The cement content is to be limited from shrinkage, cracking and creep.Maximum nominal size of aggregates to be used in concrete may be as large as possible within the limits prescribed by IS 456:2000.The type of cement influences the rate of development of compressive strength of concrete.The grade designation giving the characteristic strength requirement of concrete.The water-cement ratio is usually expressed in mass The concrete mix design proportions are either by volume or by mass. For e.g., a concrete mix of proportions 1:2:4 means that cement, fine and coarse aggregate are in the ratio 1:2:4 or the mix contains one part of cement, two parts of fine aggregate and four parts of coarse aggregate. 🕑 Reading time: 1 minute Concrete mix design is the process of finding the proportions of concrete mix in terms of ratios of cement, sand and coarse aggregates.
