Influence of Mixture Composition and Type of Cementitious Materials on Enhancing the Fresh Properties and Stability of Self Consolidating Rubberized Concrete
AbstractAn experimental investigation was conducted to study the development of self consolidating rubberized concrete (SCRC) with improved flowability, passing ability, stability, and strength for multiple structural applications. The investigation particularly aimed to maximize the percentage of used crumb rubber (CR) in SCRC while minimizing the reduction in strength and stability of the developed mixtures. The experimental test parameters included CR percentage (0 50% by volume of sand) binder content (500 550 kg/m3) coarse aggregate size (10 20 mm) air entrainment, and supplementary cementing material (SCM) (fly ash, ground granulated blast furnace slag, and metakaolin) The performance of the developed SCRC was evaluated based on the results for compressive strength, flowability, passing ability, high range water reducer admixture (HRWRA) demand, coarse aggregate segregation, and CR distribution. The results indicated that mixtures with 500 kg/m3 binder content had acceptable strength, fresh pr.