Zobrazeno 1 - 10
of 53
pro vyhledávání: '"C. Nkoumbou"'
Autor:
A. Nzeukou Nzeugang, D. Tsozué, B. Kagonbé Pagna, A. Balo Madi, A. Fankam Deumeni, S. Ngos, C. Nkoumbou, N. Fagel
Publikováno v:
SN Applied Sciences, Vol 3, Iss 5, Pp 1-14 (2021)
Abstract In this study, clayey soils are characterized as backfill and potential fusible raw materials for engineering. Geotechnical tests (particle size distribution, Atterberg limits, densities) and chemico-mineralogical analyses (X-ray fluorescenc
Externí odkaz:
https://doaj.org/article/250bb5f92dee4edba2a18dcd68a7280d
Autor:
Désiré Tsozué, B. Kagonbé Pagna, S. Ngos, A. Fankam Deumeni, A. Balo Madi, Nathalie Fagel, A. Nzeukou Nzeugang, C. Nkoumbou
Publikováno v:
SN Applied Sciences, Vol 3, Iss 5, Pp 1-14 (2021)
In this study, clayey soils are characterized as backfill and potential fusible raw materials for engineering. Geotechnical tests (particle size distribution, Atterberg limits, densities) and chemico-mineralogical analyses (X-ray fluorescence, X-ray
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ebca08916dd5167d36a57054d9df542
https://doaj.org/article/250bb5f92dee4edba2a18dcd68a7280d
https://doaj.org/article/250bb5f92dee4edba2a18dcd68a7280d
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 24, Iss 1, Pp 39-46 (2010)
The chemical and mineralogical characterization of raw feldspathic materials from Dschang (Cameroon) was realized by means of X-ray diffraction, differential thermal analyses, optical and scanning electron microscopies, and analytical techniques. It
Externí odkaz:
https://doaj.org/article/79645b5be5174c22b1bdd53c241c33de
Autor:
Chantale Njiomou Djangang, Antoine Elimbi, Daniel Njopwouo, Julien Soro, C. Nkoumbou, Philippe Blanchart, Gisèle Laure Lecomte, Uphie Chinje Melo, Jacques Yvon
Publikováno v:
Applied Clay Science. 39:10-18
Refractory ceramic bricks were prepared by mixing chamotte to sand-poor Mayouom and sandy Mvan clays, with 30 to 50 wt.% and 10 to 30 wt.% of chamotte, respectively. Samples were shaped by uniaxial pressing of wet granules and fired between 1200 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3436b30b8caa146b831b17b2a1b14c55
https://doi.org/10.1016/j.clay.2007.04.006
https://doi.org/10.1016/j.clay.2007.04.006
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Caractérisation chimique et minéralogique de quelques indices de bauxite de Foumban (Ouest-Cameroun)
Publikováno v:
International Journal of Biological and Chemical Sciences; Vol 11, No 1 (2017); 444-452
Trois échantillons de matériaux dénommés BF11, BF22 et BF33 provenant de Foumban ont fait l’objet d’étude chimique et minéralogique. Les résultats obtenus montrent que la teneur en Al2O3 se situe dans l’intervalle 46,15-59,27% pour les m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f4007ed5efc957ed363e97da9a253e8
https://doi.org/10.4314/ijbcs.v11i1.35
https://doi.org/10.4314/ijbcs.v11i1.35
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Journal of Petrology. 36:373-395
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc5ec669a0a1432000a44b1b08b8c5d1
https://doi.org/10.1093/petrology/36.2.373
https://doi.org/10.1093/petrology/36.2.373
Autor:
C. Nkoumbou, Philippe Blanchart, Chantale Njiomou Djangang, Uphie Chinje Melo, Antoine Elimbi, Julien Soro, Daniel Njopwouo, Gisèle Laure Lecomte, Jean Pierre Bonnet
Publikováno v:
Ceramics International
Ceramics International, Elsevier, 2008, 34 (5), pp.1207-1213
Ceramics International, Elsevier, 2008, 34 (5), pp.1207-1213
Clay-chamotte composites were realized for manufacturing refractory bricks. We used two kaolinitic refractory clays mined in Cameroon and two calcined clays (chamottes) with a large grain size (0.1–4 mm). Clay-chamotte composites containing various
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c61abd41fcd1743d11716085e2c7605
https://hal-unilim.archives-ouvertes.fr/hal-00630450
https://hal-unilim.archives-ouvertes.fr/hal-00630450
Publikováno v:
African Journal of Science and Technology; Vol 5, No 2 (2004)
On the Adamawa plateau (Cameroon volcanic line), alkali basalt lava flows are dated at 6.5 ± 0.2 Ma by K-Ar method. Associated phonolitic and trachytic plugs were put in place 6.8 to 6.2 ± 0.2 Ma ago. The most recent volcanic episode aged 0.91 ± 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::395b640c6af7fe6e9a069e5c277a0413
https://doi.org/10.4314/ajst.v5i2.15338
https://doi.org/10.4314/ajst.v5i2.15338