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2025 | OriginalPaper | Buchkapitel

Silicate-Based and Alkali-Free Accelerators for Shotcrete Applications: Field Study

verfasst von : Esraa ElSayed, Ahmed Soliman, M. Hesham El Naggar

Erschienen in: Proceedings of the Canadian Society for Civil Engineering Annual Conference 2023, Volume 6

Verlag: Springer Nature Switzerland

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Abstract

This research aimed to evaluate the performance of sprayed shotcrete mixtures prepared by silicate-based and alkali-free accelerators. A new innovative silicate accelerator was used at dosages of 4% and 6% and was compared to a standard silicate accelerator and an alkali-free accelerator at dosages of 6% by binder weight. Scaled-down shotcrete elements were cast to investigate the different shotcrete mixtures’ behaviour. The mechanical and microstructure properties of shotcrete mixtures at different curing ages were investigated. Results proved the competitive behaviour of the innovative silicate accelerator compared to other accelerators. Also, the new innovative silicate-based accelerator had less tendency to reduce mixtures’ compressive strength at a later age, up to 90 days.

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Literatur
1.
Zurück zum Zitat Prudencio LR Jr (1998) Accelerating admixture for shotcrete. Cem Concr Compos 20:213–219CrossRefMATH Prudencio LR Jr (1998) Accelerating admixture for shotcrete. Cem Concr Compos 20:213–219CrossRefMATH
2.
Zurück zum Zitat Han J, Wang K, Shi J et al (2014) Influence of sodium aluminate on cement hydration and concrete properties. Constr Build Mater 64:342–349CrossRefMATH Han J, Wang K, Shi J et al (2014) Influence of sodium aluminate on cement hydration and concrete properties. Constr Build Mater 64:342–349CrossRefMATH
3.
Zurück zum Zitat Salvador RP, Cavalaro SHP, Segura I et al (2016) Early age hydration of cement pastes with alkaline and alkali-free accelerators for sprayed concrete. Constr Build Mater 111:386–398CrossRefMATH Salvador RP, Cavalaro SHP, Segura I et al (2016) Early age hydration of cement pastes with alkaline and alkali-free accelerators for sprayed concrete. Constr Build Mater 111:386–398CrossRefMATH
4.
Zurück zum Zitat Galobardes. I (2013) Characterization and control of wet-mix sprayed concrete with accelerators. Ph.D. Thesis Galobardes. I (2013) Characterization and control of wet-mix sprayed concrete with accelerators. Ph.D. Thesis
5.
Zurück zum Zitat Chen L, Li P, Liu G, et al. (2018) Development of cement dust suppression technology during shotcrete in mine of China-A review. J Loss Prev, Process Ind Chen L, Li P, Liu G, et al. (2018) Development of cement dust suppression technology during shotcrete in mine of China-A review. J Loss Prev, Process Ind
6.
Zurück zum Zitat Lukas W, Kusterle W, Pichler W (1995) Innovations in shotcrete technology. Am Soc Civ Eng, New York, NY (United States)MATH Lukas W, Kusterle W, Pichler W (1995) Innovations in shotcrete technology. Am Soc Civ Eng, New York, NY (United States)MATH
7.
Zurück zum Zitat De Belie et al. (2005) Ultrasound monitoring of the influence of different accelerating admixtures and cement types for shotcrete on setting and hardening behavior. Cem Concr Res, 35: 2087–2094 De Belie et al. (2005) Ultrasound monitoring of the influence of different accelerating admixtures and cement types for shotcrete on setting and hardening behavior. Cem Concr Res, 35: 2087–2094
8.
Zurück zum Zitat Prudencio LR Jr, Armelin HS, Helene P (1996) Interaction between accelerating admixtures and Portland cement for shotcrete: The influence of the admixture’s chemical base and the correlation between paste tests and shotcrete performance. ACI Mater J 93(6):619–628 Prudencio LR Jr, Armelin HS, Helene P (1996) Interaction between accelerating admixtures and Portland cement for shotcrete: The influence of the admixture’s chemical base and the correlation between paste tests and shotcrete performance. ACI Mater J 93(6):619–628
10.
Zurück zum Zitat Qi Y, Li S, Li Z et al (2019) Hydration effect of sodium silicate on cement slurry doped with xanthan. Constr Build Mater 223:976–985CrossRefMATH Qi Y, Li S, Li Z et al (2019) Hydration effect of sodium silicate on cement slurry doped with xanthan. Constr Build Mater 223:976–985CrossRefMATH
11.
Zurück zum Zitat Salvador RP, Cavalaro SHP, Cano M et al (2016) Influence of spraying on the early hydration of accelerated cement pastes. Cem Concr Res 88:7–19CrossRef Salvador RP, Cavalaro SHP, Cano M et al (2016) Influence of spraying on the early hydration of accelerated cement pastes. Cem Concr Res 88:7–19CrossRef
12.
Zurück zum Zitat Han J, Wang K, Wang Y, et al. (2016) Study of aluminum sulfate and anhydrite on cement hydration process. Mater Struct. 49(4):1105–1114 Han J, Wang K, Wang Y, et al. (2016) Study of aluminum sulfate and anhydrite on cement hydration process. Mater Struct. 49(4):1105–1114
13.
Zurück zum Zitat Brykov AS, Vasil’ev AS, Mokeev MV (2013) Hydration of portland cement in the presence of aluminum-containing setting accelerators. Russ J Appl Chem, 86(6): 793–801 Brykov AS, Vasil’ev AS, Mokeev MV (2013) Hydration of portland cement in the presence of aluminum-containing setting accelerators. Russ J Appl Chem, 86(6): 793–801
14.
Zurück zum Zitat Paglia C, Wombacher F, Böhni H (2003) The influence of alkali-free and alkaline shotcrete accelerators within cement systems: Influence of the temperature on the sulfate attack mechanisms and damage. Cem Concr Res 33(3):387–395CrossRef Paglia C, Wombacher F, Böhni H (2003) The influence of alkali-free and alkaline shotcrete accelerators within cement systems: Influence of the temperature on the sulfate attack mechanisms and damage. Cem Concr Res 33(3):387–395CrossRef
15.
Zurück zum Zitat Coppola L, Alessandra B, Denny C, Kara P et al (2017) The effect of sodium silicate on the behaviour of shotcretes for tunnel lining. J Sci Res Rep, 14. 1–8 Coppola L, Alessandra B, Denny C, Kara P et al (2017) The effect of sodium silicate on the behaviour of shotcretes for tunnel lining. J Sci Res Rep, 14. 1–8
Metadaten
Titel
Silicate-Based and Alkali-Free Accelerators for Shotcrete Applications: Field Study
verfasst von
Esraa ElSayed
Ahmed Soliman
M. Hesham El Naggar
Copyright-Jahr
2025
DOI
https://doi.org/10.1007/978-3-031-61507-8_13