Prediction of Maritime Pine Boards Modulus of Elasticity by Means of Sonic Testing on Green Timber
Open Access
- 16 February 2021
- journal article
- research article
- Published by MDPI AG in Applied Sciences
- Vol. 11 (4), 1748
- https://doi.org/10.3390/app11041748
Abstract
Timber buildings are experiencing a rapid diffusion due to their good performance and their sustainability; however, some steps of structural timber production process, such as drying, are energy-intensive and environmentally impactful, and many wood species are also affected by low yield. Therefore, it would be important to determine the quality of the green material, that is, in wet condition, before undergoing the most impactful and expensive production steps. This paper describes a research aimed at quantifying the variation of the dynamic modulus of elasticity MoEdyn, which is commonly used for structural timber mechanical grading, from wet to dry condition in Sardinian maritime pine boards to be used for the production of laminated timber, and to examine the relationship between wet and dry MoEdyn. The MoEdyn was determined from measurements of the velocity of sonic waves propagating through the boards. The results show that the dry MoEdyn can be estimated starting from boards sonic testing in the wet condition, so providing a basis for implementing Sardinian maritime pine pre-grading in order to obtain the reduction of manufacturing costs, the abatement of environmental impact, and the increase of structural grade yield.Funding Information
- Sardegna Ricerche (POR Sardegna FESR 2014/2020 - projects Cluster Top-Down)
This publication has 37 references indexed in Scilit:
- Roundwood pre-grading with longitudinal acoustic waves for production of structural boardsEuropean Journal of Wood and Wood Products, 2013
- Strength Class Prediction of Sardinia Grown Timber by Means of Non Destructive ParametersAdvanced Materials Research, 2013
- Non-destructive grading of green Maritime pine using the vibration methodEuropean Journal of Wood and Wood Products, 2013
- Influence of moisture content of wood on sound velocity and dynamic MOE of natural frequency- and ultrasonic runtime measurementEuropean Journal of Wood and Wood Products, 2010
- An environmental assessment of wood and steel reinforced concrete housing constructionJournal of Affective Disorders, 2007
- Variability in energy and carbon dioxide balances of wood and concrete building materialsJournal of Affective Disorders, 2006
- Moisture content effect on ultrasonic velocity in Goupia glabraMaterials Research, 2005
- Variation of stress wave velocity with MC and temperatureWood Science and Technology, 2002
- Greenhouse gas balances in building construction: wood versus concrete from life-cycle and forest land-use perspectivesEnergy Policy, 2000
- Nondestructive Evaluation of Green Dimension Lumber Using Stress Wave and Transverse Vibration TechniquesPublished by Springer Science and Business Media LLC ,1996