The focus of this study delves into the potential of using a combination of thermally stimulated superplasticizer and recycled aggregate derived from demolished waste as a partial substitute for natural aggregate in Self-compacting concrete (SCC) works. The investigation encompasses three series of mixes i.e., Series I, Series II, and Series III. In Series I, the effect of adding a thermally stimulated superplasticizer at 50℃ on the workability of the concrete is examined in mix C2. Series II evaluates the influence of substituting natural coarse aggregate (NCA) with ratios of 0%, 30%, 45%, and 60% of the recycled concrete aggregate (RCA). The mixes were appraised for their fresh, mechanical, and long-term properties of concrete compared to SCC containing 100% NCA. The outcomes demonstrate that incorporating higher proportions of RCA into mixtures leads to a reduction in compressive strength after 28 days of curing with a maximum decrease of 8.3 MPa for the CR0S65 mix from the control CR0S0, which had a strength of 33.9 MPa. Moreover, there was a slight decline in tensile strength, along with an increase in both chloride ion penetration and water penetration. Series III involves the addition of silica fumes to improve the hardened and durability characteristics of the concrete. The fresh properties of concrete were evaluated through Slump flow, T50, V-funnel, and L-box tests.