Chemical and Physical Analyses of Selected Cement Samples in Nigerian Market
DOI:
https://doi.org/10.3329/bjsir.v44i1.2712Keywords:
Cement, Diamond, Dangote, Metal oxide, Pure Chem and Quality paramatersAbstract
The chemical and physical analysis of Diamond, Pure Chem, Dangote and Elephant cements in Nigerian market have been carried out by analysis of metal oxides (A12O3, SiO2, CaO, etc.), physical characteristics of the samples (setting time, loss on ignition, insoluble residue, specific surface area, etc.) and important factors for predicting effectiveness of the cement samples.The mean value of CaO, SiO2, K2O, and A12O3 were 61.45 ± 0.22 and 5.57 ± 0.38 with percentage coefficient of variance as 2.15, 0.92, 53.66 and 6.82, respectively. Dangote had the least CaO (59.60%), insoluble residue (4.70) and setting time (195 sec) while pure chem had the highest specific surface area of 412 m2/kg with Diamond having the least percentage loss on ignition of 5.50. The mean values for time saturation factor, silica ratio, free lime and alumina ratio were 90.10 ± 3.02, 2.23 ± 0.10, 169.00 ± 0.13 and ± 0.79 respectively. The coefficient of variation suggests that there were no significant differences between all these factors except free lime. Pure chem has a free lime value of 2.28 which is highly significance compared with others. An empirical equation has been suggested to predict the variation of the compressive strength against time, which agrees very well with the experimental results.
Key words: Cement, Diamond, Dangote, Metal oxide, Pure Chem and Quality paramaters.
doi: 10.3329/bjsir.v44i1.2712
Bangladesh J. Sci. Ind. Res. 44(1), 41-50, 2009
Downloads
523
192
Downloads
How to Cite
Issue
Section
License
Bangladesh Council of Scientific and Industrial Research (BCSIR) holds the copyright to all contents published in Bangladesh Journal of Scientific and Industrial Research (BJSIR). A copyright transfer form should be signed by the author(s) and be returned to BJSIR.
The entire contents of the BJSIR are protected under Bangladesh Council of Scientific and Industrial Research (BCSIR) copyrights.
BJSIR is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC) Creative Commons Attribution-NonCommercial 4.0 International License which allows others remix, tweak, and build upon the articles non-commercially, and although their new works must also acknowledge and be non-commercial, they dont have to license their derivative works on the same terms.
