“CELLULAR GRAVEL PRODUCED FROM RESIDUAL ALUMINO-SILICATE MATERIALS (FLY ASH, METAKAOLIN, SLAG, AND ALKALINE EARTH ALUMINO-SILICATE GLASS) BY NONCONVENTIONAL TECHNIQUES” (2023) Nonconventional Technologies Review, 27(2). Available at: http://revtn.ro/index.php/revtn/article/view/417 (Accessed: 27 April 2026).