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Reducing Soil Permeability Using Bacteria-Produced Biopolymer

التفاصيل البيبلوغرافية
العنوان: Reducing Soil Permeability Using Bacteria-Produced Biopolymer
المؤلفون: Amanda Mendonça, Paula V. Morais, Ana Cecília Pires, Ana Paula Chung, Paulo J. Venda Oliveira
المصدر: Applied Sciences, Vol 11, Iss 16, p 7278 (2021)
بيانات النشر: MDPI AG, 2021.
سنة النشر: 2021
المجموعة: LCC:Technology
LCC:Engineering (General). Civil engineering (General)
LCC:Biology (General)
LCC:Physics
LCC:Chemistry
مصطلحات موضوعية: biopolymer, soil stabilisation xanthan gum, sandy soil, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
الوصف: The building of civil engineering structures on some soils requires their stabilisation. Although Portland cement is the most used substance to stabilise soils, it is associated with a lot of environmental concerns. Therefore, it is very pertinent to study more sustainable alternative methodologies to replace the use of cement. Thus, this work analyses the ability of the more sustainable xanthan-like biopolymer, produced by Stenotrophomonas maltophilia Faro439 strain (LabXLG), to reduce the permeability of a sandy soil. Additionally, the effectiveness of this LabXLG is compared with the use of a commercial xanthan gum (XG) and cement for various hydraulic gradients and curing times. The results show that a treatment with either type of XG can be used to replace the cement over the short term (curing time less than 14 days), although a greater level of effectiveness is obtained with the use of the commercial XG, due to its higher level of purity. The soil treatment with LabXLG creates a network of fibres that link the soil particles, while the commercial XG fills the voids with a homogeneous paste.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2076-3417
Relation: https://www.mdpi.com/2076-3417/11/16/7278; https://doaj.org/toc/2076-3417
DOI: 10.3390/app11167278
URL الوصول: https://doaj.org/article/8b3d695692d949a0a44fd9d51f19560c
رقم الأكسشن: edsdoj.8b3d695692d949a0a44fd9d51f19560c
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20763417
DOI:10.3390/app11167278