#1 Overview of Cement chemistry & Concrete Performance | Cement History & Production

foreign [Music] [Music]

set of lectures in this course on admixtures and special concrete the objective of this first set of lectures is to just get you up to date with an overview of cement chemistry and concrete performance which is essential from the Viewpoint of understanding how the chemical and mental additives would behave in the system that is

comprised of cement water and aggregate so some Basics about cement chemistry and how the hydration reactions actually take place what kind of factors control the fresh and hardened properties of concrete so those are some things that we learn in this chapter and of course a bulk of your textbook prescribed for the course that is the

book by Mata and Montero the first seven chapters are dedicated towards what I'm going to basically cover in this very brief few lectures right so let's get on with it so in this lecture we'll talk about cement production we'll talk about composition of cement then this will be followed by some understanding of the

types of cement that are available hydration of the cement structure of the hydrated products the strength of the concrete and the factors governing the strength then we'll talk finally about durability and dimensional stability of concrete now as far as cement itself is concerned we have gone through a lot of inventions that have led to the development of

modern Portland cement in the past you know very well from our heritage structures that people have been using lime as a building material primarily for binding purposes this lime was used in conjunction with many other additives which were based on a lot of the local construction practices in India for instance if you go to the southern part