Ubi, S., Nkra, P., Agbor, R., Ewa, D. and Nuchal, M. 2020. EFFICACY OF BASALT AND GRANITE AS COARSE AGGREGATE IN CONCRETE MIXTURE. International Journal of Engineering Technologies and Management Research. 7, 9 (Sep. 2020), 1–9. DOI:https://doi.org/10.29121/ijetmr.v7.i9.2020.769.