ABSTRACT
The disparity in the durability of concrete facade elements is linked to a number of key factors, which include amongst others, exposure conditions, concrete composition, and the surface geometry and finish. In addition, movements are a common cause of defects and are often not adequately anticipated and allowed for in the design and construction. Where defects or deficiencies have developed, it is imperative that these are diagnosed and analysed to identify the cause or causes. Frequently, the diagnosis is easier than specifying the cure! In addition to technical requirements, commercial and site factors are important in successful repair projects, including repair quantities, minimising noise and disruption and access costs. The chapter examines important durability and performance factors related to concrete facade elements and the most important corresponding repair and protective works considerations. These are based on more than 30 years of involvement with concrete facades investigations and repair projects across Australia.
