Experimental study on self-healing capability of cracked ultra-high-performance hybrid-fiber-reinforced cementitious composites

Sukmin Kwon, Tomoya Nishiwaki, Takatsune Kikuta, Hirozo Mihashi

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号e271
ジャーナルSustainable Construction Materials and Technologies
2013-August
出版ステータスPublished - 2013
イベント3rd International Conference on Sustainable Construction Materials and Technologies, SCMT 2013 - Kyoto, Japan
継続期間: 2013 8 182013 8 21

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Materials Science(all)

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