Non-Destructive Testing of Composite Gypsum Material Properties – Long Time Measurement

Abstract:

The paper presents results of long-time investigation of mechanical properties of composite gypsum material using nondestructive technique. The gypsum block was put to the façade of the building for four years. Then it was removed and cut to smaller specimens, which were investigated. The matrix of 6 × 4 specimens of dimensions 40 × 40 × 160 mm were cut from the block after its removal from the façade. After 6 and 9 years, the Young’s moduli and shear moduli of these specimens were determined from the transversal, longitudinal and torsional vibrations using the impulse excitation method.

• Periodical: Applied Mechanics and Materials (Volume 732)
• Pages: 321-324
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.732.321
• Online since: February 2015
• Authors: Tomáš Plachy, Tomáš Svoboda, Jaroslav Topič, Zdeněk Prošek, Václav Nežerka, Pavel Tesárek
• Keywords: Gypsum Composite, Impulse Method, Mechanical Property, Non-Destructive Test

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