TY - JOUR TI - Strength and abrasion performance of recycled aggregate based geopolymer concrete AU - LAKEW, A.M. AU - AL-MASHHADANI, M.M. AU - CANPOLAT, O. JO - Sigma Journal of Engineering and Natural Sciences PY - 2022 VL - 40 SP - 155 EP - 161 DO - 10.14744/sigma.2021.00021 ER -