Effect of High Temperature on the Expansion and Durability of SSRSC

This study explores the potential of using stainless steel slag, an industrial by-product refining process, as a substitute for cement in concrete to promote material reuse and ecological sustainability. The research involves preparing cylindrical specimen with varying levels substitution, ranging from 0 20%, curing them different ages (1, 3, 7, 28, 56 days) evaluate engineering durability resulting reducing slag (SSRSC). found that compressive strength SSRSC at 28 days was 27.44 MPa, splitting 12.81 MPa 15.34 MPa. As substitution amount increased, decreased, but there positive correlation between strength. ultrasonic wave velocity growth also increased each amount, showing compactness samples improved. surface resistance all lower than 20 kΩ-cm, indicating porosity change caused by were minimal. Regarding durability, high-temperature fire damage 200 °C catalyzed quality, strength, resistance, decreased. After 600 800 °C, decreased 48–57% 76–85%, respectively, higher temperatures have greater effect on early aging. In terms sulfate corrosion reduced likelihood spalling during stages cycle, cumulative weight after fifth cycle control group. autoclave expansion test revealed later age sample, substitution. amounts.