Special Cement Slurries for Strengthening Salt Rock Mass

Every year, the number of exploited mine workings necessary to seal the exploited mines increases in the world. As a result of experiments, technologies are developed that allow slurry to be pumped to fill free rock spaces or to liquidate rock mass discontinuities. The slurry preparation technologie...

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Bibliographic Details
Published inEnergies (Basel) Vol. 15; no. 16; p. 6087
Main Authors Stryczek, Stanisław, Gonet, Andrzej, Kremieniewski, Marcin
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2022
Subjects
Blast furnace practice
brine
Cement
cement slurry
Corrosion
Fly ash
Grain size
Granulation
ground granulated blast furnace slag
Hydration
Hydraulics
Injection
Laboratory tests
Mechanical properties
Mines
Mining
Portland cement
Portland cements
Rheology
Rock masses
Rocks
Salt
Salt mines
salt rock mass
Salts
Sealing
Slag
Slurries
Strengthening
Surface preparation
Poland
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Summary:Every year, the number of exploited mine workings necessary to seal the exploited mines increases in the world. As a result of experiments, technologies are developed that allow slurry to be pumped to fill free rock spaces or to liquidate rock mass discontinuities. The slurry preparation technologies can be divided into: subsurface and surface preparation and injection. Due to the pressure that forces the sealing slurry to move, the following can be distinguished: pressure technologies and technologies of gravity injection. The effectiveness of the work is determined by the correct selection of the technique and technology of the treatment and the selection of the optimal cement slurry recipe. The type of sealing liquid is especially important during works related to filling the exploited mine workings in salt mines. Therefore, this article presents the criteria for the selection of slurry recipes and their technological parameters, used for sealing and strengthening the salt rock mass. For this purpose, laboratory tests are carried out on various formulas of sealing slurries, prepared on the basis of full saturated brine and CEM I 32.5R Portland cement, ground granulated blast furnace slag, fly ash, and silt. The proposed concept for the selection of sealing slurry formulas has been positively verified during the performed works on sealing and strengthening the salt rock mass.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15166087