Toward performance improvement of supersulfated cement by nano silica: Asynchronous regulation on the hydration kinetics of silicate and aluminate

Heng Chen; Pengkun Hou; Xiangming Zhou; Leon Black; Adu-Amankwah Sam; Pan Feng; Na  Cui; Michal A. Glinicki; Yamei Cai; Shipeng Zhang; Pipi Zhao; Qinfei Li; Xin Cheng

doi:https://doi.org/10.1016/j.cemconres.2023.107117

Toward performance improvement of supersulfated cement by nano silica: Asynchronous regulation on the hydration kinetics of silicate and aluminate

Heng Chen, Pengkun Hou^*, Xiangming Zhou, Leon Black, Adu-Amankwah Sam, Pan Feng, Na Cui, Michal A. Glinicki, Yamei Cai, Shipeng Zhang, Pipi Zhao^*, Qinfei Li^*, Xin Cheng

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Supersulfated cement (SSC) is a traditional low-carbon cement, but its slow hydration and strength development has limited its practical applications. Nano silica (NS) was used to activate the hydration of SSC by taking advantage of its ability to regulate silicate and aluminate reactions. The mechanical performance of various mixes was determined, as a function of sulfation degree and NS addition, as pore structure, phase assemblage, hydration degree, and microstructure. Results showed that NS improves the hydration degree of slag, densifies the microstructure, and significantly increases both early- and late-age compressive strength. The enhancement was attributed to its effects on the hydration of slag in SSC: delaying ettringite formation, but promoting C-(A)-S-H precipitation, reducing microporosity. This study reveals the critical role of the regulation of hydration kinetics of silicate and aluminate in controlling the performance of SSC as NS does.

Original language	English
Article number	107117
Number of pages	11
Journal	Cement and Concrete Research
Volume	167
Early online date	10 Feb 2023
DOIs	https://doi.org/10.1016/j.cemconres.2023.107117
Publication status	Published - May 2023

Bibliographical note

The authors gratefully acknowledge support from National Natural Science Foundation of China (52102021), National Natural Science Foundation of China Regional Innovation and Development Joint Fund (U22A20126), Shandong Province Natural Science Foundation (ZR2021QE058, ZR2020YQ33), Department of Education of Shandong Province (2019GGX102077), Science and Technology Innovation Support Plan for Young Researchers in Institutes of Higher Education in Shandong (2019KJA017). This project has also received funding from the European Union’s Horizon 2020 - Research and Innovation Framework Programme under the H2020 Marie Skłodowska-Curie Actions grant agreement No [893469], and funding from Youth Innovation Support Program of Shandong Colleges and Universities, which is also appreciated.

Copyright © 2023 Elsevier Ltd. All rights reserved.

Keywords

supersulfated cement
nano silica
gypsum content
mechanical property
microstructure

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toward performance improvement of supersulfated cement by nano silica- Asynchronous regulation on the hydration kinetics of silicate and aluminate- Author Accepted
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Chen, H., Hou, P., Zhou, X., Black, L., Sam, A.-A., Feng, P., Cui, N., Glinicki, M. A., Cai, Y., Zhang, S., Zhao, P., Li, Q., & Cheng, X. (2023). Toward performance improvement of supersulfated cement by nano silica: Asynchronous regulation on the hydration kinetics of silicate and aluminate. Cement and Concrete Research, 167, Article 107117. https://doi.org/10.1016/j.cemconres.2023.107117

@article{b02b3200ea9f4495994438afaaa22abc,

title = "Toward performance improvement of supersulfated cement by nano silica: Asynchronous regulation on the hydration kinetics of silicate and aluminate",

abstract = "Supersulfated cement (SSC) is a traditional low-carbon cement, but its slow hydration and strength development has limited its practical applications. Nano silica (NS) was used to activate the hydration of SSC by taking advantage of its ability to regulate silicate and aluminate reactions. The mechanical performance of various mixes was determined, as a function of sulfation degree and NS addition, as pore structure, phase assemblage, hydration degree, and microstructure. Results showed that NS improves the hydration degree of slag, densifies the microstructure, and significantly increases both early- and late-age compressive strength. The enhancement was attributed to its effects on the hydration of slag in SSC: delaying ettringite formation, but promoting C-(A)-S-H precipitation, reducing microporosity. This study reveals the critical role of the regulation of hydration kinetics of silicate and aluminate in controlling the performance of SSC as NS does.",

keywords = "supersulfated cement, nano silica, gypsum content, mechanical property, microstructure",

author = "Heng Chen and Pengkun Hou and Xiangming Zhou and Leon Black and Adu-Amankwah Sam and Pan Feng and Na Cui and Glinicki, {Michal A.} and Yamei Cai and Shipeng Zhang and Pipi Zhao and Qinfei Li and Xin Cheng",

note = "The authors gratefully acknowledge support from National Natural Science Foundation of China (52102021), National Natural Science Foundation of China Regional Innovation and Development Joint Fund (U22A20126), Shandong Province Natural Science Foundation (ZR2021QE058, ZR2020YQ33), Department of Education of Shandong Province (2019GGX102077), Science and Technology Innovation Support Plan for Young Researchers in Institutes of Higher Education in Shandong (2019KJA017). This project has also received funding from the European Union{\textquoteright}s Horizon 2020 - Research and Innovation Framework Programme under the H2020 Marie Sk{\l}odowska-Curie Actions grant agreement No [893469], and funding from Youth Innovation Support Program of Shandong Colleges and Universities, which is also appreciated. Copyright {\textcopyright} 2023 Elsevier Ltd. All rights reserved.",

year = "2023",

month = may,

doi = "https://doi.org/10.1016/j.cemconres.2023.107117",

language = "English",

volume = "167",

journal = "Cement and Concrete Research",

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Chen, H, Hou, P, Zhou, X, Black, L, Sam, A-A, Feng, P, Cui, N, Glinicki, MA, Cai, Y, Zhang, S, Zhao, P, Li, Q & Cheng, X 2023, 'Toward performance improvement of supersulfated cement by nano silica: Asynchronous regulation on the hydration kinetics of silicate and aluminate', Cement and Concrete Research, vol. 167, 107117. https://doi.org/10.1016/j.cemconres.2023.107117

TY - JOUR

T1 - Toward performance improvement of supersulfated cement by nano silica: Asynchronous regulation on the hydration kinetics of silicate and aluminate

AU - Chen, Heng

AU - Hou, Pengkun

AU - Zhou, Xiangming

AU - Black, Leon

AU - Sam, Adu-Amankwah

AU - Feng, Pan

AU - Cui, Na

AU - Glinicki, Michal A.

AU - Cai, Yamei

AU - Zhang, Shipeng

AU - Zhao, Pipi

AU - Li, Qinfei

AU - Cheng, Xin

N1 - The authors gratefully acknowledge support from National Natural Science Foundation of China (52102021), National Natural Science Foundation of China Regional Innovation and Development Joint Fund (U22A20126), Shandong Province Natural Science Foundation (ZR2021QE058, ZR2020YQ33), Department of Education of Shandong Province (2019GGX102077), Science and Technology Innovation Support Plan for Young Researchers in Institutes of Higher Education in Shandong (2019KJA017). This project has also received funding from the European Union’s Horizon 2020 - Research and Innovation Framework Programme under the H2020 Marie Skłodowska-Curie Actions grant agreement No [893469], and funding from Youth Innovation Support Program of Shandong Colleges and Universities, which is also appreciated. Copyright © 2023 Elsevier Ltd. All rights reserved.

PY - 2023/5

Y1 - 2023/5

N2 - Supersulfated cement (SSC) is a traditional low-carbon cement, but its slow hydration and strength development has limited its practical applications. Nano silica (NS) was used to activate the hydration of SSC by taking advantage of its ability to regulate silicate and aluminate reactions. The mechanical performance of various mixes was determined, as a function of sulfation degree and NS addition, as pore structure, phase assemblage, hydration degree, and microstructure. Results showed that NS improves the hydration degree of slag, densifies the microstructure, and significantly increases both early- and late-age compressive strength. The enhancement was attributed to its effects on the hydration of slag in SSC: delaying ettringite formation, but promoting C-(A)-S-H precipitation, reducing microporosity. This study reveals the critical role of the regulation of hydration kinetics of silicate and aluminate in controlling the performance of SSC as NS does.

AB - Supersulfated cement (SSC) is a traditional low-carbon cement, but its slow hydration and strength development has limited its practical applications. Nano silica (NS) was used to activate the hydration of SSC by taking advantage of its ability to regulate silicate and aluminate reactions. The mechanical performance of various mixes was determined, as a function of sulfation degree and NS addition, as pore structure, phase assemblage, hydration degree, and microstructure. Results showed that NS improves the hydration degree of slag, densifies the microstructure, and significantly increases both early- and late-age compressive strength. The enhancement was attributed to its effects on the hydration of slag in SSC: delaying ettringite formation, but promoting C-(A)-S-H precipitation, reducing microporosity. This study reveals the critical role of the regulation of hydration kinetics of silicate and aluminate in controlling the performance of SSC as NS does.

KW - supersulfated cement

KW - nano silica

KW - gypsum content

KW - mechanical property

KW - microstructure

UR - https://www.sciencedirect.com/science/article/pii/S0008884623000297

UR - http://www.scopus.com/inward/record.url?scp=85147649598&partnerID=8YFLogxK

U2 - https://doi.org/10.1016/j.cemconres.2023.107117

DO - https://doi.org/10.1016/j.cemconres.2023.107117

M3 - Article

SN - 0008-8846

VL - 167

JO - Cement and Concrete Research

JF - Cement and Concrete Research

M1 - 107117

ER -

Toward performance improvement of supersulfated cement by nano silica: Asynchronous regulation on the hydration kinetics of silicate and aluminate

Abstract

Bibliographical note

Keywords

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