Influence of the Incorporation of Alluvial Sand on the Mechanical Behavior of Marl Soil

Abstract

This study aims to evaluate the mechanical behavior of marl soil by replacing it with alluvial sand at 3, 5, and 10% by weight for a possible application in road geotechnics. After a geotechnical characterization of the materials used, the mixtures were characterized by the Atterberg limits test, the soil compressibility test, and the shear strength test. The results obtained showed that replacing a part of marl soil with alluvial sand had a positive impact on its mechanical behavior, as it improved cohesion and shear strength while significantly reducing compressibility and plasticity. These results confirm the possibility of using alluvial sand as a fine soil reinforcement or stabilization material.

Characterisation of lightweight concrete blocks made from dune sand and wood chips

“…The waste considered in this work is wood chips from carpentry waste. The recovery of dune sand and the reuse of wood chips in the construction sector have been the subject of several research projects in recent years (Bensaada et al, 2023;Silouantonda et al,2023;Jawad et al, 2022;Huijuan et al, 2022;Simon et al, 2022;Ziqiang et al, 2022;Emmanuel et al, 2021;Aidoud et al, 2021;M'Li et al, 2017;Bederina et al, 2010) aimed at their influence on the physicomechanical properties of the concretes and mortars thus obtained. In this sense, our work represents a continuation of this work and aims to extend the use of these materials in the prefabrication of concrete blocks.…”