Dr Sravan Muguda Viswanath sravan.muguda-viswanath@durham.ac.uk
Assistant Professor
Cross-linking of biopolymers for stabilising earthen construction materials
Muguda, S.; Hughes, P.N.; Augarde, C.E.; Perlot, C.; Bruno, A.W.; Gallipoli, D.
Authors
Professor Paul Hughes paul.hughes2@durham.ac.uk
Professor
Professor Charles Augarde charles.augarde@durham.ac.uk
Head Of Department
C. Perlot
A.W. Bruno
D. Gallipoli
Abstract
Biopolymers are promising potential soil stabilizers due to their ease of application and stabilization efficacy. Biopolymers are biologically occurring polymers that form hydrogels when added to soil in the presence of water. Hydrogels are three-dimensional polymer networks formed through the interaction of polymer chains with soil particles and pore water. The chemical properties of the biopolymer and external factors (like temperature) affect the physical characteristics of the hydrogels formed. Cross-linking of biopolymer chains with another monomer or biopolymer enables the development of hydrogels with enhanced physical integrity and mechanical properties. Recent studies have shown that the biopolymers, guar and xanthan gums, improve the mechanical and durability properties of soil. As a galactomannan, guar gum naturally forms cross links with xanthan gum, and the study presented here evaluates the impact of this cross-linking on plasticity, shrinkage, strength and durability. Cross-linked specimens with higher guar gum have higher plasticity indices and linear shrinkage; however, when the amount of xanthan gum is increased, these values reduce. Strength tests suggest that cross-linking addresses some of the shortcomings of each biopolymer and improves the overall mechanical behaviour of the soil. The durability performance of cross-linked specimens was found to be comparable with specimens stabilized with individual biopolymers.
Citation
Muguda, S., Hughes, P., Augarde, C., Perlot, C., Bruno, A., & Gallipoli, D. (2022). Cross-linking of biopolymers for stabilising earthen construction materials. Building Research and Information, 50(5), 502-514. https://doi.org/10.1080/09613218.2021.2001304
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 29, 2021 |
Online Publication Date | Nov 16, 2021 |
Publication Date | 2022 |
Deposit Date | Oct 31, 2021 |
Publicly Available Date | Nov 25, 2021 |
Journal | Building Research and Information |
Print ISSN | 0961-3218 |
Electronic ISSN | 1466-4321 |
Publisher | Taylor and Francis Group |
Peer Reviewed | Peer Reviewed |
Volume | 50 |
Issue | 5 |
Pages | 502-514 |
DOI | https://doi.org/10.1080/09613218.2021.2001304 |
Public URL | https://durham-repository.worktribe.com/output/1223846 |
Files
Published Journal Article
(3.4 Mb)
PDF
Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Copyright Statement
© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
You might also like
Soil–Water Retention Curve Prediction for Compacted London Clay Subjected to Moisture Cycles
(2023)
Journal Article
A simple method to determine soil–water retention curves of compacted active clays
(2023)
Journal Article
Effects of fibre additions on the tensile strength and crack behaviour of unsaturated clay
(2022)
Journal Article
Weather-driven deterioration processes affecting the performance of embankment slopes
(2020)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search