Information Paper 2/98 Mortars for blockwork: improved thermal performance

Publication Year

1998

Document Status

Archived

Abstract

The introduction of more stringent thermal building regulations may increase the use of lightweight and thin layer mortars which reduce the thermal transmittance of walling (blockwork). Little experimental information is available, so data have been collected both from relevant literature and from testing mortar samples and blockwork wallettes. The use of lightweight and thin layer mortars seems unlikely adversely to affect the strength of autoclaved aerated concrete masonry significantly, except that the flexural strength of lightweight blockwork is likely to be lower than that of traditional masonry. For cavity wall construction, two mortar types have to be used both with lightweight and with thin layer mortars. Traditional masonry skills can be used for building cavity walls with lightweight mortars, but care needs to be taken on site because of the need to use two mortar types. The use of thin layer mortar for cavity wall construction, however, involves a non-traditional construction process.

Document History

Whilst this publication can still be purchased some of the information in it has been superseded by more recent research and standards. The BRE Group does not accept any responsibility whatsoever for any loss or damage, including - without limitation - indirect or consequential loss or damage arising from use, or loss of use, of data or profits arising out of, or in connection with, the use of this document.

Author

Stupart, A. W. and Skandamoorthy, J. S.

ISBN

9781860811968

Publisher Information