Synthesis and strength optimization of one-part geopolymer based on red mud
2
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
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Publication type: Journal Article
Publication date: 2016-05-01
scimago Q1
wos Q1
SJR: 2.094
CiteScore: 13.9
Impact factor: 8.0
ISSN: 09500618, 18790526
General Materials Science
Building and Construction
Civil and Structural Engineering
Abstract
One-part geopolymer was synthesized from alkali–thermal activated Bayer red mud (RM) with addition of silica to optimize its composition. The RM was pretreated through alkali–thermal activation and turned to geopolymer precursor, which could be used by only adding water in blending process. However the long-term strength of the binder with only RM was poor because of the unstable polymerization due to the low SiO 2 /Al 2 O 3 molar ratio (1.41). Silica fume (SF) was chosen to increase the SiO 2 /Al 2 O 3 molar ratio of the geopolymer formulation. By adding 25 wt% of SF, the 28 d compressive strength of the geopolymer with a SiO 2 /Al 2 O 3 molar ratio of 3.45 could reach 31.5 MPa at a water/solid ratio of 0.45. Sodium aluminosilicate in the activated RM dissolved in water and formed an alkaline environment to dissolve SF. The dissolved silica participated in geopolymerization, leading to a satisfactory geopolymer composition. Typical amorphous geopolymer matrices were formed in the binder completely cured.
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Total citations:
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Citations from 2024:
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GOST
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Ye N. et al. Synthesis and strength optimization of one-part geopolymer based on red mud // Construction and Building Materials. 2016. Vol. 111. pp. 317-325.
GOST all authors (up to 50)
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Ye N., Yang J., Liang S., Hu Y., Hu J., Xiao B., Huang Q. Synthesis and strength optimization of one-part geopolymer based on red mud // Construction and Building Materials. 2016. Vol. 111. pp. 317-325.
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RIS
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TY - JOUR
DO - 10.1016/j.conbuildmat.2016.02.099
UR - https://doi.org/10.1016/j.conbuildmat.2016.02.099
TI - Synthesis and strength optimization of one-part geopolymer based on red mud
T2 - Construction and Building Materials
AU - Ye, Nan
AU - Yang, Jiakuan
AU - Liang, Sha
AU - Hu, Yong
AU - Hu, Jingping
AU - Xiao, Bo
AU - Huang, Qifei
PY - 2016
DA - 2016/05/01
PB - Elsevier
SP - 317-325
VL - 111
SN - 0950-0618
SN - 1879-0526
ER -
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@article{2016_Ye,
author = {Nan Ye and Jiakuan Yang and Sha Liang and Yong Hu and Jingping Hu and Bo Xiao and Qifei Huang},
title = {Synthesis and strength optimization of one-part geopolymer based on red mud},
journal = {Construction and Building Materials},
year = {2016},
volume = {111},
publisher = {Elsevier},
month = {may},
url = {https://doi.org/10.1016/j.conbuildmat.2016.02.099},
pages = {317--325},
doi = {10.1016/j.conbuildmat.2016.02.099}
}