ABSTRACT
This paper reviews the approach and methods of durability design for concrete infrastructures in main standards and codes in Asia. The state-of-the-art of durability design in China, Japan and Asian Concrete Federation (ACF) is firstly addressed, and then the design approach is introduced for the fundamental concepts, prescriptive approach and performance-based approach. Both the strength and weakness are addressed for these two approaches. Afterwards, the Chinese code GB/T 50,476 is reviewed for its mixed approach for durability requirements, the Japanese standard SSCS is investigated for its model-based design approaches against steel corrosion, and ACF Model Code is analyzed for its deterioration indices. The limitation on the loading-induced cracks is also critically reviewed for its pertinence to durability protection. From the review, it suggested that durability standards should continue to incorporate reliable models, life-cycle elements and multi-barrier strategy to achieve better long-term performance of concrete infrastructures.
Acknowledgments
The research is supported by [National Key R&D Program of China] under Grant [No. 2017YFB0309904]; and [NSFC] under Grant [No. 51778332].
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No potential conflict of interest was reported by the author(s).
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Kefei Li
Dr. Kefei Li got his PhD degrees from Tongji University, China (2000) and Ecole Nationale des Ponts et Chaussees, France (2002), and works as full professor of Civil Engineering in Tsinghua University, China (2004-now).
Tamon Ueda
Dr. Tamon Ueda got his PhD in University of Tokyo, Japan (1982), worked as full professor in Hokkaido University, Japan (-2019) and distinguished professor in ShenZhen University, China (2019-now).