The durability, chemical and mechanical properties of 40 years old black locust posts
Year: 2025
Type: article
Abstract: This study investigated the performance of 40-year-old black locust ( Robinia pseudoacacia ) posts, previously employed in a vineyard. Wood from these posts was compared with wood from recently harvested wood to assess their potential for reuse. Visual inspection, hyperspectral imaging, chemical analysis and laboratory tests were utilised to evaluate decay, density, mechanical properties and extractive content. The older posts exhibited superior mechanical properties compared to the newly harvested wood. The older posts noted a higher density, indicating their superior quality. The heartwood of old black locust posts contained more extractives and phenolic compounds than the recently harvested wood. Minimal decay was revealed, classifying the wood into durability classes 1 or 2. No difference was observed in the inherent durability between the older and recent wood. The findings of this research demonstrate that 40-year-old black locust posts maintain exceptional durability and mechanical properties, rendering them suitable for reuse in outdoor applications.
Authors: Boštjan Lesar, Viljem Vek, Jernej Malik, Jaka Levanič, Eli Keržič, Miha Humar
Institution: University of Ljubljana
Language: English
Subfield: Building and Construction
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,660
OpenAlex ID: W4413580866