M30 mix should be a mix design in laboratory with the available raw materials that is used in the preparation of concrete. The aggregates, sand have different compressive strength, water absorption and these values are used in mix design.
40 20 concrete design mix is the water to cementitious materials ratio. This is what determines the class of the design mix.
weight of 1 cubic mitre of concrete
upto M25 it is nominal mix but after that are the design mix which need to becalculated.....
design mix M25
a concrete mix of suitable slump as per mix design should be selected
The ability of a firm to quickly increase or decrease its production rate and still be profitable.
ITT offers a class in interior design
it has more cement than the normal mix
Fly ash bricks class 10 mix properties makes is heterogeneous.
Class Design And Component Design
Depending on the jeweller and the type of design and the intricacy of the design it probably could take up to a month to design a nice class ring. You would have to find a specialist in this field.
land