Rouhallah Jafari, Reza Mastouri, Shahin Dabirian 2025. Effect of The Polypropylene Fiber Size and Alkaline Solution to Binder Ratio in GGBS-FA based Fiber Reinforced Geopolymer Concrete; Mechanical Properties and Fire Resistance. The International Journal of Multiphysics. 19, 1 (Mar. 2025), 255 - 270. DOI:https://doi.org/10.52783/ijm.v19.1716.