Preliminary Evaluation of the Effect of Curing Time on the Unconfined Compressive Strength and Microstructure of Colloidal Silica Grouted Soil
Publication: Geo-Congress 2024
ABSTRACT
Colloidal silica (CS) is a non-toxic soil stabilization solution with proven effectiveness against liquefaction in both laboratory and field tests. Specifically, CS treatment has been shown to increase unconfined compressive strength with time. However, limited knowledge exists regarding the performance of CS-treated soils after 1,000 days post treatment. This paper presents UCS test data for CS-treated sand samples of varying ages (freshly made and preserved since 2009). The fresh samples were prepared to replicate 2009 sample conditions by mixing poorly graded concrete sand, colloidal silica (5%–9% concentration), and NaCl accelerator (0.3N–0.45N). Additionally, scanning electron microscopy tests were performed to support result interpretation and monitor microstructural changes over time. The preliminary results from this study comparing freshly prepared versus the oldest known CS-treated sand specimens advances understanding of colloidal silica microstructure evolution and prediction of unconfined compressive strength over time.
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REFERENCES
Cinar, A., and Maerz, N. (2020). “An Experimental Study of Chemical Grouting Materials for Optimum Mechanical Performance.” Proc., Geo-Congress 2020, ASCE, Minneapolis, MN, 716–726.
Fraccica, A., Spagnoli, G., Romero, E., Arroyo, M., and Gómez, R. (2022). “Permeation grouting of silt-sand mixtures.” Transportation Geotechnics. 35: 100800. 10.1016/ j.trgeo.2022.100800.
Gallagher, P. M. (2000). Passive site remediation for mitigation of liquefaction risk. Blacksburg, VA: Virginia Tech.
Gallagher, P. M., Conlee, C. T., and Rollins, K. M. (2007a). “Full-Scale Field Testing of Colloidal Silica Grouting for Mitigation of Liquefaction Risk.” J. Geotech. Geoenviron. Eng. 133 (2): 186–196. https://doi.org/10.1061/(ASCE)1090-0241(2007)133:2(186).
Gallagher, P. M., and Mitchell, J. K. (2002). “Influence of colloidal silica grout on liquefaction potential and cyclic undrained behavior of loose sand.” Soil Dynamics and Earthquake Engineering. 22 (9–12): 1017–1026. https://doi.org/10.1016/S0267-7261(02)00126-4.
Gallagher, P. M., Pamuk, A., and Abdoun, T. (2007b). “Stabilization of Liquefiable Soils Using Colloidal Silica Grout.” J. Mater. Civ. Eng. 19 (1): 33–40. https://doi.org/10.1061/(ASCE)0899-1561(2007)19:1(33).
Hamderi, M. (2010). Pilot-scale modeling of colloidal silica delivery to liquefiable sands. Philadelphia, Pennsylvania: Drexel University.
Hamderi, M., and Gallagher, P. M. (2015). “Pilot-scale modeling of colloidal silica delivery to liquefiable sands.” Soils and Foundations. 55 (1): 143–153. https://doi.org/10.1016/j.sandf.2014.12.011.
Huang, Y., and Wen, Z. (2015). “Recent developments of soil improvement methods for seismic liquefaction mitigation.” Nat Hazards. 76 (3): 1927–1938. https://doi.org/10.1007/s11069-014-1558-9.
Iler, R. K. (1979). The chemistry of silica: Solubility, polymerization, colloid and surface properties and biochemistry of silica. New York, NY: John Wiley and Sons Inc.
Krishnan, J., and Shukla, S. (2020). “Mechanical Behaviour of Sand Treated with Colloidal Silica.” Geotechnical Characterization and Modelling, 467–479.
Krishnan, J., and Shukla, S. (2021). “The Utilisation of Colloidal Silica Grout in Soil Stabilisation and Liquefaction Mitigation: A State of the Art Review.” Geotech Geol Eng. 39 (4): 2681–2706. https://doi.org/10.1007/s10706-020-01651-5.
Liao, H. J., Huang, C. C., and Chao, B. S. (2003). “Liquefaction resistance of a colloid silica grouted sand.” Grouting and ground treatment, 1305–1313.
Miwa, M., and Yonekura, R. (1993). “Fundamental properties of sodium silicate based grout.” Proc., Southeast Asian Geotechnical Conference (SEAGC), Singapore, 44–49.
Moradi, G., and Seyedi, S. (2015). “Effect of Sampling Method on Strength of Stabilized Silty Sands with Colloidal Nano Silica.” J Civ Eng Res. 5 (6): 129–135. https://doi.org/10.5923/j.jce. 20150506.01.
Moridis, G., Apps, J., Persoff, P., Myer, L., Muller, S., Pruess, K., and Yen, P. (1996). A field test of a waste containment technology using a new generation of injectable barrier liquids. Lawrence Berkeley National Lab.
Pedrotti, M., Wong, C., El Mountassir, G., Renshaw, J. C., and Lunn, R. J. (2020). “Desiccation behaviour of colloidal silica grouted sand: A new material for the creation of near surface hydraulic barriers.” Engineering Geology. 270: 105579. https://doi.org/10.1016/j.enggeo.2020.105579.
Persoff, P., Apps, J., Moridis, G., and Whang, J. M. (1999). “Effect of Dilution and Contaminants on Sand Grouted with Colloidal Silica.” J. Geotech. Geoenviron. Eng. 125 (6): 461–469. https://doi.org/10.1061/(ASCE)1090-0241(1999)125:6(461).
Persoff, P., Finsterle, S., Moridis, G. J., Apps, J., Pruess, K., and Muller, S. J. (1995). Injectable barriers for waste isolation. Lawrence Berkeley Lab.
Spagnoli, G., Chittenden, N., Grassi, D., and Cortez, J. (2022). Case Histories on The Applications of Colloidal Silica for Permeation Grouting. Berlin, Germany.
Spagnoli, G., and Collico, S. (2023). “Multivariate analysis of a grouted sand with colloidal silica at different dilution stages.” Transportation Geotechnics. 40: 100987. https://doi.org/10.1016/j.trgeo.2023.100987.
Spagnoli, G., and Tintelnot, G. (2022). “Mechanical Properties of a Sand Injected with a Colloidal Silica Binder with Different Dilution Grades.” Int. J. of Geosynth. and Ground Eng. 8 (4): 47. https://doi.org/10.1007/s40891-022-00391-1.
Sydansk, R. D. (1990). “A newly developed chromium (lll) gel technology.” SPE Reservoir Engineering, 5 (03): 346–352. OnePetro.
Wong, C., Pedrotti, M., El Mountassir, G., and Lunn, R. J. (2018). “A study on the mechanical interaction between soil and colloidal silica gel for ground improvement.” Engineering Geology. 243: 84–100. https://doi.org/10.1016/j.enggeo.2018.06.011.
Zhao, M., Liu, G., Zhang, C., Guo, W., and Luo, Q. (2019). “State-of-the-Art of Colloidal Silica-Based Soil Liquefaction Mitigation: An Emerging Technique for Ground Improvement.” Applied Sciences. 10 (1): 15. https://doi.org/10.3390/app10010015.
Information & Authors
Information
Published In
Geo-Congress 2024
Pages: 298 - 306
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- [Inorganic compounds]
- Chemical processes
- Chemicals
- Chemistry
- Colloids
- Compressive strength
- Construction engineering
- Construction methods
- Environmental engineering
- Geomechanics
- Geotechnical engineering
- Grouting
- Material mechanics
- Material properties
- Materials characterization
- Materials engineering
- Microstructure
- Organic compounds
- Silica
- Soil compression
- Soil dynamics
- Soil grouting
- Soil liquefaction
- Soil mechanics
- Soil properties
- Soil strength
- Strength of materials
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