Effect of Nano-SiO2 on Optimum Gypsum Content in Supersulfate Cement

Abstract

Abstract: There is an optimum gypsum content in supersulfate cement (SSC), although nano-SiO₂ (NS) can effectively improve the strength of SSC, but it can inhibit the hydration reaction of gypsum and aluminum phase, and the optimum gypsum content is changed. So optimizing the content of gypsum in the system is expected to further improve the performance of SSC. In this paper, the effect of mixing with or without 3% (mass fraction) NS on the mechanical and microscopic properties of SSC with gypsum content (5.0%~15.0%, mass fraction) was studied. The results show that the overall strength of SSC without NS develops slowly, the strength shows a downward trend with the increase of gypsum content at 1 d, and the optimum gypsum content is 7.5%. When NS is added, the strength increases significantly, the 3~28 d strength increases 100%~200%, the optimum gypsum content shows an increasing trend and the maximum strength is obtained when the gypsum content is 15.0% (the maximum content designed in this paper). NS lags gypsum consumption rate and inhibits ettringite formation, but does not affect the final consumption of gypsum. After the addition of NS, the chemical binding water content and gypsum consumption of SSC show an increasing trend, indicating that the demand for gypsum in the system increases. By exploring the change of the optimal gypsum content in NS-modified SSC, this paper provides new ideas for further reducing the amount of mineral powder, and improving the green and low carbon properties of SSC.

Key words: supersulfate cement, nano-SiO₂, gypsum content, slag, ettringite, compressive strength

CLC Number:

TQ172

WANG Ruoyu, WANG Huanhuan, CHEN Heng, HOU Pengkun, LI Beibei. Effect of Nano-SiO₂ on Optimum Gypsum Content in Supersulfate Cement[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 995-1002.

References

[1] WU Q Y, XUE Q Z, YU Z Q. Research status of super sulfate cement[J]. Journal of Cleaner Production, 2021, 294: 126228.
[2] LEA F M, HEWLETT P C, LISKA M. Lea's chemistry of cement and concrete[M]. 5th ed. Builington: Butterworth-Heinemann, 2004: 664-667.
[3] GRUSKOVNJAK A, LOTHENBACH B, HOLZER L, et al. Hydration of alkali-activated slag: comparison with ordinary Portland cement[J]. Advances in Cement Research, 2006, 18(3): 119-128.
[4] CABRERA-LUNA K, MALDONADO-BANDALA E E, NIEVES-MENDOZA D, et al. Supersulfated binders based on volcanic raw material: optimization, microstructure and reaction products[J]. Construction and Building Materials, 2018, 176: 145-155.
[5] 孙正宁, 周健, 慕儒, 等. 新型超硫酸盐水泥水化硬化机理[J]. 硅酸盐通报, 2019, 38(8): 2362-2368.
SUN Z N, ZHOU J, MU R, et al. Hydration and hardening mechanisms of newly developed supersulfated cement[J]. Bulletin of the Chinese Ceramic Society, 2019, 38(8): 2362-2368 (in Chinese).
[6] 许长红, 王露, 刘数华. 一种超低水化热水泥: 超硫酸盐水泥[J]. 混凝土世界, 2017(10): 38-42.
XU C H, WANG L, LIU S H. Ultra-low hydration heat cement—super sulfate cement[J]. China Concrete, 2017(10): 38-42 (in Chinese).
[7] KÜHL H. Verfahern zur herestellung von zement aus hochofenschlacke: German, 237777[P]. 1908-12-23.
[8] MATSCHEI T, BELLMANN F, STARK J. Hydration behaviour of sulphate-activated slag cements[J]. Advances in Cement Research, 2005, 17(4): 167-178.
[9] ERDEM E, ÖLMEZ H. The mechanical properties of supersulphated cement containing phosphogypsum[J]. Cement and Concrete Research, 1993, 23(1): 115-121.
[10] ESCALANTE-GARCÍA J I, BAZALDÚA-MEDELLÍN M E, FUENTES A F, et al. Early and late hydration of supersulphated cements of blast furnace slag with fluorgypsum[J]. Materiales De Construcción, 2015, 65(317): e043.
[11] 高育欣, 余保英, 徐芬莲, 等. 超硫酸盐水泥在国内外的研究与应用现状[C]//2011年混凝土与水泥制品学术讨论会论文集. 无锡, 2011: 235-241.
GAO Y X, YU B Y, XU F L. Research and application status of supersulfate cement at home and abroad[C]//Proceedings of the 2011 Symposium on Concrete and Cement Products. Wuxi, 2011: 235-241 (in Chinese).
[12] GRUSKOVNJAK A, LOTHENBACH B, WINNEFELD F, et al. Hydration mechanisms of super sulphated slag cement[J]. Cement and Concrete Research, 2008, 38(7): 983-992.
[13] MASOUDI R, HOOTON R D. Examining the hydration mechanism of supersulfated cements made with high and low-alumina slags[J]. Cement and Concrete Composites, 2019, 103: 193-203.
[14] 林培桐, 曾宇, 赵永钢, 等. 纳米二氧化硅改性大掺量矿粉-水泥胶凝体系性能与微结构研究[J]. 硅酸盐通报, 2021, 40(2): 384-391+400.
LIN P T, ZENG Y, ZHAO Y G, et al. Property and pore structure of nano-SiO₂ modified high volume slag powder-cement cementitious system[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(2): 384-391+400 (in Chinese).
[15] KONG D Y, CORR D J, HOU P K, et al. Influence of colloidal silica sol on fresh properties of cement paste as compared to nano-silica powder with agglomerates in micron-scale[J]. Cement and Concrete Composites, 2015, 63: 30-41.
[16] 李贝贝, 陈衡, 侯鹏坤, 等. 纳米SiO₂对超硫酸盐水泥性能影响研究[J]. 硅酸盐通报, 2022, 41(5): 1494-1501.
LI B B, CHEN H, HOU P K, et al. Effect of nano-SiO₂ on properties of supersulfated cement[J]. Bulletin of the Chinese Ceramic Society, 2022, 41(5): 1494-1501 (in Chinese).
[17] HOU P K, QIAN J S, CHENG X, et al. Effects of the pozzolanic reactivity of nanoSiO₂ on cement-based materials[J]. Cement and Concrete Composites, 2015, 55: 250-258.
[18] LI B B, HOU P K, CHEN H, et al. GGBS hydration acceleration evidence in supersulfated cement by nano-SiO₂[J]. Cement and Concrete Composites, 2022, 132: 104609.
[19] 王辛洺. 硅基微纳颗粒影响硫酸盐与水泥作用的矿物水化机制研究[D]. 济南: 济南大学, 2020.
WANG X M. Study on mineral hydration mechanism of silicon-based micro-nano particles affecting the interaction between sulfate and cement[D]. Jinan: University of Jinan, 2020 (in Chinese).
[20] 刘数华, 王露, 余保英. 超硫酸盐水泥的水化机理及工程应用综述[J]. 混凝土世界, 2018(10): 46-51.
LIU S H, WANG L, YU B Y. The hydration mechanism of super-sulphate cement and its application[J]. China Concrete, 2018(10): 46-51 (in Chinese).
[21] RUBERT S, ANGULSKI DA LUZ C, VARELA M V F, et al. Hydration mechanisms of supersulfated cement[J]. Journal of Thermal Analysis and Calorimetry, 2018, 134(2): 971-980.
[22] CHEN H, HOU P K, ZHOU X M, et al. Toward performance improvement of supersulfated cement by nano silica: asynchronous regulation on the hydration kinetics of silicate and aluminate[J]. Cement and Concrete Research, 2023, 167: 107117.
[23] DE WEERDT K, BEN HAHA M, LE SAOUT G, et al. Hydration mechanisms of ternary Portland cements containing limestone powder and fly ash[J]. Cement and Concrete Research, 2011, 41(3): 279-291.
[24] SCHÖLER A, LOTHENBACH B, WINNEFELD F, et al. Hydration of quaternary Portland cement blends containing blast-furnace slag, siliceous fly ash and limestone powder[J]. Cement and Concrete Composites, 2015, 55: 374-382.
[25] KAPELUSZNA E, KOTWICA Ł, MALATA G, et al. The effect of highly reactive pozzolanic material on the early hydration of alite-C₃A-gypsum synthetic cement systems[J]. Construction and Building Materials, 2020, 251: 118879.

Effect of Nano-SiO₂ on Optimum Gypsum Content in Supersulfate Cement

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	FU Wanwan, LAO Jiayue, GUO Keyu, CHEN Liuwei, WU Shifang, ZHOU Wei, TAN Xiaoming, PENG Hao. Preparation and Performance of Sleeve Grouting Material Modified with Polymer Emulsion for Prefabricated Buildings [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 833-843.
[2]	ZHANG Mengzhen, LOU Guanghui, LIU Zixian, CAI Jiwei, XU Gelong, QIAO Yijia, ZHANG Xiangfei. Effect of Ferrous Sulfate on Properties and Hydration Products of Aluminate Cement Paste [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 844-850.
[3]	NING Huiyuan, ZHANG Ju, YAN Changwang, BAI Ru. Prediction and Analysis of Strength Response of Calcium Carbide Slag Excited Coal Gangue Geopolymer Based on Gaussian Process Regression Model [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 905-913.
[4]	JIANG Mingshen, LI Fei, ZHOU Li'an, NING Jiarui, ZHANG Zheng. Effects of Sodium Carbonate, Sodium Hydroxide and Water Glass Composite Activation on Properties of Geopolymer Cementitious Materials [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 929-937.
[5]	CHEN Shijun, GONG Mulian, LIU Suyi, HUA Sixu, JIN Xiuwei, WANG Hao. Durability of Ternary Geopolymer Grouting Materials Based on Response Surface Methodology [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 938-947.
[6]	GE Keyu, LONG Yong, CHEN Luyi, LI Xin, LIU Kaizhi, WANG Yu, SUN Tao. Effects of Mixing Mineral Admixtures on Properties of Ultra High Performance Wet-Joint Concrete [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 948-955.
[7]	LI Zichao, ZHU Junge, YUE Hongzhi, MA Laijun, ZHAO Haoyu, ZHONG Jiayi. Freeze-Thaw Resistance of Activated Red Mud Based Cementitious Materials [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 965-976.
[8]	XUE Wenhao, JIAN Shouwei, LI Baodong, HUANG Jianxiang, TAN Hongbo, MA Xiaoyao, WANG Caifeng. Effects of Different Biomass Slags on Slurry Properties and Mechanical Properties of Autoclaved Aerated Concrete [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 987-994.
[9]	HU Chuan, YANG Wenwei, ZHAO Huanhuan. Effect and Mechanism Analysis of CaF₂ Sludge on Ordinary Portland Cement [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 1030-1038.
[10]	DING Zheng, LIAO Guosheng, LIAO Yishun, HE Junlin, HU Sida. Influence Mechanism of Waste Slurry in Mixing Station on Hydration Hardening of Cement [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 1039-1047.
[11]	CHEN Dongli. Preparation of Cordierite Based Porous Ceramics byImpregnation Method [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 1070-1077.
[12]	GUO Weijie, ZHU Tianbin, LI Yawei, LIAO Ning, SANG Shaobai, XU Yibiao, YAN Wen. Application of FactSage Thermodynamic Calculation on Slag Corrosion Resistance of Refractories [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 1110-1122.
[13]	XU Xinqiang, HAN Fangyuan, CHEN Weibin, XU Tengfei, CUI Yu. Influence of Steel Slag Fine Powder on Properties of Asphalt Mortar and Mixture [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 1153-1161.
[14]	LI Chao, JIANG Yunliang, LI Shaoyong, YAN Feng, TANG Changxi, LI Xiaolong. Effect of Steel Slag Fine Aggregate on Road Performance of Cement Stabilised Sandstone Base Layer [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 1172-1180.
[15]	NI Yongjun, LI Wenrong, SONG Weichang, ZHANG Shenghua, LI Jun, TIAN Qian, GUAN Bowen. Effect and Performance of Microbial Healing Technology on Mortar Through Injection Method at Low Temperature [J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(2): 478-486.