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Experimental Investigations of Colloidal Silica Grouting in Porous Media |
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| Authors: | Tirupati Bolisetti Stanley Reitsma Ram Balachandar |
| Affiliation: | 1Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Windsor, Windsor ON, Canada N9B 3P4 (corresponding author). E-mail: tirupati@uwindsor.ca 2GeoSource Energy Inc., 6 Santa Fe Ct., Hamilton, ON Canada L9C 5Z7; formerly, Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Windsor, Windsor ON, Canada N9B 3P4. 3Professor, Dept. of Civil and Environmental Engineering, Univ. of Windsor, Windsor ON, Canada N9B 3P4. |
| Abstract: | This paper presents the results of an experimental investigation performed to understand the processes influencing the injection of colloidal silica grout into porous media. Based on the combined analysis of grout injection pressures and the visually observed grout distribution patterns, three major processes, gelation, shear, and viscous fingering, have been identified to occur during grout injection. The results demonstrate the dynamic interplay between grout viscosity variations and the resulting flow instabilities. |
| Keywords: | Chemical grouting Pollution Environmental issues Viscosity Porous media |