This document provides an overview of concrete technology and design. It discusses the key constituents of concrete, including cement, coarse aggregate, fine aggregate, and water. It also outlines various testing methods for concrete. The document then discusses the Indian Standard Code for concrete design and different design methods, focusing on the limit state method. It describes limit states of collapse and serviceability and how they are applied in design. Finally, it lists some common concrete structures that can be designed using the limit state method according to the Indian Standard Code, and provides references for further reading.