The Flexural Strength and Frost Resistance of Air Entrained Concrete

Abstract:

The flexural strength and frost resistance properties of air entrained concrete were tested in this study. Although the flexural strength of concrete does not change largely with increasing of air content, it still has a maximum value with air content of 4%. The test results show that the frost resistance increase with increasing of air content. In air entrained concrete, the total air content is not the only factor that affect the final properties of the concrete, the air void structure parameters, including void size, shape, and distribution, are key factors as well. It was found that the air void structure and the frost resistance properties were influenced by the vibration time largely. The optimized vibration time is 30s.

• Periodical: Advanced Engineering Forum (Volume 5)
• Pages: 364-369
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.5.364
• Online since: July 2012
• Authors: Xiu Hua Zheng, Qin Fei Li, Jie Yuan, Yong Ge
• Keywords: Air-Void Structure, Flexural Strength, Freeze-Thaw, Frost Resistance

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