Mansur MS, Suprobo P, Tajunnisa Y, Apsari AK. An Experiment of Shear Strength Reinforced Geopolymer Concrete Beam Based High-Calcium Fly Ash with Varian Shear Span-to-Depth Ratio . JCE [nternet]. 2025Jul.23 [cited 2025Dec.6];38(3):139. vailable from: https://journal.its.ac.id/index.php/jce/article/view/7452