Materials and Construction
VOLTAGE FLUCTUATIONS DUE TO CRACKS IN CEMENT PASTE CAUSED BY CYCLIC LOADING
2025 Volume 31 Issue 77 Pages 30-35
Details
2025 Volume 31 Issue 77 Pages 30-35
With Japan’s infrastructure aging, non-destructive diagnosis of RC structures is crucial. This study investigates the impact of cracks within cement paste on voltage fluctuation. Cement paste specimens with/without stone undergo cyclic loading with voltage and Digital Image Correlation measurements to clarify the correlation with crack initiation or strain change. Results reveal a correlation between voltage and strain, with distinct periodicity in specimens with each stone shape. The findings indicate characteristic voltage patterns when visible cracks form, though the correlation with DIC-measured displacement was unclear. Understanding voltage variations offers a potential method for assessing crack conditions, which is vital for infrastructure maintenance.
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