How to calculate the quantity of water for a given mix concrete. As it would be required to calculate for mix 1:2:4.

*This answer was edited.*

PPC: Approximately 15 to 30% of ordinary Portland cement is replaced with fly ash in Portland pozzolana cement. The compressive strength of Portland pozzolana cement is more for long term use compared to ordinary Portland cement. Ordinary Portland cement is one of the widely used cement. For residenRead more

# PPC:

Approximately 15 to 30% of ordinary Portland cement is replaced with fly ash in Portland pozzolana cement.

The compressive strength of Portland pozzolana cement is more for long term use compared to ordinary Portland cement.

Ordinary Portland cement is one of the widely used cement.

For residential construction, we prefer Portland pozzolana cement as compared to ordinary Portland cement. We use ordinary Portland cement only for commercial purposes.

Three grades of cement are available 33, 43, and 53.

33 grade of cement means the compressive strength of cement after 28 days of curing should be at least 33 mega Pascal not more than that value.

43 grade of cement was the compressive strength of cement after 28 days of curing should be at least 43 Newton per mm square or more than that.

Similarly, 53 Grade of cement means compressive strength of cement after 28 days of curing should be at least 53 Newton per mm square or more than that value.

Thank you.

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## Preet Chovatiya

As we know 1:2:4 ratio is for M15 concrete. Generally Water quantity is calculated as per below formula: Water Quantity=W/C ratio*Cement Quantity Generally W/C ratio is lays between 0.4 to 0.6 as per IS 10262(2009). Now first we have to assume cement quantity, so let's assume cement quantity=50 KG aRead more

As we know 1:2:4 ratio is for M15 concrete. Generally Water quantity is calculated as per below formula:

Water Quantity=W/C ratio*Cement QuantityGenerally W/C ratio is lays between 0.4 to 0.6 as per IS 10262(2009).

Now first we have to assume cement quantity, so let’s assume cement quantity=50 KG and W/C ratio=0.5

Now let’s calculate water quantity for 50 KG cement.

See lessWater Quantity=0.5*50=25 liter.