Computers and Concrete

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Laboratory tests for studying the performance of grouted micro-fine cement

  • Aflaki, Esmael (Department of Civil and Environmental Engineering, Amirkabir University of Technology) ;
  • Moodi, Faramarz (Concrete Technology and Durability Research Center, Amirkabir University of Technology)
  • Received : 2015.03.25
  • Accepted : 2017.04.08
  • Published : 2017.08.25
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Abstract

In geological engineering, grouting with Portland cement is a common technique for ground improvement, during which micro-fine cement is applied as a slurry, such that it intrudes into soil voids and decreases soil porosity. To determine the utility and behavior of cements with different Blaine values (index of cement particle fineness) for stabilization of fine sand, non-destructive and destructive tests were employed, such as laser-ray determination of grain size distribution, and sedimentation, permeability, and compressive strength tests. The results of the experimental study demonstrated a suitable mix design for the upper and lower regions of the cement-grading curve that are important for grouting and stabilization. Increasing the fineness of the cement decreased the permeability and increased the compressive strength of grouted sand samples considerably after two weeks. Moreover, relative to finer (higher Blaine value) or coarser (lower Blaine value) cements, cement with a Blaine value of $5,100cm^2/g$ was optimal for void reduction in a grouted soil mass. Overall, study results indicate that cement with an optimum Blaine value can be used to satisfy the designed geotechnical criteria.

Keywords

References

  1. Akbulut, S. and Saglamer, A. (2002), "Estimating the groutability of granular soils: A new approach", Tunn. Undergr. Sp. Tech., 17(4), 371-380. https://doi.org/10.1016/S0886-7798(02)00040-8
  2. ASTM D4219 (2010), Standard Test Method for Unconfined Compressive Strength Index of Chemical-Grouted, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  3. ASTM D4254 (2010), Standard Test Methods for Minimum Index Density and Unit Weight of Soils and Calculation of Relative Density, ASTM International, Pennsylvania, U.S.A.
  4. ASTM D5856 (2010), Standard Test Method for Measurement of Hydraulic Conductivity of Porous Material Using a Rigid-Wall, Compaction-Mold Permeameter, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  5. Dano, C., Hicer, P.Y. and Tailliez, S. (2004), "Engineering properties of grouted sands", J. Geotech. Geoenviron. Eng., 130(3), 328-338. https://doi.org/10.1061/(ASCE)1090-0241(2004)130:3(328)
  6. De Paoli, B., Bosco, B., Granata, R. and Bruce, A. (1992), "Fundamental observations on cement based grouts (2): Microfine cements and the cemill process", Proceedings of the Conference on Grouting, Soil Improvement and Geosynthetics, New Orleans, U.S.A.
  7. Dupla, J.C., Canou, J. and Gouvenot, D. (2004), "An advanced experimental set-up for studying a monodirectional grout injection process", Proceedings of the ICE-Ground Improvement, 8(3), 91-99. https://doi.org/10.1680/grim.2004.8.3.91
  8. Eriksson, M., Friedrich, M. and Vorschulze, C. (2004), "Variations in the rheology and penetrability of cement-based grouts-an experimental study", Cement Concrete Res., 34(7), 1111-1119. https://doi.org/10.1016/j.cemconres.2003.11.023
  9. Henn, R., Davenport, R., Tzobery, S. and Bandimere, S. (2005), "Additional test results for comparison of penetration of grout made with various ultrafine cement products", Proceedings of the Rapid Excavation and Tunneling Conference, Elsevier, Amsterdam, the Netherlands.
  10. Markou, I.N. and Droudakis, A.I. (2013), "Factors affecting engineering properties of microfine cement grouted sands", Geotech. Geol. Eng., 31(4), 1041-1058. https://doi.org/10.1007/s10706-013-9631-9
  11. Matsui, S., Nakazato, Y., Tokoro, T. and Takahashi, N. (1996), "Basic study on grouted sand specimen preparation methods and compressive strength", Proceedings of the Conference on Grouting and Deep Mixing, Tokyo, Balkema, Rotterdam.
  12. Mollamahmutoglu, M. and Yilmaz, Y. (2011), "Engineering properties of medium-to-fine sands injected with microfine cement grout", Mar. Geores. Geotechnol., 29(2), 95-109. https://doi.org/10.1080/1064119X.2010.517715
  13. Mollamahmutoglu, M. (2003), "Treatment of medium-to coarsegrained sands by fine-grained portland cement (FGPC) as an alternative grouting material to silicate-ester grouts", Cement, Concrete Aggreg., 25(1), 1235-1242.
  14. Naudts, A., Landry, E., Hooey, S. and Naudts, W. (2003), "Additives and admixtures in cement-based grouts", Proceedings of the 3rd International Conference, Grouting and Ground Treatment, New Orleans, Louisiana, Geotechnical Special Publication, 1180-1191.
  15. Pantazopoulos, I.A., Markou, I.N. and Christodoulou, D.N. (2012), "Development of microfine cement grouts by pulverizing ordinary cements", Cement Concrete Compos., 34(5), 593-603. https://doi.org/10.1016/j.cemconcomp.2012.01.009
  16. Perret, S., Palardy, D. and Ballivy, G. (2000), "Rheological behavior and setting time of microfine cement-based grouts", ACI Mater. J., 97(4), 472-478.
  17. Rosquoet, F., Alexis, A., Khelidi, A. and Phelipot, A. (2003), "Experimental study of cement grout: Rheological behavior and sedimentation", Cement Concrete Res., 33(5), 713-722. https://doi.org/10.1016/S0008-8846(02)01036-0
  18. Saada, Z. (2003), "Experimental and theoretical study of suspension injection in a granular medium. Application to cement grouts", Ph.D. Dissertation, Ecole des Ponts Paris Tech (ENPC), 201.
  19. Schwarz, L.G. and Chirumalla, M. (2007), "Effect of injection pressure on permeability and strength of microfine cement grouted sand", Proceedings of the ASCE, Grouting for Ground Improvement: Innovative Concepts and Applications, Denver, 168.
  20. Schwarz, L.G. and Krizek, R.J. (1994), "Effect of preparation technique on permeability and strength of cement-grouted sand", Geotech. Test. J., 17, 434-443. https://doi.org/10.1520/GTJ10304J
  21. Shibata, H. (1996), "Study on long-term strength properties of suspension grouts with ultra-fine-grain materials", Proceedings of the Conference on Grouting and Deep Mixing, Tokyo, Balkema, Rotterdam, 1, 71-76.

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