1:2:4
1:2:4
1:2:41 :2:3
1:2:41 :2:3
The ratios of cement to sand to aggregate for the different grades of concrete are as follows. M10 has a ratio of 1:3:6. M15 has a ratio of 1:2:4. M20 has a ratio of 1:1.5:3. M25 has a ratio of 1:1:2, but M30 has no set ratio. It is a designed mixture to achieve the stress tolerance desired.
m15- 6.25 m20 - 6.8 m25 - 7.5 m30- 8.5 m35- 9 m40 - 10
The M15 grade of concrete typically has a mix ratio of 1:2:4, which means 1 part cement, 2 parts sand, and 4 parts coarse aggregate. The cement content for M15 concrete is generally around 240 kg per cubic meter of concrete. However, this can vary based on specific project requirements and local practices. Always consult relevant standards and guidelines for precise specifications.
1:2:4
15
from M30 onwards the mixes are designed. they dont have a const ration as in the case of mixes like M10, M15....,M25
To calculate the number of bags of cement required for 1 cubic meter of M15 grade concrete, first determine the mix ratio, which is typically 1:2:4 (Cement:Sand:Aggregate). For M15 concrete, approximately 1 part cement is needed for every 7.5 parts of total volume (1 + 2 + 4 = 7). Given that one bag of cement weighs 50 kg and has a volume of about 0.035 cubic meters, you would need around 7.5 bags of cement for 1 cubic meter of M15 concrete.
It depends on the Grade of Concrete. general grades are M15, M20, M25 etc. here are the nos. of bag required -------------------Bag for 1 cum---------------Bag for 5 cum M15------------------- 6.4----------------------------32 M20-------------------- 8-----------------------------40 M25--------------------12----------------------------60
Mix ratio for M5 concrete is 1:2:4compressive strength is 15N/mm2 @ 28 days.1 part of cement, 2 part of sand, 4 parts of coarse aggregate.