Self-healing of Micro-cracks in Engineered Cementitious Composites

Cementitious composite ECC self-healing crack ultrasonic pulse velocity.

Authors

  • Benny Suryanto School of Energy, Geoscience, Infrastructure and Society; Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh, UNITED KINGDOM
  • S.A. Wilson School of Energy, Geoscience, Infrastructure and Society; Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh, UNITED KINGDOM
  • W.J. McCarter School of Energy, Geoscience, Infrastructure and Society; Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh, UNITED KINGDOM

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The performance of an Engineered Cementitious Composite (ECC) to self-heal micro-cracks under a controlled laboratory environment is presented. Ten dog-bone shaped samples were prepared; five of them were preloaded to known strains and then left to heal in water in a temperature-controlled laboratory. Ultrasonic pulse velocity (UPV) measurements were undertaken to monitor the crack-healing process. It was found that all samples exhibited recoveries in UPV and were able to recover to between 96.6% and 98% of their pre-test UPV values over a period of four weeks. An accelerated rate of healing was observed in the initial two-day period immediately following the preloading test.

How to Cite

Self-healing of Micro-cracks in Engineered Cementitious Composites. (2015). Civil Engineering Dimension, 17(3), 187-194. https://doi.org/10.9744/ced.17.3.187-194

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