| Issue |
E3S Web Conf.
Volume 92, 2019
7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
|
|
|---|---|---|
| Article Number | 11003 | |
| Number of page(s) | 5 | |
| Section | Treated Geomaterials: Chemical, Microbial, Electrokinetic | |
| DOI | https://doi.org/10.1051/e3sconf/20199211003 | |
| Published online | 25 June 2019 | |
Multi-scale analysis on soil improved by alkali activated binders
1
Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Italy
2
Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, France
3
IFSTTAR, Institut Français des Sciences et des Technologies des Transports, de l'Aménagement et des Réseaux, France
* Corresponding author: e.vitale@unicas.it
In the present paper, the use of alkali activated binders to improve engineering properties of clayey soils is presented as an alternative to traditional binders such as lime or cement. An alkali-activated fly ash and its chemo-physical evolution has been monitored at increasing curing times by means of X-Ray Diffraction and Scanning Electron Microscopy. Alkali-activated binder has been mixed with soil for evaluating the improvement of its mechanical behaviour. One-dimensional compression tests on treated samples have been performed with particular reference to effects induced by binder content and curing time. Test results showed a high initial reactivity of the alkali activated systems promoting formation of new mineralogical phases responsible of the mechanical improvement of the treated soil.
© The Authors, published by EDP Sciences, 2019
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.
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