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Article

Grouting below Subterranean Water: Erosional Stability Test

Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 60200 Brno, Czech Republic
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Author to whom correspondence should be addressed.
Academic Editor: Krzysztof Schabowicz
Materials 2021, 14(9), 2333; https://doi.org/10.3390/ma14092333
Received: 3 February 2021 / Revised: 26 April 2021 / Accepted: 27 April 2021 / Published: 30 April 2021
(This article belongs to the Special Issue Testing of Materials and Elements in Civil Engineering)
The article is focused on the medium-term negative effect of groundwater on the underground grout elements. This is the physical–mechanical effect of groundwater, which is known as erosion. We conduct a laboratory verification of the erosional resistance of grout mixtures. A new test apparatus was designed and developed, since there is no standardized method for testing at present. An erosion stability test of grout mixtures and the technical solutions of the apparatus for the test’s implementation are described. This apparatus was subsequently used for the experimental evaluation of the erosional stability of silicate grout mixtures. Grout mixtures with activated and non-activated bentonite are tested. The stabilizing effect of cellulose relative to erosion stability has been also investigated. The specimens of grout mixtures are exposed to flowing water stress for a certain period of time. The erosional stabilities of the grout mixtures are assessed on the basis of weight loss (WL) as a percentage of initial specimen weight. The lower the grout mixture weight loss, the higher its erosional stability and vice versa. View Full-Text
Keywords: erosional stability; laboratory testing; grout mixtures; groundwater; test apparatus erosional stability; laboratory testing; grout mixtures; groundwater; test apparatus
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MDPI and ACS Style

Boštík, J.; Miča, L.; Terzijski, I.; Džaferagić, M.; Leiter, A. Grouting below Subterranean Water: Erosional Stability Test. Materials 2021, 14, 2333. https://doi.org/10.3390/ma14092333

AMA Style

Boštík J, Miča L, Terzijski I, Džaferagić M, Leiter A. Grouting below Subterranean Water: Erosional Stability Test. Materials. 2021; 14(9):2333. https://doi.org/10.3390/ma14092333

Chicago/Turabian Style

Boštík, Jiří, Lumír Miča, Ivailo Terzijski, Mirnela Džaferagić, and Augustin Leiter. 2021. "Grouting below Subterranean Water: Erosional Stability Test" Materials 14, no. 9: 2333. https://doi.org/10.3390/ma14092333

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