This text provides a clear introduction to the various experimental techniques used for characterizing the pore structure of hardened cement-based materials. The book begins with a comprehensive outline of the traditional and the recently-developed techniques for determining the pore structure of hardened cement paste and continues with a discussion of the methods used for air-void analysis in air-entrained concrete. Directed to the student and engineer, this book serves as a useful introduction to the topic of microstructure characterization, and provides a comprehensive set of references...