MEASURING THE ELECTRIC RESISTANCE OF AIR DRYING THICK RED PINE AND LARCH TIMBER

Abstract

The objective of this study was to evaluate the moisture profile and drying period of air drying the red pine and Japanese larch timbers with the cross section of 14.0 cm × 14.0cm and16.5 cm × 16.5cmby measuring the electricresistanceofthe wood. The drying curvesdetermined by measuring electricresistanceand by oven-dried method were nearly identical at last drying stage, and had almost same moisture profiles and same drying period after the end of air drying. Therefore, the drying curve determined by measuring electricresistancecan be used to predict the drying period and moisture profile of air drying the red pine and Japanese larch timbers with large cross sections.