The Frost Resistance of High Strength Concrete Containing Super-Fine Mineral Admixture

Hong Fang Li; Yi Xia

doi:10.4028/www.scientific.net/AMR.512-515.2999

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 512-515The Frost Resistance of High Strength Concrete...

The Frost Resistance of High Strength Concrete Containing Super-Fine Mineral Admixture

Abstract:

The influence of limestone powder, lithium slag and air-entraining agent on frost resistance of concretes was investigated by freezing-thawing cycle tests. The elastic moduli and weight loss rates of concretes before and after tests were checked. The results show the introduction of limestone powder into concrete is disadvantageous to its frost resistance, which gets worse as limestone powder contents increase. Air-entraining agent used in concrete can improve its frost resistance. The frost resistance grades of concrete containing a certain of air-entraining agent (0.2-0.4‰) can reach F1500, while it is below F300 for limestone powder concrete which is absent of air-entraining agent. The addition of lithium slag into concrete is helpful to frost resistance, and optimum mixing amount is 10%.

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Periodical:

Advanced Materials Research (Volumes 512-515)

Pages:

2999-3002

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.512-515.2999

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Online since:

May 2012

Authors:

Hong Fang Li, Yi Xia

Keywords:

Freezing-Thawing Cycle, Frost Resistance, High-Strength Concrete (HSC)

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References

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