Using microwave near-field reflection measurements as a non-destructive test to determine water penetration depth of concrete
Source abstract
Abstract
A non-destructive version of a standard test for concrete permeability has been demonstrated. The method is based on water penetration depth estimation from near-field microwave measurements using an open-ended rectangular waveguide. In particular, water penetration is determined from the differential measurement of reflection coefficient in the S-band before and after injection of water under pressure. Experimental results show a good correlation between the standard destructive test and the new method. Microwave measurements simplify the standard test avoiding the need of drilling out a sample from the structure and thus reducing both the cost and time needed in the analysis. & 2015 Elsevier Ltd. All rights reserved.
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Research context
OpenAlex topics: Microwave and Dielectric Measurement Techniques · Microwave Engineering and Waveguides · Acoustic Wave Resonator Technologies
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References (41)
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