C.T.S. Beckett
Macrostructural changes in compacted earthen construction materials under loading
Beckett, C.T.S.; Hall, M.R.; Augarde, C.E.
Abstract
There is increasing interest in the use of earthen materials for modern construction. The mechanical behaviour of these materials is strongly controlled by their internal macrostructures. Rammed earth (RE) is one example of these materials, created by in situ compaction of a wet soil mixture. Changes to the material structure occur on loading and during compaction; therefore, the nature of these changes needs to be understood if the effect on the material behaviour can be predicted. Here, the change in the macrostructure of RE on the application of compressive loading is investigated by using X-ray computed tomography and fractal analysis to monitor the changes in loaded RE specimens. The macrostructures of specimens comprising different layer thicknesses are also investigated in order to determine how layer thickness affects the compaction of the material. Results are used to recommend procedures for manufacturing specimens that are representative of the material found in full-scale RE structures.
Citation
Beckett, C., Hall, M., & Augarde, C. (2013). Macrostructural changes in compacted earthen construction materials under loading. Acta Geotechnica, 8(4), 423-438. https://doi.org/10.1007/s11440-012-0203-6
Journal Article Type | Article |
---|---|
Publication Date | Aug 1, 2013 |
Deposit Date | Dec 21, 2012 |
Publicly Available Date | Jan 10, 2016 |
Journal | Acta Geotechnica |
Print ISSN | 1861-1125 |
Electronic ISSN | 1861-1133 |
Publisher | Springer |
Peer Reviewed | Peer Reviewed |
Volume | 8 |
Issue | 4 |
Pages | 423-438 |
DOI | https://doi.org/10.1007/s11440-012-0203-6 |
Keywords | Cracking, Macrostructure, Rammed earth, X-ray computed tomography |
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Copyright Statement
The final publication is available at Springer via http://dx.doi.org/10.1007/s11440-012-0203-6
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