Concrete damage and neutralization under coupling effect of carbonation and freeze-thaw cycles |
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Authors: | Ditao Niu Qianhui Xiao Wenping Zhu |
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Affiliation: | 1. School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
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Abstract: | Simulating the coupling effect brought by freeze-thaw and carbonation environment, we experimentally investigated concrete durability, the variation characteristics of both concrete dynamic elastic modulus, and its neutralization depth. The influences imposed by carbonation on the freeze-thaw damage of concrete was studied as well and vise versa so as to shed light on the influencing mechanism together with the mutual interaction between them. The experimental results show that the damage caused by the coupling effect of freeze-thaw and carbonation on concrete is severer than any single effect of them two could bring. This provides certain theoretical references and paves down foundations for the further study in concrete durability related by the coupling environmental effect. |
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Keywords: | concrete freeze-thaw cycles carbonation coupling effect |
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