PORE VOLUME DISTRIBUTION AND CURVE OF WATER CONTENT VERSUS SUCTION OF POROUS BODY: 2. THE BOUNDARY WESTTING CURVE

The boundary wetting curve of water content versus suction is derived by using the effective pore volume distribution which is obtained by combination of probability theory with a pore model that was proposed in a previous report (Nakano 1976). The theoretical curve is compared to experimental data with good agreement for three samples. But, when we draw the theoretical boundary wetting curve by using the same values of parameters λ, ν, and α as those applied to the boundary drying curve, we have to use a function which supplements the relationship between suction and pore radius. This function is decided by measurement and is shown in this report.