thin-joint stack bonded masonry (courtesy of Mander Structural Design)
Department of Trade and Industry (DTI), with contributions from construction industry partners, including Hanson Brick Ltd., the Brick Development Association, Ibstock Brick Ltd., and Mander Structural Design.
- Prof. Ray Ogden (Department of Architecture), Research Co-ordinator, OISD:Technology
- Dr Bousmaha Baiche (Department of Architecture), Project Manager, OISD:Technology
- Dr Nicholas Walliman (Department of Architecture), OISD:Technology
- Additional input provided by Mr Tim Mander (Mander Structural Design), Mr Paul Rogatzki (Hanson Brick Ltd.), Gary Leighton (Ibstock Brick Ltd.), and Mr Michael S. Driver (the Brick Development Association). Monitoring was done by Mr Russ Wolstenholme (W S Atkins) on behalf of DTI.
- total grant value: £54,500
- time duration: 2002-2004
The main objectives of the research were to anglicise design guidance relating to thin-joint glued brickwork in use in mainland Europe. Whilst there is considerable interest in thin-joint glued brickwork amongst UK specifiers, uptake of the technology is inhibited by a lack of design guidance. This research collated and extended the body of information and presented it in a form for use by architects, engineers, contractors, brick producers and other stakeholders in the UK construction industry. The project dealt with only with ‘pre-competitive’ issues, and therefore benefited from the collaboration of a broad cross-section of the UK brick manufacturers.
The research was carried out in collaboration with architects, structural engineers, approval authorities, brick producers and stakeholders in the UK construction industry. The research programme included:
A literature review involving collation and review of relevant research projects carried out in mainland Europe, and collection of information on selected projects.Review of existing design codes and information gathered during the literature search, and consultation with sectors of the construction industry. It generated draft design guidance for the use of thin-joint glued brickwork, which includes sections on structural design, materials, site practice, construction detailing and specification.
Testwork schedule and review to produce indicative results to form a basis for general recommendations. The testing procedures included: compressive strength of mortar cube tests by OBU, water penetration tests by Hanson/ CERAM, Freeze/thaw tests by Hanson/CERAM, Wall tie tests by CERAM based on BS DD140: Part 1 1986, further tests on different wall ties by CERAM, flexural tests on wallettes at OBU, compressive tests of brickwork prisms at OBU, compressive tests of wall ties at OBU.
A workshop held at the Brick Development Association, involving about 40 leading stakeholders in the construction industry to both inform them about the research involved, and to gain feedback and expressions of interest.
The final report prepared after being peer-reviewed by several experts from both academia and the industry. The final draft was sent to 5 experts for their written comments which were considered and incorporated as necessary into the final report.
|The research project generated the following:|
A final report, with appropriate interpretations and recommendations, being presented as a culmination of the project. It is published by Oxford Brookes University.
New School of Architecture and Planning, University of the West of England (Courtesy of Mander Structural Design)
An information brochure produced for wide distribution within the construction industry. It consists of a guidance document on the use of thin-joint glued brickwork in the UK construction industry.
Applying thin-joint mortar on horizontal bed joints using specially developed hand-held pumped nozzles (Courtesy of Ankerplast)
A website containing information in a user-friendly format, with links to a range of relevant sites, including those of the participants and contributors to the research project.
Thin-joint stack bonded masonry (courtesy of Mander Structural Design)
Baiche, B. (2003), Thin-Joint Glued Brickwork, Construction Monitor, February 2003, p.3
Ogden, R., Baiche, B., Walliman, N. (2004), Better Brickwork, Research Forum, Volume 1, Issue 2, Oxford Brookes University.
Prof Ray Ogden
Tel: +44 (0)1865 483208
Dr Bousmaha Baiche
Tel: +44 (0)1865 483279