Abstract:
Studying concrete’s interaction with moisture conditions is crucial for undestanding material degradation and corrosion of embedded steel reinfoircement in structures exposed to atmospheric environments. This work present a comparative assessment of two non-destructive testing (NDT) techniques for moisture evalution: internal moisture measurement with the Moist 210 B (HF SENSOR) and electrical resistivity measurement using the Resipod (PROCEQ). Tests involved mass determination for there concrete compositions (with and without a carbonated surface layer) in a climate chamber with ambient relative humidity (RH) levelsof 90% and 70% as well as under satured and dry conditions. Results showed a strong correlation between theNDT methods and confirmed that concrete composition and carbonation significantly influence material behavior under RH conditions.
Referência:
NASCIMENTO, Lucas C. ARAUJO, Adriana de; QUARCIONI, Valdecir Angelo. Investigation of concrete moisture using no-destructive methods across different compositions and exposure conditions. In: INTERNATIONAL FIB SIMPOSIUM ON CONCEPTUAL DESIGN OF STRUCTURES. 2025, Rio de Janeiro. Proceedings… p.177-183.
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