"It is imperative to promote the use of durable and sustainable concretes having adequate and sensitive specifications in order to avoid any waste of materials. This book … can be considered as a basic tool to achieve such a goal. It has been conceived and written by three great engineers who have great experience. It presents very clearly what to do, how to do it and when to do it for better concrete practice."— Pierre-Claude Aïtcin, Université de Sherbrooke, Canada"Mr. Day is a pioneer in the use of CUSUM charts for concrete test data analysis and Multigrade, Multivariable, Cusum QC. The trend towards concrete performance based specifications dealt with in a book perhaps for the first time Mr Day has educated hundreds of concrete quality professionals worldwide The very broad scope for the book and knowledgeable authors makes this book a must buy."––Karthik H. Obla, National Ready Mixed Concrete Association, Silver Spring, Maryland