CIA CPN28-2005

Outlines the fundamentals of achieving watertight concrete, which can be achieved by bringing together best practice in the three key areas: concrete mix design, structural design and required construction practices on site. The document provides an excellent overview of the topic of watertight concrete structures with a comprehensive list of references for further reading, and will be a valuable source for engineers, architects, building owners and construction managers. Mix design is considered in terms of the desired concrete properties and the typical constituent materials required to achieve these properties, including discussion on admixtures and their effectiveness. Structural design focuses on crack control and considers flexural cracks, restraint cracks and the effects of temperature and shrinkage. Required construction practices are discussed, with attention given to detailing and joints. Post construction waterproofing treatments are reviewed in generic terms. The final section of the document is concerned with crack repairs.