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Development of Ultrasonic Pulse Velocity-Based Multi-Stage Model and Field Manual for Early Frost Damage Diagnosis
Abstract:
This study presents a 250 kHz ultrasonic pulse velocity-based two-stage prediction model and a standardized field manual for diagnosing early frost damage in cementitious materials. The first stage predicts compressive strength from UPV and curing age, while the second stage estimates early frost damage depth using the predicted strength. Among several regression algorithms, ensemble models showed the highest predictive accuracy. Based on these results, a site-applicable standard operating procedure was developed, defining sampling rules, repeatability criteria, k-correction for indirect paths, and judgment protocols. The proposed model-to-manual framework enables fast, consistent, and reproducible on-site assessment of early frost damage during winter construction.
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127-132
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May 2026
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© 2026 Trans Tech Publications Ltd. All Rights Reserved
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