TY - JOUR
T1 - Experimental study on self-healing capability of cracked ultra-high-performance hybrid-fiber-reinforced cementitious composites
AU - Kwon, Sukmin
AU - Nishiwaki, Tomoya
AU - Kikuta, Takatsune
AU - Mihashi, Hirozo
N1 - Funding Information:
This research was partially supported by a Grant-in-Aid for Young Scientists (A) from the Ministry of Education, Culture, Sports, Science and Technology (#23686078, 2011–2014).
Publisher Copyright:
© 2013 Sustainable Construction Materials and Technologies. All rights reserved.
PY - 2013
Y1 - 2013
N2 - High-performance fiber-reinforced cementitious composites demonstrate very good self-healing capability after immersion in water due to the closely spaced multiple cracks. To investigate the self-healing capability of ultra-high-performance hybrid-fiber-reinforced cementitious composite (UHP-HFRCC), some experiments were carried out that focused on the recovery of the air permeability coefficient and chemical precipitation on the crack surface. After cracks were introduced, the specimens were placed under uniaxial tensile load, inducing up to 0.2% strain; these cracked specimens were then immersed in water to initiate self-healing. The self-healing performance of the specimens was investigated by means of microscopic observation and an air permeability test. As a result, UHP-HFRCC was confirmed to have crystallization products within its cracks and its air permeability coefficient was recovered significantly, which means UHP-HFRCC has great potential for self-healing.
AB - High-performance fiber-reinforced cementitious composites demonstrate very good self-healing capability after immersion in water due to the closely spaced multiple cracks. To investigate the self-healing capability of ultra-high-performance hybrid-fiber-reinforced cementitious composite (UHP-HFRCC), some experiments were carried out that focused on the recovery of the air permeability coefficient and chemical precipitation on the crack surface. After cracks were introduced, the specimens were placed under uniaxial tensile load, inducing up to 0.2% strain; these cracked specimens were then immersed in water to initiate self-healing. The self-healing performance of the specimens was investigated by means of microscopic observation and an air permeability test. As a result, UHP-HFRCC was confirmed to have crystallization products within its cracks and its air permeability coefficient was recovered significantly, which means UHP-HFRCC has great potential for self-healing.
KW - Air permeability test
KW - Self-healing
KW - Torrent test
KW - UHP-HFRCC
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M3 - Conference article
AN - SCOPUS:85049742405
VL - 2013-August
JO - Sustainable Construction Materials and Technologies
JF - Sustainable Construction Materials and Technologies
SN - 2515-3048
M1 - e271
T2 - 3rd International Conference on Sustainable Construction Materials and Technologies, SCMT 2013
Y2 - 18 August 2013 through 21 August 2013
ER -