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Fall cone test on biopolymer-treated clay
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Cheng, Zhanbo, Nie, Jing, Ding, Haotian and Geng, Xueyu (2020) Fall cone test on biopolymer-treated clay. In: 4th European Conference on Unsaturated Soils (E-UNSAT 2020). Published in: E3S Web Conferences, 195 doi:10.1051/e3sconf/202019503041 ISSN 2267-1242.
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WRAP-Fall-cone-test-biopolymer-treated-clay-2020.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1595Kb) | Preview |
Official URL: https://doi.org/10.1051/e3sconf/202019503041
Abstract
Fall cone tests were conducted to evaluate the consistency variations of clay soils treated with six types of biopolymers, e.g. carrageenan kappa gum (KG), locust bean gum (BG), xanthan gum (XG), agar gum (AG), guar gum (GG) and sodium alginate (SA) at various concentrations (e.g. between 0.1% to 5% biopolymer to soil mass ratio). The dependences of shear viscosity on water content, and undrained shear strength on water content were established. The results indicated that KG and SA increased the liquid limit (LL) of treated soils after the biopolymer content exceeded a certain limit (e.g. 0.5%), BG and GG contributed to a peak point in LL at biopolymer concentration of 1% to 2%, while XG and AG almost did not change the LL at all. The plastic limit (PL) was about 25% to 50% of the LL, leading to a trend of plasticity index (PI) similar to liquid limit. In order to further simplify the testing procedure and get the Atterberg limits for biopolymer-treated soil, one-point method was adopted.
Item Type: | Conference Item (UNSPECIFIED) | ||||||||||||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Clay soils, Soil mechanics, Soils -- Testing, Biopolymers | ||||||||||||||||||
Journal or Publication Title: | E3S Web Conferences | ||||||||||||||||||
ISSN: | 2267-1242 | ||||||||||||||||||
Official Date: | 16 October 2020 | ||||||||||||||||||
Dates: |
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Volume: | 195 | ||||||||||||||||||
Article Number: | 03041 | ||||||||||||||||||
DOI: | 10.1051/e3sconf/202019503041 | ||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||||||||
Copyright Holders: | © The Authors, published by EDP Sciences 2020 | ||||||||||||||||||
Date of first compliant deposit: | 3 March 2021 | ||||||||||||||||||
Date of first compliant Open Access: | 3 March 2021 | ||||||||||||||||||
RIOXX Funder/Project Grant: |
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Title of Event: | 4th European Conference on Unsaturated Soils (E-UNSAT 2020) | ||||||||||||||||||
Type of Event: | Conference |
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