Application of Response Surface Methodology in Predicting and optimizing the properties of Concrete containing Ground Scoria and Metakaolin blended Cement in Concrete. JoCEF [Internet]. 2023 Aug. 27 [cited 2026 Jan. 29];4(01):19-26. Available from: https://www.jocivilef.org/index.php/jocef/article/view/69