Rammed earth blocks with improved multifunctional performance
Article
Article Title | Rammed earth blocks with improved multifunctional performance |
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ERA Journal ID | 21082 |
Article Category | Article |
Authors | Porter, Hannah (Author), Blake, Joshua (Author), Dhami, Navdeep Kaur (Author) and Mukherjee, Abhijit (Author) |
Journal Title | Cement and Concrete Composites |
Journal Citation | 92, pp. 36-46 |
Number of Pages | 11 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0958-9465 |
1873-393X | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.cemconcomp.2018.04.013 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0958946517309563 |
Abstract | Rammed earth is a traditional construction technology that has proven to be sustainable. This paper explores further improvement of its multifunctional performance by increasing the strength, reducing moisture permeation and increasing the thermal resistance. Surface application of microbial cementation was found to increase the strength by 25%. The water permeability and erosion of the blocks also reduced by 24% and 62% respectively, due to surface application of microbial cementation. The thermal test showed that addition of crumb rubber resulted in a temperature difference of around 30 °C even after 6 h. However, the addition of crumb rubber also reduced the strength. This research demonstrates that significant improvement of overall performance of rammed earth materials can be achieved through various treatments. However, the overall performance requirements are specific to the engineering application and synergistic and antagonistic interactions must be considered to obtain an optimal performance. |
Keywords | Bacteria; Bio cementation; Crumb rubber; Microbial calcite; Rammed earth; Stabilisation; Sustainability |
ANZSRC Field of Research 2020 | 400502. Civil geotechnical engineering |
400505. Construction materials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Curtin University |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7qw3/rammed-earth-blocks-with-improved-multifunctional-performance
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