Investigating the Role of Fly Ash and Silica Fume in the Cement Hydration Process
Journal Title: American Journal of Engineering and Applied Sciences - Year 2016, Vol 9, Issue 1
Abstract
Investigating the Role of Fly Ash and Silica Fume in the Cement Hydration Process Lucas Suarez, Taher M. Abu-Lebdeh, Miguel Picornell and Sameer A. Hamoush DOI : 10.3844/ajeassp.2016.134.145 American Journal of Engineering and Applied Sciences Volume 9, Issue 1 Pages 134-145 Abstract This research work investigates the effect of fly ash and silica fume on cement paste hydration. Percentages of each additive were selected to replace the cement by volume to be studied at five different ages using water curing and vacuum curing. These percentages were compared alongside a controlled cement paste without additives. Testing was carried out on 350 samples. Analysis methods utilized Fourier Transfer Infrared Spectroscopy (FTIR) to monitor the hydration with spectra, Scanning Electron Microscope (SEM) to generate images for regional analysis and MTS testing machine for compressive strength. Results demonstrated that silica fume replacement had the highest overall increase in the CSH and thus in the strength of the hardened cement paste that was cured by water curing. Replacement of fly ash exhibited the highest overall strength under vacuum curing. Also, FTIR and SEM testing showed an increase in the change of CSH area with age. SEM testing revealed the formation of pores, CSH and CH in images at all ages. The area of CSH grows most in early ages and diminishes over time. Although it was clear that the method of curing makes a difference in hydration, further research is needed on the method of vacuum sealing hardened cement paste. Copyright © 2016 Lucas Suarez, Taher M. Abu-Lebdeh, Miguel Picornell and Sameer A. Hamoush. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. http://thescipub.com/abstract/10.3844/ajeassp.2016.134.145
Authors and Affiliations
Lucas Suarez, Taher M. Abu-Lebdeh, Miguel Picornell, Sameer A. Hamoush
Keywords
Related Articles
- EP ID EP204082
- DOI 10.3844/ajeassp.2016.134.145
- Views 100
- Downloads 0
Discrete Vortex Prediction of Flow around Two Cylinders in Side by Side using Simple Grid System
Abstract Modelling of flows around two cylinders in side by side arrangement using a simple overlapping grid system is carried out. The use of such grid system is intended to give a considerable reduction in terms of th...
Osmotic Tension, Plasticization and Viscoelastic response of amorphous Poly-Ether-Ether-Ketone (PEEK) equilibrated in humid environments
Abstract Dynamic-Mechanical Analysis (DMA), Differential scanning Calorimetry (DSC) and water moisture sorption-desorption kinetics and equilibria have been parallely investigated to monitoring the environmental and the...
The Basic Elements of Life's
Abstract The four basic elements of life are: Oxygen, hydrogen, nitrogen and phosphorus. These four elements are found in abundance in both the human body and in animals. There are other elements that compose the human...
Model Identification and Wall-Plug Efficiency Measurement of White LED Modules
Model Identification and Wall-Plug Efficiency Measurement of White LED Modules Ahmed Zurfi and Jing Zhang DOI : 10.3844/ajeassp.2016.412.419 American Journal of Engineering and Applied Sciences Volume 9, Issue 2 Page...
Some Basic Reactions in Nuclear Fusion
Some Basic Reactions in Nuclear Fusion Relly Victoria Virgil Petrescu, Aversa Raffaella, Samuel Kozaitis, Apicella Antonio and Florian Ion Tiberiu Petrescu DOI : 10.3844/ajeassp.2017.709.716 American Journal of Enginee...