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17 April 2013 Monitoring ageing of alkali resistant glass fiber reinforced cement (GRC) using guided ultrasonic waves
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Abstract
Glass fiber reinforced cement (GRC) is a Portland cement based composite with alkali resistant (AR) glass fibers. The main drawback of this material is the ageing of the reinforcing fibers with time and especially in presence of humidity in the environment. Until now only destructive methods have been used to evaluate the durability of GRC. In this study ultrasonic guided wave inspection of plate shaped specimens has been carried out. The results obtained here show that acoustic signatures are capable of discerning ageing in GRC. Therefore, the ultrasonic guided wave based inspection technique is a promising method for the nondestructive evaluation of the durability of the GRC.
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J. N. Eiras, U. Amjad, E. Mahmoudabadi, J. Payá, M. Bonilla, and T. Kundu "Monitoring ageing of alkali resistant glass fiber reinforced cement (GRC) using guided ultrasonic waves", Proc. SPIE 8695, Health Monitoring of Structural and Biological Systems 2013, 86950Q (17 April 2013); https://doi.org/10.1117/12.2008984
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