Effects of Restraint Condition on Carbonation of Concrete Containing Expansive Agent

Abstract:

The concrete containing expansive agent, when limited, is affected by the addition of expansive admixture much, which influence the carbonation resistance. This article makes a comparison with anti-carbonation ability of concrete under restraint and non-restraint condition. The compressive strength and carbonation depth are tested, and the changes of micro-structure are also analyzed with TG-DSC and MIP analysis. The results reveal that single-dimensional restraint condition can efficiently improve the pore structure of concrete. And expansive agent also has a slight improvement to it. Single-dimensional restraint condition can obviously enhance the anti-carbonation ability of concrete containing expansive agent.

• Periodical: Advanced Materials Research (Volumes 378-379)
• Pages: 147-150
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.378-379.147
• Online since: October 2011
• Authors: Liu Qing Tu, Zhong He Shui, Wen Bing Xu, Wei Chen, Jun Tao Ma
• Keywords: Carbonation, Concrete, Expansive Agent, Non-Restraint Condition, Restraint Condition

References

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