Please note that this is a scanned copy of a paper originally published in 1998, so the text is not as clear as in documents created as pdf files.

Thin mortar joint systems are used in various parts of Europe and in recent years aircrete producers have introduced the idea to the UK building market. So far in the UK, the system has been used mainly in commercial or industrial building projects. Based on the use of aircrete units with a rapid setting mortar, the thin joint system allows masonry construction at a high productivity rate without adversely affecting quality. Some aspects of thin joint construction differ from traditional masonry construction and they must be understood in order to gain the maximum benefits from the system. This Digest explains the technical background, properties and benefits of thin joint mortar systems.