Effect of Micro-Climatic Condition on Durability Performance of Concrete

Abstract:

The most common deterioration cause of concrete structures over the world is chloride ions attacks. Thus, service life modeling of concrete is a crucial issue in civil engineering society. Many studies on the topic have been accomplished, however, it is not easy to review literatures about environmental analysis, in particular micro-climatic condition of concrete under chloride laden environment. Since the durability of concrete depends on the properties of the surface concrete, micro-climatic condition which influences on surface concrete realistically should be considered. This study is devoted to analysis the micro-climatic condition of concrete structures, based on the in-situ monitoring of weather in marine environment. The outcome will be combined with modules of material parameters such as chloride diffusivity, surface chloride content, and so on. It is expected that the result of this work should be available for the prediction of chloride profile of marine concrete at atmospheric zone or tidal zone.

• Periodical: Key Engineering Materials (Volumes 452-453)
• Pages: 545-548
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.452-453.545
• Online since: November 2010
• Authors: In Seok Yoon
• Keywords: Deterioration, Durability of Concrete, Environmental Analysis, Micro-Climatic Condition

References

[1] In-Seok Yoon, Analysis on Micro-Climatic Condition of Marine Concrete in Korea, Proceeding of Korea Concrete Institute, Vol. 2, (2007).

[2] In-Seok Yoon, Analytical Modelling of Chloride Diffusivity in Concrete, Key Engineering Materials, Vol. 385-387, pp.281-284, Transtech, (2008).

DOI: 10.4028/www.scientific.net/kem.385-387.281

[2] [4] [6] [8] [10] [12] [14] [16] 10 100 1000 10000 Time (days) Chloride diffusivity Temp. constant (=20 degree) Atmosphere Temp Microclimatic Temp.

[1] E-8 cm2/s] Fig. 8 Effect of temperature on chloride diffusivity of concrete tatm RHatm tcon RHcon Atmosphere Concrete Surface Fig. 9 Micro-climatic condition of concrete.