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Analysis of the Characteristics of Materials Obtained by Recycling Scrap Metal in Guinea



Author(s)

Alpha Issa Diallo¹, Jean Ahmed Kourouma², Adama Moussa Sakho³ and Alexandre Lucien Richard²

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DOI:10.17265/2161-6213/2024.1-3.001

1. Mechanical Laboratory, Higher Institute of Technology of Mamou, Mamou 063, Republic of Guinea
2. Materials Laboratory of Gamal Abdel Nasser University, Conakry, Mamou, 1147, Republic of Guinea
3. Department of Laboratory Technology, Higher Institute of Technology of Mamou, Mamou 063, Republic of Guinea

The aim of this study was to determine the quality of rebar produced from recycled scrap metal collected throughout the country, and imported rebar sold in the Republic of Guinea. To do this, the samples were subjected to various mechanical tests involving traction, bending and microscopic analysis. In the Lambanyi and Casse Sonfonia samples, all the tensile strength values for diameters 12, 14 and 16 were above 550 MPa. Conversely, the iron samples from Baillobaye and the 10 mm diameters of the samples from Casse Sonfonio and Lambanyi have less appreciable values. The limits of elasticity were determined. The various values found vary more or less from the conventional yield strength of the NF A35-016 reference supplied by CBITEC, which is 500 MPa. Microscopic analysis gives us an insight into the internal structure of the iron samples used. This study may provide the company and the vendors with an alternative for their improvements.

Steel in construction, recycled scrap, strength test, traction, bending.