Pinus rigida x taeda and Liriodendron tulipifera have been planted in this country for about 20 years. They are known as a relatively fast-grown and useful species. The physical properties such as green moisture contents, specific gravities and dimensional shrinkages were examined with natively grown timbers. The kiln-dry schedules were developed with 30mm thick boards by using an oven-fast-drying method. In both species the green MC s of sapwoods were higher than those of heartwoods, but their discrepancies were small. The green specific gravities of Pinus rigida X taeda and Liriodendron tulipifera were 0.48 and 0.41-0.42, respectively. The developed kiln-dry schedules were proven to minimize drying defects for the boards of 30mm thickness and various width.
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
5. 참고문헌