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Application of non-symmetrical drying tests for assessment of drying behaviour of ntholo (Pseudolachnostylis maprounaefolia PAX)
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Materials.
2010 (English)In: Holzforschung, ISSN 0018-3830, Vol. 64, no 3, 363-368 p.Article in journal (Refereed) Published
Abstract [en]

Experiments concerning drying behaviour of ntholo (Pseudolachnostylis maprounaefolia PAX) were conducted to find a suitable drying schedule. Two non-symmetrical drying (NSD) tests were carried out to determine the drying behaviour of ntholo in terms of drying rate and stress behaviour. A tentative drying schedule was selected for comparison of the test results with those of similar tests with other known species. The schedule was tested in a laboratory kiln on 28-mm thick boards. According to both NSD tests and laboratory tests, ntholo dries easily but slowly. The laboratory drying lasted 266 h and achieved standard drying quality characterised by 8.9% moisture content, a moisture gradient of 1.2% and a case-hardening (gap) of 1.2 mm. Twist was the largest deformation with 3.4 mm per 1000 mm on average. The assigned schedule provided standard drying quality and it could be tested further in industrial kilns.

Place, publisher, year, edition, pages
2010. Vol. 64, no 3, 363-368 p.
Keyword [en]
drying quality, drying schedule, moisture content, non-symmetrical drying test
National Category
Wood Science Building Technologies
URN: urn:nbn:se:kth:diva-28286DOI: 10.1515/HF.2010.043ISI: 000276810800012ScopusID: 2-s2.0-77951284654OAI: diva2:387075
QC 20110113Available from: 2011-01-13 Created: 2011-01-12 Last updated: 2011-01-13Bibliographically approved

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