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Experimental investigations of colloidal silica grouting in porous media / Tirupati Bolisetti in Journal of geotechnical and geoenvironmental engineering, Vol. 135 N° 5 (Mai 2009) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 135 N° 5 (Mai 2009) . - pp. 697–700 Titre : Experimental investigations of colloidal silica grouting in porous media Type de document : texte imprimé Auteurs : Tirupati Bolisetti, Auteur ; Stanley Reitsma, Auteur ; Ram Balachandar, Auteur Année de publication : 2009 Article en page(s) : pp. 697–700 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Chemical  grouting  Pollution  Environmental  issues  Viscosity  Porous  media Résumé : 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. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000007 [article] Experimental investigations of colloidal silica grouting in porous media [texte imprimé] / Tirupati Bolisetti, Auteur ; Stanley Reitsma, Auteur ; Ram Balachandar, Auteur . - 2009 . - pp. 697–700. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 135 N° 5 (Mai 2009) . - pp. 697–700 Mots-clés : Chemical  grouting  Pollution  Environmental  issues  Viscosity  Porous  media Résumé : 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. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000007