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Some geomechanical properties of a biopolymer treated medium sand

Abstract

Some geomechanical properties of a biopolymer treated medium sand. This paper presents a laboratory assessment of geomechanical properties of sandy soil improved by biopolymer application. Additives (biosubstance) consist of polysaccharides and water. Biosubstance used in the project was xanthan gum, which comes from bacteria Xanthomonas campestris. Triaxial shear compression tests and unconfi ned compression tests were carried out for investigation purposes. Amount of the biopolymer used in the samples was 0.5, 1.0 and 1.5%, on dry weight basis. It is thought that such application, which is a relatively new technique, could be used as a ground improvement and water seepage barrier, required to strengthen and protect some geotechnical works including foundation, underground structures and waste disposals. The results indicate that behavior of the soil changes rapidly based on the amount of biosubstance. Shear strength parameters have shown a signifi cant increase, which gives a chance for further development and possible applications.

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Category:
Articles
Type:
artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Published in:
Annals of Warsaw University of Life Sciences-SGGW Land Reclamation no. 49, edition 3, pages 201 - 212,
ISSN: 1898-8857
Language:
English
Publication year:
2017
Bibliographic description:
Wiszniewski M., Skutnik Z., Biliniak M., Cabalar A.: Some geomechanical properties of a biopolymer treated medium sand// Annals of Warsaw University of Life Sciences-SGGW Land Reclamation. -Vol. 49., iss. 3 (2017), s.201-212
DOI:
Digital Object Identifier (open in new tab) 10.1515/sggw-2017-0016
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