The type of concrete generally with compressive strength of 6000psi 40mpa or greater is called as hsc we need high strength concrete in our modern infrastructures in order to put the concrete into service at much earlier stage to build up high rise building by reducing column sizes and increasing available space or in case of long span bridges.
High strength concrete mix proportions.
In this type of mix this nominal concrete mix ratios and concrete constituent proportions are prefixed and specified.
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.
Mix all ingredients for 5 minutes to blend the water.
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.
Concrete strength measured using concrete cubes produce a results different than concrete cylinders.
Conservative estimates put concrete cylinders at 80 of concrete cubes for high strength.