Effect of Soil Moisture Evaporation Rate on Dynamic Measurement of Water Retention Curve with High-Capacity Tensiometer

This paper investigates the effect of soil moisture evaporation rate on water retention curve (SWRC) clays obtained using high-capacity tensiometer (HCT) technique and following continuous drying (dynamic) method. SWRC measurements, with without control, were carried out reconstituted London clay specimens 12 performance-improved HCTs recently developed at University Warwick. Furthermore, HCTs' performance in terms maximum attainable suction (smax) measurement duration (tmax) was evaluated. Moreover, suitability a curve-fitting-based model, available literature, for attaining entire (beyond capacity HCTs) The SWRCs tests controlled found to generally exhibit higher given content, hence inducing air-entry values that average 16% than those from control. It also excess 2 MPa, model predictions data exhibited significantly lower content suggesting such fitting correlations should be used caution.