Answer / manu

The ratio of material that to be used for concrete mix of particular grade that is analysed is said as mix design. 

Answer / shadavali123@gmail.com

The mix design r m30 to m80 is called design mix

Answer / xyz

The proportion ingredients is done by weight is known as design mix

Answer / hemraj

concrete are two type mix 
 nominal mix
disign mix 
in nominal mix grade are changes but disign mix grade are no changes such as M25 1:1:2 

Answer / sachin

Mix design means achieve maximum strength by using lowest cement content for economical as well as workable called Mix design which is weight besic .

what is the density of coarse sand

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