Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Bogdan BOLBOREA, Cornelia BAERÄ, Aurelian GRUIN, Sorin DAN, Ana-Cristina VASILE
The resurgence of earthen construction highlights the environmental, economic, and aesthetic benefits of natural materials. Non-Destructive Testing (NDT) methods are important for assessing the integrity and performance of earthen structures without physical damage. This article reviews key NDT techniques, including ultrasonic testing, electrical resistivity tomography, nuclear magnetic resonance, time domain reflectometry, infrared thermography, and acoustic emission testing, emphasizing their role in evaluating moisture content, mechanical properties, and thermal performance. Despite their advantages, challenges such as material variability, lack of standardized protocols, and specialized training persist. Future efforts must focus on standardization, advanced technologies, and improved data interpretation to maximize NDT’s potential. By overcoming these obstacles, the construction industry can ensure the structural integrity and sustainability of earthen materials, promote broader acceptance of earthen construction and foster resilient, eco-friendly building solutions.
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