Cement 180 sand 800 stone 1020 water 180

This is one aspect.

Example 2. If some admixture or mortar is used, the cement is about 250 sand 1500 water 160.

Example 3. The mixing ratio of 3. C25: cement: sand; Stone: water =1:1.40: 2.85: 0.47 (weight ratio) Material dosage (kg/m3): cement: 415kg; ; Sand: 583kg；; Stone:1184 kg; Water: 195 kg

C30 mixture ratio: cement: sand: stone: water =1:1.18: 2.63: 0.41(weight ratio) Material consumption.

(kg/m3): cement: 459 kg; ; Sand: 542kg；; Stone: 1206kg water: 188kg.

C35 mixture ratio (cement above grade 42.5 must be used): cement: sand; Stone: water =1:1.37: 2.78: 0.46 weight ratio) Material dosage (kg/m3): cement: 424kg；; Sand: 581kg; ; Stone: 1 179kg water: 195kg.

Mixture ratio C40 (cement above grade 42.5 must be used): cement: sand; Stone: water =1:1.08: 2.41.40 (weight ratio) Material dosage (kg/m3): cement: 488kg；; Sand: 528kg；; Stone: 1 176kg water: 195kg.