Classification of Durability of Concrete Structures Based on Environmental Action

Abstract:

In order to supply basic principles for durability design of concrete structures, the corrosion mechanism of concrete structures under common atmospheric environment was analyzed. The climatic condition of temperature (T) and relative humidity (RH) which has important impacts on concrete carbonation, was chosen as main factors to grade. On the basis of partition for the influence degrees of temperature and relative humidity on the concrete carbonation, the environmental action in concrete structures was classified with a comprehensive evaluation method. The results show that both temperature and relative humidity can be partitioned into five grades. The concrete carbonation is classified into five grades according to influencing factors of temperature and relative humidity to concrete carbonation levels. The carbonation depth which is calculated with the average of positive temperature and relative humidity is taken as the control index of classification.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 3213-3217
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.3213
• Online since: October 2012
• Authors: Ke Bo Zhang, Yun Li Yan
• Keywords: Classification, Comprehensive Evaluation, Concrete Carbonation, Concrete Structure, Durability, Environmental Action

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