M80 Grade Pumpable Concrete Civil Engineering
1. M80 Grade of concrete design for a mean target strength of: 80 + x 5 = N/mm 2 at 28 day age. 2. With the given set of materials from various trials it was found that with OPC 450 Kg/m 3, Silica Fume 45 Kg/m 3 and W/C+SF ratio of gives 28day average cube compressive strength of .