Kiln-Drying Aspen Studs

Aspen studs which did not contain wetwood were success fully dried to an average MC of 15 percent using either a conventional or high-temperature schedule. However, the drying behavior of studs containing wetwood was sufficiently different from that of normal studs that none of the drying systems used enabled satisfactory drying of this material. For studs not containing wetwood, the high-temperature schedule reduced drying time by about 60 percent compared to conventional drying. Both compression treatment and incising appeared to reduce the drying time with the conventional schedule, but produced no reduction at high temperature. Both mechanical pretreatments produced some reduction in warp. Compression treatment produced a slight reduction in MOE but no reduction in MOR, whereas incising caused reduction in both MOE and MOR.

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