Mix Design of M45 Grade of Concrete

1. Mix stipulation for ingredients of concrete

• Grade of Concrete : M45
• Type of Cement : OPC 53 grade confirming to IS 269
• Type of Mineral admixture : GGBFS Confirming to IS 12089
• Maximum Nominal Size Aggregate : 20 mm
• Minimum Cement content : 380Kg/cum
• Maximum Water- Cement Ratio : 0.4
• Workability : 150 ± 25 mm (slump)
• Exposure Condition : Moderate
• Method of Concrete Placing : Pumping
• Degree of Supervision : Good
• Type of Aggregate : Crushed angular Aggregate, Crushed Stone Sand
• Chemical admixture type : Super plasticizers Confirming IS 9103:1999

2. Material Properties

• Cement : Ultratech OPC 53 grade confirming to IS 269
• Specific Gravity of cement : 3.15
• Ground Granulated Blast Furnace Slag (GGBFS) used : JSW-GGBFS Confirming to IS 12089
• Specific Gravity of GGBFS : 2.91
• Chemical Admixture : FOSROC Auramix 400
• Specific Gravity of Admixture : 1.096
• Specific Gravity
  • Coarse aggregate
    • 20mm : 2.63
    • 12.5mm : 2.62