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Advances in Civil Engineering
Volume 2010, Article ID 876852, 10 pages
Research Article

Laboratory Characterization and Influence of Mineralogy and Grading on the Performance of Treated and Untreated Granular Materials Used as Surface Pavements in Unpaved Road

Département de Génie Civil, Université Laval 1065, Avenue de la Médecine, Pavillon Adrien Pouliot, QC, Canada G1V 0A6

Received 16 December 2009; Revised 1 April 2010; Accepted 6 June 2010

Academic Editor: Cumaraswamy Vipulanandan

Copyright © 2010 L. Beaulieu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents the results of a laboratory study on the influence of grading and granular mineralogy sources (granitic gneiss, basalt and limestone) on the performance of treated and untreated granular materials used as surface pavements in unpaved roads. Results of bearing capacity, resilient modulus and compressive strength tests are discussed. Natural brine, calcium chloride, cement and a polymer emulsion treated samples were tested and compared to untreated samples. The combinations of product, mineralogy and grading showing great performance are finally pointed out.