Self-healing of Micro-cracks in Engineered Cementitious Composites
Abstract: 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.
Author: Suryanto B., Wilson
S.A., McCarter W.J.
Journal Code: jptsipilgg150028
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