Analysis of Strength Hydraulic Concrete Produced with a Mixture ofCrushed Gneiss and Alluvial Sand

Mambou Ngueyep Luc Leroy^1,2*, Tchapga Gniamsi Guy Molay¹, Ndop Joseph^1,3 and NDJAKA Jean Marie Bienvenu¹

¹Laboratory of Material Sciences, Department of Physics, Faculty of Sciences, University of Yaounde I, P.O. Box 812 Yaoundé, Cameroon

²School of Geology and Mining Engineering, University of Ngaoundere, P.O. Box 115 Meiganga, Cameroon

³Douala Institute of Technology, P.O. Box 1623 Douala, Cameroon