Development of low absorption and high-resistant sodium acetate concrete for severe environmental conditions

Mazen J. Al-kheetan, Seyed Hamidreza Ghaffar, Omar Abo Madyan, Mujib M. Rahman

Research output: Contribution to journalArticle

Abstract

This research presents new insight on the performance of concrete when integrated with sodium acetate and cured under extremely harsh environmental conditions: freezing temperature of −25 °C and hot temperature of 60 °C. Mechanical properties, water absorption, microstructural analysis and interaction mechanism of concrete and sodium acetate were evaluated by conducting the compressive strength test, Initial Surface Absorption Test (ISAT), Scanning Electron Microscope (SEM) analysis and Fourier-transform Infrared Spectroscopy (FTIR) analysis. Despite the harsh curing conditions, results showed an enhancement of 64% in compressive strength when 4% (based on the weight of cement) sodium acetate is incorporated within concrete with w/c ratio of 0.32 and cured under temperature of 60 °C. Also, water absorption was observed to decrease by more than 79% when 2% sodium acetate is added to concrete with w/c ratio of 0.32. SEM and FTIR analyses revealed the formation, high distribution and strong bonding of sodium acetate crystals within the concrete’s micropores.
Original languageEnglish
Article number117057
JournalConstruction and Building Materials
Volume230
Early online date26 Sep 2019
DOIs
Publication statusPublished - 10 Jan 2020

Bibliographical note

Crown Copyright 2019 Published by Elsevier Ltd. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/).

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