PETROGRAPHIC, MINERALOGICAL AND GEOMECHANICAL CHARACTERIZATION OF SANDSTONES EXPLOITED IN QUARRIES IN KINSHASA

Innocent Mufungizi (), Jonathan Musitu Muliwavyo, Raissa Nzita, Albert Mbata Muliwavyo, Lumière Musitu, Jean Kabulo, Trésor Hubert, Jimy Musitu Berka, Ivon Ndala Tshiwisa, Clement N'zau Umba-Di-Mbudi and Junior Lutete Savu
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Innocent Mufungizi: Geographic Institute of Congo, Kinshasa, DR Congo.
Jonathan Musitu Muliwavyo: Mention Earth Sciences, Faculty of Sciences and Technologies, University of Kinshasa, BP 190 Kinshasa XI, DR Congo
Raissa Nzita: Mention Earth Sciences, Faculty of Sciences and Technologies, University of Kinshasa, BP 190 Kinshasa XI, DR Congo
Albert Mbata Muliwavyo: Mention Physics, Faculty of Sciences and Technologies, University of Kinshasa, Kinshasa, BP 190 Kinshasa XI, DR Congo
Lumière Musitu: Mention Physics, Faculty of Sciences and Technologies, University of Kinshasa, Kinshasa, BP 190 Kinshasa XI, DR Congo
Jean Kabulo: LeGeolog Research Team, Kinshasa, Democratic Republic of the Congo
Trésor Hubert: LeGeolog Research Team, Kinshasa, Democratic Republic of the Congo
Jimy Musitu Berka: Geographic Institute of Congo, Kinshasa, DR Congo.
Ivon Ndala Tshiwisa: Geo-Hydro-Energy Research Group, Faculty of Sciences and Technologies, University of Kinshasa, Kinshasa, Democratic Republic of the Congo
Clement N'zau Umba-Di-Mbudi: Geo-Hydro-Energy Research Group, Faculty of Sciences and Technologies, University of Kinshasa, Kinshasa, Democratic Republic of the Congo
Junior Lutete Savu: Geo-Hydro-Energy Research Group, Faculty of Sciences and Technologies, University of Kinshasa, Kinshasa, Democratic Republic of the Congo

Geological Behavior (GBR), 2024, vol. 8, issue 2, 146-154

Abstract: The sandstone of Inkisi, serving as support for infrastructure and construction materials in the city province of Kinshasa, is of interest for geomechanical studies in particular and geological studies in general. Given its outcrop almost everywhere in Kinshasa and its high consumption in the field of buildings and public works, we have set ourselves the main goal of its macroscopic petrographic characterization and on thin sections using a polarizing microscope, mineralogical by X-ray diffraction and geomechanical by Simple and Los Angeles compression tests using quarry samples from the Kimwenza and Kinsuka sandstones. Petrographically, they are essentially arkosic sandstones. X-ray diffraction reveals the abundance of quartz in our sandstones. It also allowed the detection of minerals containing titanium in addition to feldspars. The simple compression test showed that these sandstones follow mode A from the point of view of rupture and that these sandstones belong to the class of medium strength from the point of view of the classification of resistance to simple compression. The Los Angeles test suggests that these sandstones have a coefficient in the good to average range. And therefore, on a geomechanical level, the sandstones studied in the two quarries of Kimwenza and Kinsuka are suitable for various construction works.

Keywords: Geomaterials; petrography; mineralogy; geomechanics; X-ray diffraction (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbngbr:v:8:y:2024:i:2:p:146-154

DOI: 10.26480/gbr.02.2024.146.154

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