About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
|
| Presentation Title |
Valorization of Ornamental Stone Waste in Adhesive Mortars: Mechanical and Microstructural Insights |
| Author(s) |
Niander Aguiar Cerqueira, Marilucia dos Santos da Silva, Jonas dos Santos Alexandre, Euzébio Bernabé Zanelato |
| On-Site Speaker (Planned) |
Niander Aguiar Cerqueira |
| Abstract Scope |
This study evaluates the incorporation of ornamental stone processing waste into adhesive mortars as a partial substitute for natural fine aggregate. Mortar formulations were produced with 0%, 10%, 20%, and 30% replacement levels, using a standard 1:2 cement-to-aggregate mass ratio. Comprehensive fresh-state (air content, density, water retention, slip) and hardened-state (open time, tensile adhesion strength under varied curing regimes) characterizations were performed. Results showed significant reductions in entrained air and improved density with increasing waste content. A 30% replacement yielded the highest tensile adhesion strength (0.97 MPa) under normal curing—surpassing the 0.5 MPa threshold defined by Brazilian standards for AC I and AC II mortars. The findings support the sustainable reuse of siliceous-rich residues, aligning material performance with environmental benefits. This work contributes to the circular economy and enhances structure-property correlations in eco-efficient cementitious systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Other, Other |