Residual Strength of Super High Strength Concrete Used Stone-Chip after Exposure to High Temperatures

Guo Can Chen; Zhi Sheng Xu; Wei Hong Tang

doi:10.4028/www.scientific.net/AMR.374-377.2456

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 374-377Residual Strength of Super High Strength Concrete...

Residual Strength of Super High Strength Concrete Used Stone-Chip after Exposure to High Temperatures

Abstract:

This paper presents the results of experimental studies on the residual compressive strength of concrete produced with stone-chip as fine aggregates with the compressive strengths of unheated specimen ranging from 45.8 to 129.5MPa after exposure to high temperatures and the experimental parameters being the temperature, admixtures, and PP fiber. Specimens were heated in an electric furnace for 4h to high temperatures ranging from 150 to 960°C. Experimental results showed that the compressive strengths of super high strength concrete used stone-chip (abbreviated to SHSCUS) and normal strength concrete used stone-chip (abbreviated to NSCUS) after exposure to elevated temperatures changed in the manners different from that of normal strength concrete, which reached their peak at about 400°C, and the presence of pp ﬁbers in SHSCUS concrete could reduce the risk of spalling at the high temperatures and the peak value after fire.

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Periodical:

Advanced Materials Research (Volumes 374-377)

Pages:

2456-2460

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.374-377.2456

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Online since:

October 2011

Authors:

Guo Can Chen, Zhi Sheng Xu, Wei Hong Tang

Keywords:

High-Temperature, Properties at Elevated Temperature, Residual Strength, Spalling Resistance, Super High Strength Concrete Used Stone-Chip (Abbreviated To SHSCUS)

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