The effect of alkalis on some properties of Sudanese cement
Joint Authors
Ali, al-Miqdad Ahmad
Ibn Idris, Muna A.
Source
Journal of Science and Technology : in Natural and Medical Sciences
Issue
Vol. 17, Issue 1 (30 Jun. 2016), pp.17-25, 9 p.
Publisher
Sudan University of Science and Technology Deanship of Scientific Research
Publication Date
2016-06-30
Country of Publication
Sudan
No. of Pages
9
Main Subjects
Topics
Abstract EN
The aim of this work was to study the effect of alkali metal oxides, (Na2O and K2O) on some properties of Portland Sudanese cements.
The physical properties investigated were compressive strength at (2, 7 and 28 days), initial and final setting time, soundness and expansion.
Three brands of cements (El Salam, Atbara and Berber) were analyzed by flame photometry to evaluate their alkali levels.
It was found that Berber sample had the lowest alkali content (0.7%).
Additive values of 2%, 4% and 6% alkalis (as sodium hydroxide solution), were performed to check the effect of increased alkalinity on strength, setting and soundness.
The expansion test was performed on the three samples of cement with 5% alkali addition .Alkali addition reduced both, the compressive and flexural strength properties of Berber cement.
Initial and final setting time, were more reduced, and soundness followed the same pattern.
In contrast to Berber cement Atbara and Al salam, recorded greater expansion than the permitted maximum percentage of 0.6%.
The high alkali content detected in the final product caused many difficulties and affected adversely its properties.
Serious attempts to decrease alkali contents in Sudanese cement, hence, become necessary.
American Psychological Association (APA)
Ibn Idris, Muna A.& Ali, al-Miqdad Ahmad. 2016. The effect of alkalis on some properties of Sudanese cement. Journal of Science and Technology : in Natural and Medical Sciences،Vol. 17, no. 1, pp.17-25.
https://search.emarefa.net/detail/BIM-746832
Modern Language Association (MLA)
Ibn Idris, Muna A.& Ali, al-Miqdad Ahmad. The effect of alkalis on some properties of Sudanese cement. Journal of Science and Technology : in Natural and Medical Sciences Vol. 17, no. 1 (Jun. 2016), pp.17-25.
https://search.emarefa.net/detail/BIM-746832
American Medical Association (AMA)
Ibn Idris, Muna A.& Ali, al-Miqdad Ahmad. The effect of alkalis on some properties of Sudanese cement. Journal of Science and Technology : in Natural and Medical Sciences. 2016. Vol. 17, no. 1, pp.17-25.
https://search.emarefa.net/detail/BIM-746832
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 24-25
Record ID
BIM-746832