Table 1: Main strength parameters of the RCC mixes used in the project RCC mix (kg/m3)* Age (days) Compression strength (MPa) Tension strength (MPa) Elastic module (GPa) 150 7 8.0 1.1 14.5 150 90 17.0 2.0 33.0 150 365 25.0 2.4 42.0 125 7 6.5 0.8 14.0 125 90 13.5 1.4 32.0 125 365 16.5 2.0 36.0 100 7 4.5 0.6 7.0 100 90 9.5 1.0 25.0 100 365 13.5 1.6 29.0 85 7 4.0 0.4 6.0 85 90 8.0 0.8 21.0 85 365 10.0 1.4 26.0 *kg cement per m3 mix