High strength concrete mixes ratio m50 to m70 grade concrete mix ratio is manual designed e g m70 the quantity of cement sand fine aggregate and coarse aggregate are batched in volume as per the design mix.
High strength concrete mix proportions.
Mix all ingredients for 5 minutes to blend the water.
Conservative estimates put concrete cylinders at 80 of concrete cubes for high strength.
In this type of mix this nominal concrete mix ratios and concrete constituent proportions are prefixed and specified.
One of the best concrete mix ratios is 1 part cement 3 parts sand and 3 parts aggregate this will produce approximately a 3000 psi concrete mix.
Mix the ingredients for another 5 minutes and then you are done.
You have now made ultra high performance concrete with strength of approximately 30 000 psi.
The strength of this mix ratio is good for most concrete slabs footings steps and foundation walls.