ABSTRACT

The strength and performance of concrete are primarily dependent on the mix design of concrete, i.e., the proportions of coarse and fine aggregates, type of cement, volume of water, presence of admixture, etc. Some other factors, such as workability, curing, and placement environment are also important in achieving the desired performance. This chapter discusses the procedure of proportioning the ingredients to achieve the desired strength, performance, workability, and durability. It also discusses proper handling, curing, and early-age cracking control methods and also how the proportions of cement, aggregates, and water are determined based on the strength requirement, service environment, and other conditions. The chapter addresses the production and delivery methods of ready-mix. Some knowledge of concrete mix design factors, such as water–cement ratio, slump test, workability, air void requirements, etc. are required.