HYPROP-FIT to Model Rock Water Retention Curves Estimated by Different Methods

The water retention curve, which relates the matric potential, ?, to content, ?, is essential describe flow processes in unsaturated zone and provides useful information for environmental engineering applications. There are few studies devoted measuring rock curves due rock’s tightness, makes it more technically difficult use specific methods. In this study, we tested four different methods measure of two lithotypes carbonate porous rocks with aim find most effective be applied samples. Suction table, evaporation, Quasi-Steady Centrifuge, WP4-T dewpoint potentiameter have been applied. Centrifuge method proved only one capable determining entire content range capturing bimodality media respect other measured data were fitted HYPROP-FIT software that allows us accurately WRCs obtain critical parameters numerical simulation transport through vadose zone, plays a key role various issues.