Substitution of Aggregates in Concrete and Mortar with Coltan Mining Waste: Mechanical, Environmental, and Economic Impact Case Study

1. ¹ Laboratory Engineering Civil and Mechanics, Doctoral Research Unit for Engineering and Applications, University of Yaoundé I, Yaoundé, Cameroon
2. ² Laboratory Engineering Civil and Mechanics, Doctoral Research Unit for Engineering and Applications, University of Yaoundé I, Yaoundé, Cameroon
3. ³ Department of Civil Engineering, Faculty of Applied Sciences and Technologies, Free University of Great Lakes Countries (ULPGL), Goma, DRC
4. ⁴ Laboratory Engineering Civil and Mechanics, Doctoral Research Unit for Engineering and Applications, University of Yaoundé I, Yaoundé, Cameroon
5. ⁵ Department of Civil Engineering, National Advanced School of Engineering of Yaoundé, University of Yaoundé I, Yaoundé, Cameroon
6. ⁶ Department of Civil Engineering, Fotso Victor University Institute of Technology, University of Dschang, Bandjoun, Cameroon
7. ⁷ FIMAS Laboratory, Faculty of Technologies, Tahri Mohamed University, Bechar, Algeria
8. ⁸ Laboratory Engineering Civil and Mechanics, Doctoral Research Unit for Engineering and Applications, University of Yaoundé I, Yaoundé, Cameroon