dc.contributor.author |
Ramdas, Veshara M
|
|
dc.contributor.author |
Mandree, Prisha
|
|
dc.contributor.author |
Mgangira, Martin B
|
|
dc.contributor.author |
Mukaratirwa, S
|
|
dc.contributor.author |
Lalloo, Rajesh
|
|
dc.contributor.author |
Ramchuran, Santosh O
|
|
dc.date.accessioned |
2021-04-23T15:39:30Z |
|
dc.date.available |
2021-04-23T15:39:30Z |
|
dc.date.issued |
2021-03 |
|
dc.identifier.citation |
Ramdas, V.M., Mandree, P., Mgangira, M.B., Mukaratirwa, S., Lalloo, R. & Ramchuran, S.O. 2021. Review of current and future bio-based stabilisation products (enzymatic and polymeric) for road construction materials (article). <i>Transportation Geotechnics, 27.</i> http://hdl.handle.net/10204/11998 |
en_ZA |
dc.identifier.issn |
2214-3912 |
|
dc.identifier.uri |
https://doi.org/10.1016/j.trgeo.2020.100458
|
|
dc.identifier.uri |
http://hdl.handle.net/10204/11998
|
|
dc.description.abstract |
In situ soil modification is required in order to improve the primary engineering properties of the material to meet a road construction standard. Bio-stabilised soil is an environmentally friendly, cost-effective alternative to imported granular fills, concrete, costly hauling of materials or export to a landfill. In-service soil performance and required maintenance is highly dependent on methods of stabilisation, ranging from expensive mechanical stabilisation to chemical processes. As such, many alternative materials originating from bio-based sources are being explored as potential stabilising additives to improve weak subgrade soils (i.e., dispersive, erodible and collapsible soil, and soft or expansive clays). Some key solutions include the use of bio-derived enzymes, microbes, and polymeric additives to avert road failure caused by water penetration and/or erosion. The role of microbial substrate specialisation has been largely unexplored, since the level of research done on alternative stabilisers consists mostly of small ad hoc studies. In addition, research has focused on a reduction in permeability and an increase in compressive strength using enzymes and polymers, however, the complexity of these products and their implementation for a wide range of soil types and structural applications remain limited. Currently there is a need for more supporting research methodologies and systematic approaches on the implementation of bio-based materials for infrastructure development. This also includes the simplification of bio-based products for potential construction applications. This review provides (a) an overview of soil stabilisation techniques, (b) the primary challenges that lay ahead for future research in bio-based stabilisation products application in the road sector and (c) innovations to address the challenges of using modernised techniques in the road construction industry (i.e., weak subgrade and the required maintenance thereof, as well as the development of potential bio-based additives for unpaved road construction application). |
en_US |
dc.format |
Fulltext |
en_US |
dc.language.iso |
en |
en_US |
dc.relation.uri |
https://www.sciencedirect.com/science/article/pii/S2214391220303469 |
en_US |
dc.source |
Transportation Geotechnics, 27 |
en_US |
dc.subject |
Bacillus species |
en_US |
dc.subject |
Biopolymers |
en_US |
dc.subject |
Soil stabiliser |
en_US |
dc.subject |
Road Construction |
en_US |
dc.subject |
Road Construction |
en_US |
dc.subject |
Soil stabilisation |
en_US |
dc.subject |
Bio-additives |
en_US |
dc.title |
Review of current and future bio-based stabilisation products (enzymatic and polymeric) for road construction materials (article) |
en_US |
dc.type |
Article |
en_US |
dc.description.pages |
54 |
en_US |
dc.description.note |
© 2020 Elsevier Ltd. All rights reserved. Due to copyright restrictions, the attached PDF file contains the preprint version of the published item. For access to the published articel, please consult the publisher's website:https://www.sciencedirect.com/science/article/pii/S2214391220303469 |
en_US |
dc.description.cluster |
Chemicals |
en_US |
dc.description.cluster |
Smart Mobility |
|
dc.description.impactarea |
BT: Processing |
en_US |
dc.description.impactarea |
Pavement Design and Construction |
|
dc.identifier.apacitation |
Ramdas, V. M., Mandree, P., Mgangira, M. B., Mukaratirwa, S., Lalloo, R., & Ramchuran, S. O. (2021). Review of current and future bio-based stabilisation products (enzymatic and polymeric) for road construction materials (article). <i>Transportation Geotechnics, 27</i>, http://hdl.handle.net/10204/11998 |
en_ZA |
dc.identifier.chicagocitation |
Ramdas, Veshara M, Prisha Mandree, Martin B Mgangira, S Mukaratirwa, Rajesh Lalloo, and Santosh O Ramchuran "Review of current and future bio-based stabilisation products (enzymatic and polymeric) for road construction materials (article)." <i>Transportation Geotechnics, 27</i> (2021) http://hdl.handle.net/10204/11998 |
en_ZA |
dc.identifier.vancouvercitation |
Ramdas VM, Mandree P, Mgangira MB, Mukaratirwa S, Lalloo R, Ramchuran SO. Review of current and future bio-based stabilisation products (enzymatic and polymeric) for road construction materials (article). Transportation Geotechnics, 27. 2021; http://hdl.handle.net/10204/11998. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Ramdas, Veshara M
AU - Mandree, Prisha
AU - Mgangira, Martin B
AU - Mukaratirwa, S
AU - Lalloo, Rajesh
AU - Ramchuran, Santosh O
AB - In situ soil modification is required in order to improve the primary engineering properties of the material to meet a road construction standard. Bio-stabilised soil is an environmentally friendly, cost-effective alternative to imported granular fills, concrete, costly hauling of materials or export to a landfill. In-service soil performance and required maintenance is highly dependent on methods of stabilisation, ranging from expensive mechanical stabilisation to chemical processes. As such, many alternative materials originating from bio-based sources are being explored as potential stabilising additives to improve weak subgrade soils (i.e., dispersive, erodible and collapsible soil, and soft or expansive clays). Some key solutions include the use of bio-derived enzymes, microbes, and polymeric additives to avert road failure caused by water penetration and/or erosion. The role of microbial substrate specialisation has been largely unexplored, since the level of research done on alternative stabilisers consists mostly of small ad hoc studies. In addition, research has focused on a reduction in permeability and an increase in compressive strength using enzymes and polymers, however, the complexity of these products and their implementation for a wide range of soil types and structural applications remain limited. Currently there is a need for more supporting research methodologies and systematic approaches on the implementation of bio-based materials for infrastructure development. This also includes the simplification of bio-based products for potential construction applications. This review provides (a) an overview of soil stabilisation techniques, (b) the primary challenges that lay ahead for future research in bio-based stabilisation products application in the road sector and (c) innovations to address the challenges of using modernised techniques in the road construction industry (i.e., weak subgrade and the required maintenance thereof, as well as the development of potential bio-based additives for unpaved road construction application).
DA - 2021-03
DB - ResearchSpace
DP - CSIR
J1 - Transportation Geotechnics, 27
KW - Bacillus species
KW - Biopolymers
KW - Soil stabiliser
KW - Road Construction
KW - Road Construction
KW - Soil stabilisation
KW - Bio-additives
LK - https://researchspace.csir.co.za
PY - 2021
SM - 2214-3912
T1 - Review of current and future bio-based stabilisation products (enzymatic and polymeric) for road construction materials (article)
TI - Review of current and future bio-based stabilisation products (enzymatic and polymeric) for road construction materials (article)
UR - http://hdl.handle.net/10204/11998
ER - |
en_ZA |
dc.identifier.worklist |
24464 |
en_US |