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Determination of Flow Properties & Microstructure of Cemented & Fibre Amended Toyoura Sand

Colin Schmidt, Tim Newson

In the proceedings of: GeoRegina 2014: 67th Canadian Geotechnical Conference

Session: Engineering Geology and Rock Mechanics

ABSTRACT: This study reports on a joint research initiative between Western University and the University of Fukuoka on cement solidification of sand and silt soil found in the Tokyo Bay region of Japan. This material an environmentally friendly option for reducing the impact of earthquakes and producing very stable construction soils. The technique also includes the addition of short, recycled PVA fibres to reduce shear deformations of geotechnical structures. Toyoura sand and silica flour were used as soil samples, with Ordinary Portland Cement as the solidifying material. This paper focuses primarily on the 1D consolidation and flow properties of these soil mixes, and links their behavior to the microstructure observed in CT and SEM scans.

RÉSUMÉ: Cette étude rend compte d'une initiative de recherche conjointe entre l'Université Western et l'Université de Fukuoka sur le ciment solidification du sable et de terre de limon trouvé dans la région de la baie de Tokyo au Japon. Ce matériau une option écologique pour réduire l'impact des tremblements de terre et la production de sols de construction très stables. La technique comprend aussi l'ajout de fibres courtes de PVA recyclés afin de réduire les déformations de cisaillement des structures géotechniques. Toyoura sable et farine de silice ont été utilisés comme échantillons de sol, avec du ciment Portland ordinaire comme le matériau de solidification. Ce document se concentre principalement sur la consolidation et les propriétés d'écoulement 1D de ces mélanges de terre, et relie leur comportement à la microstructure observée en CT et SEM scans.

Please include this code when submitting a data update: GEO2014_478

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Cite this article:
Colin Schmidt; Tim Newson (2014) Determination of Flow Properties & Microstructure of Cemented & Fibre Amended Toyoura Sand in GEO2014. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GeoRegina14Paper478, author = Colin Schmidt; Tim Newson,
title = Determination of Flow Properties & Microstructure of Cemented & Fibre Amended Toyoura Sand,
year = 2014
}