ABSTRACT
This chapter is about the concrete mix design as a very important subject for civil engineers. First, the goals of concrete mix design to achieve an acceptable concrete in both fresh and hardened state are mentioned.
Mix design started with a step-by-step procedure for concrete mix design consisting of the evaluation of standard deviation, mix design compressive strength according to the standard deviation, specification of each aggregate percentage in concrete and the fineness module of total aggregates, specification of water-to-binder ratio and also the amount of free water in concrete, specification of the amount of cement and other binders and also the volume of aggregates in concrete, specification of the weight of aggregates in SSD conditions, and finally, specification of the weight of aggregates in real condition and completion of the mix design.
For a better understanding of the concrete mix design method, three examples are mentioned. The first example is the mix design of a normal C30 concrete. The second example is the mix design of a more specified C40 concrete in a specific condition, and the third example is the mix design of a special C60 concrete.
In the last part of the chapter, the implementation of concrete mix design in the real projects and with high accuracy is described.
