], 2025. 10.3311/PPci.38725. Disponível em: https://pp.bme.hu/ci/article/view/38725. Acesso em: 22 jul. 2025.