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Interactive effects of temperature, moisture content, and decay on the electrical resistance of Populus ussuriensis wood
岳
J
H
Y
黄
L
S
X
DOI:10.1515/hf-2025-0025.png)
Abstract
En 中文
The study sought to examine the response of the logarithm of electrical resistance (logR) of Populus ussuriensis wood to temperature fluctuations ranging from -20 to 20 degrees C and moisture content variations between 0 and over 100 %. Resistance tests were performed on 48 healthy and 72 decayed samples via a digital bridge. Studies revealed that temperatures dropping below the freezing point markedly affect the logR value of healthy wood, exhibiting an abrupt shift in the -5 to 0 degrees C spectrum. The logR of healthy wood was more significantly affected by the moisture content below the fiber saturation point (FSP). A comparison of the logR of decayed samples with that of healthy wood revealed a similar trend with the changes of temperature and moisture content. At the same temperature, the logR of healthy wood was a slightly higher than that of the decayed samples. The logR of healthy wood exhibited a slightly higher than that of decayed samples at same moisture content. The multivariate linear regression models established between moisture content, temperature, mass loss rate and logR when the mass loss rate (Es) was <= 10 % demonstrated a satisfactory fit, with coefficients of determination (R2) exceeding 0.7.
Keywords:
decay wood
wood nondestructive testing
wood electrical resistance
temperature
moisture content
Journal
H
IF:
1.6
Papers:
37
Citations:
4.6K
