Abidin MZ, Sutrisno W, Sutrisno RD. Investigation of the effect of sandblasting waste treatment method as nano-silica on the compressive strength of concrete mortar . JCE [nternet]. 2025Jul.23 [cited 2025Dec.6];38(2):71. vailable from: https://journal.its.ac.id/index.php/jce/article/view/7472