The effectiveness of different superplasticizers in ambient cured one-part alkali activated pastes
Publication type: Journal Article
Publication date: 2019-03-01
scimago Q1
wos Q1
SJR: 4.446
CiteScore: 22.5
Impact factor: 13.1
ISSN: 09589465, 1873393X
General Materials Science
Building and Construction
Abstract
This paper investigates the effect of using different admixtures on the one-part ambient-cured alkali activated pastes. Na2SiO3-Anhydrous powder was used as solid activator along with three superplasticizers including naphthalene, melamine and polycarboxylate with different water/precursor ratios. The flowability, setting time and compressive strength development were evaluated for all AAMs mixes. ATR-FTIR test was used to check the admixtures stability in high alkali media. All types of admixtures significantly improved the flowability of the Na2SiO3-anhydrous one-part AAMs and marginally affected the compressive strength. The results showed that polycarboxylate was effective for high water/precursor (≥0.36) while naphthalene performed better in case of low water/precursor (≤0.36) for Na2SiO3-anhydrous one-part AAMs. However, lowering the water/precursor ratio in the Na2SiO3-anhydrous one-part AAMs using superplasticizers showed no improvement or modest improvement in the compressive strength. The ATR-FTIR results revealed the relatively high stability of admixtures in Na2SiO3 alkali medium of one-part AAMs (for w/b = 0.4).
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Total citations:
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Citations from 2024:
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Alrefaei Y., Wang Y., DAI J. The effectiveness of different superplasticizers in ambient cured one-part alkali activated pastes // Cement and Concrete Composites. 2019. Vol. 97. pp. 166-174.
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Alrefaei Y., Wang Y., DAI J. The effectiveness of different superplasticizers in ambient cured one-part alkali activated pastes // Cement and Concrete Composites. 2019. Vol. 97. pp. 166-174.
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TY - JOUR
DO - 10.1016/j.cemconcomp.2018.12.027
UR - https://doi.org/10.1016/j.cemconcomp.2018.12.027
TI - The effectiveness of different superplasticizers in ambient cured one-part alkali activated pastes
T2 - Cement and Concrete Composites
AU - Alrefaei, Yazan
AU - Wang, Yanshuai
AU - DAI, JIANGUO
PY - 2019
DA - 2019/03/01
PB - Elsevier
SP - 166-174
VL - 97
SN - 0958-9465
SN - 1873-393X
ER -
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@article{2019_Alrefaei,
author = {Yazan Alrefaei and Yanshuai Wang and JIANGUO DAI},
title = {The effectiveness of different superplasticizers in ambient cured one-part alkali activated pastes},
journal = {Cement and Concrete Composites},
year = {2019},
volume = {97},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016/j.cemconcomp.2018.12.027},
pages = {166--174},
doi = {10.1016/j.cemconcomp.2018.12.027}
}