Materials 2014, 7(1), 508-526; doi:10.3390/ma7010508
Concept Paper

Mechanical Characterization of High-Performance Steel-Fiber Reinforced Cement Composites with Self-Healing Effect

Received: 10 December 2013; in revised form: 2 January 2014 / Accepted: 7 January 2014 / Published: 20 January 2014
(This article belongs to the Special Issue Self-healing Concrete)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The crack self-healing behavior of high-performance steel-fiber reinforced cement composites (HPSFRCs) was investigated. High-strength deformed steel fibers were employed in a high strength mortar with very fine silica sand to decreasing the crack width by generating higher interfacial bond strength. The width of micro-cracks, strongly affected by the type of fiber and sand, clearly produced the effects on the self-healing behavior. The use of fine silica sand in HPSFRCs with high strength deformed steel fibers successfully led to rapid healing owing to very fine cracks with width less than 20 µm. The use of very fine silica sand instead of normal sand produced 17%–19% higher tensile strength and 51%–58% smaller width of micro-cracks.
Keywords: self-healing; fiber reinforcement; bond strength; composite; crack detection
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MDPI and ACS Style

Kim, D.J.; Kang, S.H.; Ahn, T.-H. Mechanical Characterization of High-Performance Steel-Fiber Reinforced Cement Composites with Self-Healing Effect. Materials 2014, 7, 508-526.

AMA Style

Kim DJ, Kang SH, Ahn T-H. Mechanical Characterization of High-Performance Steel-Fiber Reinforced Cement Composites with Self-Healing Effect. Materials. 2014; 7(1):508-526.

Chicago/Turabian Style

Kim, Dong J.; Kang, Seok H.; Ahn, Tae-Ho. 2014. "Mechanical Characterization of High-Performance Steel-Fiber Reinforced Cement Composites with Self-Healing Effect." Materials 7, no. 1: 508-526.

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