Climate Change Research ›› 2015, Vol. 11 ›› Issue (5): 308-312.doi: 10.3969/j.issn.1673-1719.2015.05.002

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Freezing-Thawing System and Durability of Hydraulic Concrete

Lu Cairong1, 2, 3, Yang Hu1   

  1. 1 Nanjing Hydraulic Research Institute, Nanjing 210029, China;
    2 Research Center for Climate Change, MWR, Nanjing 210029, China;
    3 Research Center on New Materials in Hydraulic structures, MWR, Nanjing 210029, China
  • Received:2015-07-06 Revised:2015-08-18 Online:2015-09-30 Published:2015-09-30

Abstract: As a result of climate change, the freezing and thawing temperature of hydraulic concrete in different climate zoning is changing. The freezing and thawing tests of hydraulic concrete with different strength levels and different frost resistance levels were conducted under different low temperatures changed from -5℃ to -30℃ by using the self-made climate simulation system. An analysis chart about freezing and thawing temperature-strength grade-frost resistance design grade-maximum freezing and thawing cycles of hydraulic concrete was put forward according to the freezing and thawing tests result. The current anti-freeze system of hydraulic concrete was discussed in this paper. The indirect effects of low temperature of freezing and thawing test on greenhouse gas emission reductions were also analyzed.

Key words: freezing-thawing system, hydraulic concrete, durability, attribution analysis, conserve energy and emissions reduction

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