Monitoring of self-healing within cementitious materials including superabsorbent polymers by means of elastic waves. Vrije Universiteit Brussel
enables the improvement of the self-healing ability through a more
continuous water supply. Using surface ultrasonic measurements, the
closure of cracks was monitored over time and could be correlated to
microscopic analysis, but no information regarding healing at different
depths is available. Also, the link with the regain in mechanical
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