Historic concrete structures in New Zealand: overview, maintenance and management

Source: NZ Dept. of Conservation
"Early concrete structures form an important part of New Zealanders’ cultural heritage. This handbook describes the historical development of concrete and its properties, and outlines the background to early concrete structures, concentrating on the early use of concrete (up to the 1940s) as a building material in New Zealand. It identifies characteristic defects and patterns of deterioration in the material, and explains how these may be recognised and described."