International Journal of Applied Science and Engineering

Published by Chaoyang University of Technology

M Talha Junaid1*, Abdul Saboor Karzad1#, Moussa Leblouba1

1 Department of Civil & Environmental Engineering, College of Engineering, University of Sharjah, Sharjah, P. O. Box 27272, UAE
# Present Address: Department of Civil Engineering, College of Engineering, American University of Sharjah, Sharjah, P. O. Box 26666, UAE


 

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ABSTRACT


This research paper reports results of strength development properties of ambient-cured alkali activated binders (AABs) and their reliance on different parameters, such as type of pre-cursor materials & their proportions, type & ratio of activators, and curing age. In this research study sodium silicate (SS) and sodium hydroxide (SH) solutions were used to activate a blend of low-calcium (class F) fly ash (FA) and ground granulated blast furnace slag (GGBFS). A total of 25 AABs mixes with various mix proportions are investigated in this research study. The results indicate that AABs can be manufactured with strength properties similar to ordinary Portland cement concrete (OPC). For further insight into the mechanical property variations of these samples SEM and EDS tests are conducted and their micrographs are presented here. A previously proposed analytical model to predict the compressive stress-strain response of these AABs is also modified in this study to better capture their post peak behaviour.


Keywords: Alkali activated binder, Elastic modulus, Compressive strength, Flexural strength, Stress-strain, SEM, EDS.


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ARTICLE INFORMATION


Received: 2020-12-28
Revised: 2021-04-25
Accepted: 2021-07-21
Publication Date: 2021-09-01


Cite this article:

Junaid, M.T., Karzad, A.S., Leblouba, M. 2021. Investigation on the properties of ambient cured alkali activated binder concrete. International Journal of Applied Science and Engineering, 18, 2020339. https://doi.org/10.6703/IJASE.202109_18(5).018

  Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


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