Visual Evaluation of Water Penetration Resistance of Concrete by Watering
By S. Nishio, K. Nakarai, K. Hani and K. Yano

Concrete Journal, Vol.60, No.8, Aug. 2022


Synopsis
High durability is required of concrete structures to achieve long-term service life as important infrastructures. The high durable structures by excellent related technologies also contribute to establishing a sustainable society with carbon neutral in the view of the global trend. The authors have been working on the development of a simple technique for evaluating the moisture penetration resistance of cover concrete in actual structures and its practical applications. With the technique, the water penetration resistance of hardened concrete can be directly inspected by the clients during the construction periods, and if necessary, the construction method can be reviewed and improved to achieve the construction of highly durable structures. This technical report presents an outline and practical examples of the water intentional spray test, which is a simple visual evaluation technique by watering.
Keywords:
Cover concrete quality, Water penetration resistance, Nondestructive test, Quality management, Water intentional spray test

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