Published Paper Details:

In this study, we developed a self-curing concrete using a geopolymer-based repairing agent with SAP Gel (Super Absorbent Polymer) to address the challenges of water scarcity and curing in high-rise structures. The conventional curing methods often require a large quantity of water, which can be problematic in water-deficient regions. To create the self-curing concrete, we prepared different mixes with varying percentages of SAP Gel (1%, 2%, and 3%) and tested their properties in both fresh and hardened states, including repair specimens. Cement paste was used for repair before filling the concrete. When comparing the self-curing concrete to concrete without any curing, we observed changes in certain properties. The compressive strength decreased by 4.57%, 9.45%, and 14.32% for the respective SAP Gel percentages. The Rebound Hammer value also decreased by 3.3%, 9.58%, and 12.5% with the use of SAP Gel. The Ultra Pulse Velocity (UPV) results were somewhat mixed. At some SAP Gel percentages, the UPV decreased by 2.17% and 0.72%, while at another percentage, it increased by 0.96%. Based on the results, we concluded that the self-curing concrete with SAP Gel-based geopolymer as a repairing agent shows promise for repairing M25 grade concrete using M30 grade concrete. This approach can reduce water consumption and provide a sustainable solution for concrete repair.