Zobrazeno 1 - 10
of 97
pro vyhledávání: '"D. Njopwouo"'
Publikováno v:
Journal of Asian Ceramic Societies, Vol 3, Iss 3, Pp 360-367 (2015)
This study reports the use of calcined talc for cementitious products making. The calcination is used to enhance the availability of magnesium from talc to react with phosphate for cement phase formation. It is shown that previous calcination of talc
Externí odkaz:
https://doaj.org/article/7793e90ed6e34b0fb2c2d8176cd1ab38
Publikováno v:
Journal of Asian Ceramic Societies, Vol 2, Iss 4, Pp 387-398 (2014)
The aim of this work is to valorize volcanic scoria by using them as starting material for geopolymers production. Nevertheless, volcanic scoria possesses low reactivity. Various amounts of metakaolin (5%, 10%, 15%, 20% and 25%) were added into two v
Externí odkaz:
https://doaj.org/article/f0055ebf54614e46addce265b87e2908
Publikováno v:
Journal of Asian Ceramic Societies, Vol 2, Iss 3, Pp 263-267 (2014)
This study reports the characterization of a talc from Cameroon as a possible source material for cement formulation. To that end, the talc sample was characterized and mixed with a solution of sodium polyphosphate to formulate the cementitious produ
Externí odkaz:
https://doaj.org/article/f26cd02c1c3c4f9da6db288d2d32e81b
Akademický článek
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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
Akademický článek
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Autor:
Armand Sylvain Ludovic Wouatong, S. Tchounang Kouonang, J. G. Deutou Nemaleu, D. Njopwouo, K. P. B. Yerima
Publikováno v:
Interceram - International Ceramic Review. 65:87-95
Two clayey raw materials from Bamessing (Cameroon) were used to prepare handmade brick samples which were fired under oxidizing conditions (900–1100°C) to evaluate their possible use in the brick-making industry. The T1 sample is clay-silty-sand a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b2514ce7f7b9958b0e6c78a2be6bda7
https://doi.org/10.1007/bf03401157
https://doi.org/10.1007/bf03401157
Publikováno v:
Journal of Building Engineering
Journal of Building Engineering, Elsevier, 2016, 5, pp.254-259. ⟨10.1016/j.jobe.2016.01.006⟩
Journal of Building Engineering, Elsevier, 2016, 5, pp.254-259. ⟨10.1016/j.jobe.2016.01.006⟩
This study reports the effect of the incorporation of corn cob from Baleng (Cameroon) as pore forming agent in the production of porous ceramic brick. The bricks were prepared with addition of increasing amount of corn cob (0, 2, 5, 10, and 15 wt%) i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7412439fdfd15cb952714f731077eb2b
https://doi.org/10.1016/j.jobe.2016.01.006
https://doi.org/10.1016/j.jobe.2016.01.006
Publikováno v:
Chemical Engineering Journal. 173:303-308
Highly oxidizing gaseous species ( OH, NO and derivatives) formed in an electrical discharge (a gliding discharge burning in humid air), are suitable for abating the organic pollutant concentration of surface waters sampled in Cameroonian brooks, e.g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f53ed8a79e41956f3eff74810ed5801f
https://doi.org/10.1016/j.cej.2011.07.021
https://doi.org/10.1016/j.cej.2011.07.021
Publikováno v:
Materials Characterization. 61:289-295
Microstructure of vitreous ceramic samples manufactured from kaolinitic-clay and feldspars raw materials from Cameroon was investigated in the range 1150–1250 °C by X-ray diffraction and scanning electron microscopy and by measuring some technolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09b82ed9dbc7a741846470005b45c75a
https://doi.org/10.1016/j.matchar.2009.12.009
https://doi.org/10.1016/j.matchar.2009.12.009