Please note that this is a scanned copy of a paper originally published in 1991, so the text is not as clear as in documents created as pdf files.

Recommends the composition and use of a general purpose mortar and other specialised types of mortars, including those for resisting sulfate attack, in the light of changes to British Standards and impending changes from British to European standards. The increasing use of ready-mixed mortars is recognised. Describes sulfate and frost attack on mortar, their cause and effect, diagnosis and remedial measures. 8 pages.