Termografia como técnica não destrutiva no diagnóstico de patologias em peças de madeira

Abstract

This article aims to present the feasibility of the use of thermography as a non - destructive technique to diagnose the pathologies hidden in wood pieces, whether they come from natural manifestations such as cracks, cracks, nodes, cracks, chemical, atmospheric and/or biological (attack of fungi or xylophagous insects) or of anthropic action. Through the use of the active thermography technique, which uses pre-heating of the analyzed surface, experiments were carried out in order to identify the position of natural defects in these pieces. For this, pieces of varied sizes were used, in order to simulate structural pieces present in roofs, beams, etc. The tests were carried out in the laboratory, with temperature and humidity recorded. The results demonstrated the feasibility of using the technique as a tool for the preliminary diagnosis of occult pathologies near the surface of the pieces and maintenance of wood in the initial or advanced stage.