Study on Transient Air Permeability of Concrete under Different Curing Conditions

Song Mu; Ye Wu; Qian Jiang; Liang Shi

doi:10.4028/www.scientific.net/KEM.629-630.223

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 629-630Study on Transient Air Permeability of Concrete...

Study on Transient Air Permeability of Concrete under Different Curing Conditions

Abstract:

Quality of concrete cover is a key factor for concrete durability. In fact, the quality of concrete cover has close relationship with mixture design and curing condition. Present study adopted transient test of air permeability to study on affecting factors of air permeability of concrete. Results dedicated that curing condition was the most important factor to affect transient air permeability of concrete. Adequate curing is required to decrease effectively the air permeability, and low ratio of W/B is helpful to reduce air permeability. Air permeability of concrete samples, added with fly ash or slag powder, was more sensitive to dry curing than standard curing. Besides, CaO based expansive agent effectively decreased coefficient of air permeability at the adequate curing condition

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Periodical:

Key Engineering Materials (Volumes 629-630)

Pages:

223-228

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.629-630.223

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Online since:

October 2014

Authors:

Song Mu*, Ye Wu, Qian Jiang, Liang Shi

Keywords:

Air Permeability, Curing Condition, Mineral Admixture, Ratio of Water to Binder

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