Hosseini Mehrab, A. and Esfahani, M.R. 2022. Experimental Study on Size Effect and Fracture Properties of Polypropylene Fiber Reinforced Lightweight Aggregate Concrete. Periodica Polytechnica Civil Engineering. 66, 4 (Jan. 2022), 1278–1293. https://doi.org/10.3311/PPci.20345.