MATEC Web Conf.
Volume 163, 2018MATBUD’2018 – 8th Scientific-Technical Conference on Material Problems in Civil Engineering
|Number of page(s)||8|
|Section||Geopolymers and Soil-Cement Materials|
|Published online||15 June 2018|
Toward a better understanding of the effects of cement treatment on microstructural and hydraulic properties of compacted soils
Institut de Recherche en Génie Civil et Mécanique (GeM), UMR-CNRS 6183, Université de Nantes (IUT de Saint-Nazaire), 58, Rue Michel Ange, 44606, Saint-Nazaire, France
2 IFSTTAR, Institut Français des Sciences et des Technologies des Transports, de l’Aménagement et des Réseaux, CS 4 Route de Bouaye, 44344, Bouguenais, Cedex France
* Corresponding author: firstname.lastname@example.org
This study deals with the problem of the experimental characterization of cement-treated compacted soils in terms of microstructural and hydraulic properties. Some tests are conducted on two different types of soil: silty sand and clay as fine soils and gravelous sand and alterite as granular soil. Some samples are mixed with 5% of cement and compacted at different levels (i.e., 85%, 95%, 100% and 105% of the maximum dry density, respectively, as achieved using the standard compaction method). The results of the mercury intrusion porosimetry (MIP) tests performed on these cement-treated soils reveal significant changes as regards macropores due to the combined effects of treatment and compaction. Consequently, a decrease in the permeability is clearly observed for all the tested soils when the degree of compaction increases. This decrease is significantly greater in fine soils, which are more sensitive to compaction effects than granular soils.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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