TITLE:
Characterization and Valorization of Tailings from BIENKOK (EDEA-Cameroon) Quarry for Reinforcement of the Mechanic Behavior of Roads Base Layers
AUTHORS:
Joseph Bikoun Mousi, Monique Makamyou, Rolande Aurelie Tchouateu Kamwa, Michelle Ndiang, Claudia Pamella Manou Oyong, Emmanuel Yamb, Jacques Etame
KEYWORDS:
Tailing Material, Road Construction, Bearing Capacity, Waste Reduction, Quarries Exploitation
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.13 No.3,
August
18,
2025
ABSTRACT: This work concerns the ecological management of tailings which is BIENKOK mining waste that affects the surrounding vegetation. The quarry, located in the coastal region of Cameroon and more precisely in the Dibamba district at BIENKOK coordinates 3˚57'40'' north and 10˚08'37'' east, used to produce approximately 18,000 tons of tailings each year. This article aims to reuse these residues in road construction projects. An initial geological and mineralogical study indicates that the rock is an orthogneiss rich in amphiboles and pyroxene classified as R6. Geotechnical studies were also been conducted to characterize the material. The results of the mechanical parameters of the rock, namely the Los Angeles coefficient (27%) and the Micro Deval coefficient (11.2%), enter defined spindles by referenced standards. The bearing capacity using the CBR method, gives an index of 104.5. The state parameters indicate a permeable material (10−4 ≤ k ≤ 10−5 m/s) and very slightly compressible (Cc = 0.162