High concrete durability is one of the factors that can significantly decrease maintenance costs of structures exposed to severe environmental conditions. The mechanical and durability properties of high performance concrete with added metakaolin are studied in this book. Ten percent of the cement in the concrete mixtures was replaced by the metakaolin. In the experimental part of the book, frost resistance and resistance to scaling due to de-icing salts was measured. It was found that the type of added metakaolin does not have a significant influence on the results. The frost resistance of...