Chakraborty, S. orcid.org/0000-0002-1387-0385, Mandal, R., Chakraborty, S. et al. (2 more authors) (2021) Chemical attack and corrosion resistance of concrete prepared with electrolyzed water. Journal of Materials Research and Technology, 11. pp. 1193-1205. ISSN 2238-7854
Abstract
This work investigates the sulfate and chloride resistance of cement composites (mortar and concrete) manufactured using electrolyzed water. Control and electrolyzed water-based cement composites were prepared using distilled water and 30 min electrolyzed water, respectively. These were exposed to 5% Na2SO4, 3.5% NaCl, and a combined mixture of 5% Na2SO4 and 3.5% NaCl solution for 200 days. Additionally, rebar reinforced control and electrolyzed water-based samples were exposed to ambient air and 5% NaCl solution for 180 days, and their corrosion potential was monitored. For control specimens, the results show compressive strength losses of 5, 12.4, and 6.1% when exposed to the above solutions, respectively, whilst for electrolyzed water-based specimens, the losses were reduced to 1, 10.1, and 3.4%, respectively. Statistical analysis of the potential values from the accelerated corrosion tests also show reduced corrosion (58 mV less negative potential) in rebar embedded in electrolyzed water-based specimen (−548 mV at 180 days) than in control specimen (−606 mV). Based on the spectral and microstructural analysis, the enhanced durability performance of electrolyzed water-based specimens is attributed to the lower ingress of deleterious agents through the less porous and compact microstructure of the hardened composites.
Metadata
Authors/Creators: |
|
||||
---|---|---|---|---|---|
Copyright, Publisher and Additional Information: | © 2021 Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | ||||
Keywords: | Electrolyzed water; Concrete; Durability; Sulfate and chloride attack; Corrosion | ||||
Dates: |
|
||||
Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) | ||||
Funding Information: |
|
||||
Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 19 Mar 2021 11:01 | ||||
Last Modified: | 19 Mar 2021 11:01 | ||||
Status: | Published | ||||
Publisher: | Elsevier BV | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1016/j.jmrt.2021.01.101 |