Effects of Restraint Condition on Carbonation of Concrete Containing Expansive Agent
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.
Brendan Gan, Yu Gan and Y. Yu
L. Q. Tu et al., "Effects of Restraint Condition on Carbonation of Concrete Containing Expansive Agent", Advanced Materials Research, Vols. 378-379, pp. 147-150, 2012