EBOSELE SO, Omofuma BO, Airiofolo IR. EFFECT OF CLAY CONTAMINATION ON THE COMPRESSIVE STRENGTH OF CONCRETE. Int. J. Renew. Energ & Environ [Internet]. 2026 Oct. 30 [cited 2026 Oct. 31];4(3):40-5. Available from: https://ijree.com/index.php/publications/article/view/101