3.8 Proceedings Paper

Acoustic emission monitoring of the fracture behavior of mortar specimens fabricated using recycled concrete aggregates

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SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2557347

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Acoustic emission; mortar; recycled concrete aggregates; fine aggregates

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This study aims in examining the fracture behavior of recycled mortar specimens using the acoustic emission technique. To produce the recycled mortar beams, a portion of fine recycled concrete aggregates has been used, and the specimens were tested in three-point bending. This work led to a comparison between the fracture behavior of recycled mortar specimens with steel fiber-reinforced and baseline mortars fabricated with 100% natural sand. The results indicate that the use of recycled aggregates in mortars can be successfully characterized by acoustic emission parameters. This approach offers a reliable evaluation of the fracture mechanism making acoustic emission a valuable nondestructive evaluation tool in the growing sector of recycled building materials.

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