Development of magnesium phosphate micro-mortars formulate with byproducts and industrial wastes

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Thesis Highlights

1. Utilization of CSP and PV as micro-aggregates in Sust-MPC micro-mortars reduces the
   environmental impact and aligns with circular economy principles, sustainability, and zero
   waste management through revalorization.
2. Micro-mortars with Sust-MPC and CSP as micro-aggregate exhibit improved mechanical strength and thermal stability. The formulation of micro-mortars based on Sust-MPC with CSP as micro-aggregate is considered viable.
3. The leaching potential of Sust-MPC-CSP micro-mortar is better than that of Sust-MPC, as it reduces the concentration of heavy metals and metalloids.
4. Micro-mortars with Sust-MPC and PV as micro-aggregate are considered viable, and the addition of PV enhances the material’s mechanical behavior. The use of PV and LG-MgO subproducts in Sust-MPC micro-mortars promotes a safe circular economy, classified as “non-hazardous” materials at the end of their life cycle.
5. In both Sust-MPC micro-mortars containing PV and those incorporating CSP as micro-aggregate, there were indications supporting the hypothesis of a partial reaction between SiO 2 and Al 2 O 3 -rich particles and the K-struvite matrix, resulting in the formation of other phosphates that can reinforce the Sust-MPC matrix.

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