Optimizing the dosage of superabsorbent polymers (SAP) in self-curing concrete mixes

In the quest for more sustainable construction materials, this research presents an innovative approach to optimize superabsorbent polymer (SAP) dosage in self-curing concrete mixes. Self-curing concrete, which utilizes SAP to retain moisture for hydration, has the potential to enhance performance while reducing the need for traditional curing methods. This study investigates the optimization of superabsorbent polymer (SAP) dosage in self-curing concrete mixes to enhance hydration efficiency, improve mechanical properties, and minimize cracking due to shrinkage. As a sustainable alternative to conventional curing methods, self-curing concrete benefits from the water-retaining capabilities of SAP, which facilitates continuous moisture availability during the curing process. Various concrete mixes were prepared with differing SAP dosages, ranging from 0% to 1% by weight of cement. The experimental program included assessments of workability, compressive strength over a period of 7, 14 and 28 days. Additionally, the effects of different SAP types were evaluated to determine their impact on concrete performance metrics. Results indicated that optimal SAP incorporation significantly improved the performance of self-curing concrete, achieving a balance between enhanced hydration, workability, and mechanical strength. The findings suggest that an optimal SAP dosage not only leads to effective self-curing but also contributes to a reduction in environmental impact by minimizing water usage in the curing process. This research provides a comprehensive approach to optimize SAP use in self-curing concrete, paving the way for more sustainable construction practices.