Experiment Study on the Frost Resistance of Steel Fiber Reinforced Concrete on the Microstructure

Lei Jiang; Di Tao Niu; Min Bai

doi:10.4028/www.scientific.net/AMR.368-373.357

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 368-373Experiment Study on the Frost Resistance of Steel...

Experiment Study on the Frost Resistance of Steel Fiber Reinforced Concrete on the Microstructure

Abstract:

Based on the fast freeze-thaw test in 3.5% NaCl solution, the frost resistance of steel fiber reinforced concrete (SFRC) was studied in this paper. On the basis of scanning electron microscope (SEM) and mercury intrusion method, the microstructure and pore structure of SFRC was analysed. The reinforced mechanism of SFRC under the cooperation of freeze-thaw and NaCl solution was discussed. The test results show that adding appropriate amount of steel fibers into concrete can reduce the pore porosity and improve the compactness of concrete. The effects of steel fiber with proper volume fraction can inhibit the peeling of the concrete and reduce its damage rate. The volume of steel fiber on the frost-resisting property of SFRC is obvious.

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Periodical:

Advanced Materials Research (Volumes 368-373)

Pages:

357-360

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.368-373.357

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Online since:

October 2011

Authors:

Lei Jiang, Di Tao Niu, Min Bai

Keywords:

Concrete, Freeze-Thaw Circulation, Frost-Resistance, Steel Fiber (SF)

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