Controlled assessment compares non-destructive stiffness indicators in reclaimed timber, highlighting their complementary nature.
Key Points
This research aims to evaluate the effectiveness of various non-destructive indicators for characterizing the mechanical performance of reclaimed Norway spruce timber.
Controlled comparative assessment of non-destructive tests including visual assessment and dynamic excitation on 56 reclaimed beams.
CT-derived indicators were analyzed for their ability to predict bending stiffness variations.
Mechanical reference tests included global and zone-wise flatwise bending tests.
Dynamic excitation emerged as the most reliable predictor for global bending stiffness.
CT-derived indicators showed predictive capability similar to established non-destructive methods.
Visual assessment had limited effectiveness in differentiating mechanical properties in the homogeneous material.