Unimaginable is the creative imagination in a world without solid. The spirit of frameworks is concrete. For constructions to become strong, concrete is crucial. To achieve strength, traditional cement, which is made of concrete, fine aggregate, coarse aggregate, and water, has to be relieved. So, it is anticipated to need a base period of 28 days to achieve goal strength and optimum hydration. Lack of proper relieving might negatively affect a person's strength and toughness. One type of modern cement that now fixes itself by retaining water (dampness content) is self-curing concrete. Conventional concrete uses polyethylene glycol as an additive to provide greater hydration, which increases the concrete's strength. Focusing on the compressive strength, tensile strength, and flexural strength of concrete by varying the measurements of 1%, 1.5%, 2%, and 2.5% of PEG - 4000 by weight of concrete for M50 grade of cement is the goal of this project evaluation. This essay discusses an investigation into the effects of using copper slag in place of sand on the characteristics of self-curing concrete (SCUC). Compressive, tensile, and flexural strengths of concrete mixtures were evaluated. The goal of the current review is to determine the PEG-4000 inclusion level that is most appropriate for self-curing concrete. M-50 grade concrete must be used for testing.