Author O. PFEFFERMANN Studiebureau BTC and B.A. HASELTINE Jenkins and Potter Abstract A survey of damage to buildings carried out by the CSTC Belgium in 1965 showed that more than 40% of the problems were cracks in the masonry. This led to the development of Murfor, a...
Author S. OSMOND Building Research Establishment Abstract At present there is no formal national record of free-standing wall failures in the United Kingdom. BRE has recently produced guidance on the building of free-standing walls, and in the light of this it was...
Author ECKERD KOBER AND CHRJSTOPH JACOB Hebel AG, Germany. Abstract The use of larger units is well known to improve the productivity of laying. Thin layer mortar further improves economy. Two Hebel units are large format blocks (8/m2) and Jumbo blocks 998 x 623 or...
Author MARK WHITBY Whitby and Bird, Engineers, London Abstract The paper asks why are modern buildings like they are and why do we have such a problem making them like they were. Near the beginning of the century Corbusier eulogised the engineer and thought that...
Author WILLIAM B. FAIRLEY, Analysis and Inference Inc.Swarthmore, PA. ALAN J. IZENMAN Temple University, Philadelphia, PA. and A.RHETT WHITLOCK KCI Technologies,Inc.,Manassas,VA. Abstract Investigations of failures of materials or systems aim to determine the causes...
Author J.D.BASTON-PITT GB Geotechnics Limited Abstract Impulse radar is a non-destructive method of investigation for old buildings. The paper describes the principles and the role of the technology in locating and identifying such characteristics as thickness of...
Author W.A.FERGUSON, Building Research Establishment. Abstract The screw pull-out test is being developed to provide a simple, inexpensive method of assessing the quality of both building mortar and units used in masonry. The test measures the shear strength of a...
Author R. CERIONI, G. DONIDA, A. FARINA and A. SPAGNOLI University of Parma Abstract Preserving historical and cultural monuments and planning possible restoration makes investigations of the structural damage a priority in order to provide a diagnosis of the overall...
Author A.D. BUENO, P.C. PHILIPPI, R. LAMBERTS Federal University of Santa Catarina, Brazil Abstract Moisture is responsible for mould growth and affects the mechanical resistance, aesthetics and durability of building materials. Permeability to water vapour and heat...
Author J.A. TINKER, University of Leeds and A.O’ROURKE. The Nottingham Trent University Abstract Although the UK Building Regulations state that the mortar joint can be ignored when the U-value of a wall is calculated, by doing this, the U-values quoted for the...
Author W.R.MILLARD Marley Building Materials Abstract Data from major European manufacturers of AAC are used together with test results obtained on their materials in NAM AS accredited laboratories in UK to determine the parameters which influence thermal conductivity...
Author H.E. JENSEN Technical University of Denmark Abstract This investigation was undertaken to show the influence of an unloaded leaf on the load-carrying capacity of a cavity wall and the magnitude of that influence. Tests on 23 full-scale cavity and single walls...
Author J.P. FORTH and J.J. BROOKS University of Leeds Abstract Further test data have been obtained on the influence of geometry on creep and moisture movement strain of clay brickwork watts and piers constructed from Fletton, Dorket Honey gold and Nori clay units....
Author D. LENCZNER and R. J. HARVEY University of Wales, Cardiff Abstract The creep behaviour of large scale concrete block masonry specimens under constant axial stress was investigated experimentally. A single type oj block and two strengths oj mortar were tested,...
Author J.J. BROOKS and J.P. FORTH University of Leeds Abstract Test data are reported for 160-day creep and shrinkage of 2-brick wide x 13-course high single leaf clay brickwork constructed from six types of unit having strengths ranging from 30 – 120N/mm2 and a...
Author B. MIDDENDORF and D. KNOFEL Laboratory for Chemistry of Construction Materials (BCS) University of Siegen Abstract The fabric of many historic brick buildings is in part heavily damaged. The paper gives mainly chemical and mineralogical results of analyses of...
Author MYRIAM OLIVIER and ZEKERIA EL GHARBI Laboratoire Geomateriaux de I’ENTPE, France. Abstract Since 1982 the Geomaterial Laboratory of ENTPE has carried out a scientific study of earth architecture in order to improve making techniques and to better...
Author DAVID, M. F. ORR. University College Cork and MARTIN P. MANNION, Regional Technical College. Cork Abstract It is difficult to obtain contact between block and mortar over the full width of the bed joints in masonry of solid concrete blocks laid flat on face....
Author HUMBERTO R. ROMAN and FRANCISCO T. NEGREIROS Universidade Federal de Santa Catarina, Brazil Abstract The paper describes part of a research project into the addition of either pulverized fuel ash (pfa) or furnace-bottom ash (fba) to clay for brick production....
Author BRUCE A. WIDEMAN Lafarge Corporation, Michigan. Abstract The 1991 edition of the Uniform Building Code (UBC)[1], the most commonly referenced of three model building codes in the United States, contains a specification for mortar cement. This, while similar to...
