Effect of adding rubber particles to concrete by means of fractional substitution for fine aggregate and testing their mechanical properties is presented in this work. Crumb rubber (CR) and rubber powder (RP) were the two diverse rubber particles that were studied. In this study, rubber particles with sizes ranging from 2.361.18 mm and rubber powder with a size of 30 (micron) were used. Mechanical properties for samples of concrete combinations with variable proportion of crumb rubber were determined. It was decided to swap fine aggregates with unique rubber particles with an incremental exchange rate of 5% and up to 20% of fine aggregates. According to the findings of this investigation, rubber in powdered form has a negative impact on concrete. The inclusion of rubber in concrete boosted the flexural and splitting tensile strengths. Abrasion resistance was optimum at 15% and then reduced. Impact resistance is increased up to 10% replacement.