Abstract The performance of limestone calcined clay cement (LC 3 ) concrete that uses fine rubber aggregates (FRA) in place of certain natural fine aggregates is investigated in this study. The research addresses the dual challenge of reducing cement-related CO 2 emissions and utilizing waste rubber in concrete. LC 3 , a low-carbon binder composed of calcined clay (30%), clinker (50%), limestone (15%), and gypsum (5%), was used to partially replace ordinary cement. Fine rubber aggregates derived from waste tires were introduced at the proportion of percentages 5, 10, 15, and 20 with the replacement of fine aggregates. The influences on the fresh and mechanical properties of concrete were investigated. Adding FRA reduced the density and workability of the concrete. However, at 10% replacement, the concrete exhibited satisfactory compressive and flexural strength results for LC 3 OPC combined with FRA.
Khedkar et al. (Fri,) studied this question.
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