Variation of larch wood property indexes based on nondestructive testing data

Author:

Cheng Liting1,Dai Jian1,Yang Zhiguo2,Qian Wei1,Wang Wei1,Wang Ziyi1,Gao Zhongwei1

Affiliation:

1. Beijing University of Technology

2. China University of Petroleum (Beijing)

Abstract

To quickly evaluate the material properties of ancient wooden structure members on site, the larch species of northeastern China was used as the research object, and the nondestructive testing method of the stress wave and the micro-drill resistance meter were used to measure it. The variation laws of the larch wood’s cross and longitudinal property indexes were determined. According to the variation law of material property indexes, the detection divisions under the nondestructive testing technology of stress wave and micro-drill resistance instruments were divided, which provides a basis for improving the accuracy of on-site nondestructive testing. From the comparison of shade and light side data, it was found that there was little difference in material properties indexes. According to the change trend of larch wood with density, the pith, juvenile wood, mature wood, and overmature wood were divided, which provided a reference value for the study of wood growth laws.

Publisher

BioResources

Subject

Waste Management and Disposal,Bioengineering,Environmental Engineering

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