Experimental investigation on durability and fire performance of high strength rubberized concrete

Abstract This study compares high strength rubberized concrete (HSRC) with steel fibre (SF) doses of zero, two-thirds, five percent, and one percent per cubic inch. The microstructure was also examined when Portland cement substituted with ground granulated blast furnace slag (GGBS) at weight percentages of 0%, 10%, and 20% per cubic inch. Adding elastomeric chemicals to a cementitious matrix improves building parts’ physical qualities, durability, and climatic resistance. It will also soften HSRC, preventing shrinkage and foundation movement. Several specimens were heated to 150 °C, 300 °C, 450 °C, and 600 °C for an hour. As rubber content increases, fire-tested goods at a certain depth cool. The ideal amounts of shredded tire rubber determined in the material using machinery-related, destructive, and non-destructive testing that included workability, comfort, and strength. The effect of GGBS and SF on the material’s composition at extremely high temperatures using XRD and SEM. The results show that combining rubberized components like GGBS and SF with 4% rubber reduces CO 2 emissions without decreasing strength. This combination can also improve the physical properties and durability of high-performance concrete at high temperatures. The tested rubberized concrete with GGBS components (0% to 20%) and SF volume percentages (1% to 5%) at 25 °C, 150 °C, 300 °C, 450 °C, and 600 °C. Samples’ compressive strength dropped between 25 and 600 degrees Celsius, except at 150 degrees Celsius, when 20% GGBS and various amounts of SF had a higher compressive strength than room temperature samples. M10S1 also has the lowest GWP-impact normalized energy ratio and M20S1-M10S1 mixes are eco-friendly also a potential replacement for a conventional concrete.