دورية أكاديمية
Reducing Soil Permeability Using Bacteria-Produced Biopolymer
العنوان: | Reducing Soil Permeability Using Bacteria-Produced Biopolymer |
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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 |
تدمد: | 20763417 |
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DOI: | 10.3390/app11167278 |