BBAuthors: Tian, H.; Advisor: -; Participants: Wei, C.; Lai, Y.; Chen, P. (2018)
In analyzing the phase transition and water migration processes in multiphase porous systems, it is helpful to properly evaluate the unfrozen capillary water content and adsorptive water content, respectively. In this study, an innovative procedure was developed to determine the total, adsorptive, and capillary water contents in frozen soils based on the nuclear magnetic resonance (NMR) technique. We found a threshold value of the proton spin–spin relaxation time, T2, that separates the unfrozen pore water into two distinct regimes: the adsorptive regime for small T2 values and the capillary regime for large T2 values. We showed that the relationship between adsorptive (or capillary) ... 
