Over the last decades, sea surface temperature (SST) reconstructions based on the Mg/Ca of foraminiferal calcite have frequently been used in combination with the δ18O signal from the same material, to provide estimates of δ18O of the water (δ18Ow), a proxy for global ice volume and sea surface salinity (SSS). However, because of error propagation ...
Previous studies stated that, with increasing salinity, the decreased liquid limit for expansive soils was attributed to the shrinkage of diffuse double layer, while the increased liquid limit for non-expansive soils was explained by the growing particle flocculation. These two mechanisms seem to be controversial and it is difficult to understand h...
In practice, the soils in shallow depth are usually subjected to the effect of wetting-drying cycles, leading to water content variations. As water content decreases, the dissolved salt starts to precipitate or crystallize, due to the saturation of salt in soil pore water. In reality, only dissolved salt has a significant effect on the thermo-hydro...
Previous studies stated that, with increasing salinity, the decreased liquid limit for expansive soils was attributed to the shrinkage of diffuse double layer, while the increased liquid limit for non-expansive soils was explained by the growing particle flocculation. These two mechanisms seem to be controversial and it is difficult to understand h...
To better understand the salinity effect on the compaction behaviour of soil, standard Proctor compactiontest was conducted on soil samples with different salinities. Matric suction and small-strain shearmodulus,Gmax, were determined and pore size distribution was also investigated on samples staticallycompacted at different water contents. Results...
International audience
International audience
International audience
Dans le cadre de la construction de digues, le traitement à la chaux permet d'améliorer les performances des sols argileux en place pour éviter leur mise en décharge, et de réduire ainsi le coût économique et écologique du transport de matériaux d'apport de plus grande qualité. Des études antérieures ont montré que le traitement à la chaux augmente...
