Categories: Proceedings 02, Proceedings of Conferences
Author K. KIRTSCHIG and W.-R. METJE University of Hannover, Federal Republic of Germany Abstract Chases and recesses reduce the strength of masonry, by how much is not sufficiently known. Tests have enabled the authors to determine the extent of different influences...
Categories: Proceedings 02, Proceedings of Conferences
Author M. H. MALEK and A. W. HENDRY University of Edinburgh Abstract The state of stress immediately under a concentrated load is one of biaxial compression, and as a result, the masonry can withstand a contact stress in excess of its uni-axial compressive strength....
Categories: Proceedings 02, Proceedings of Conferences
Author S. K. ARORA Building Research Establishment, Garslon Abstract While apparently taking into account both the position of a concentrated load and its area in relation to wall area, the clauses in BS562S:Parl 1 are inconsistent and do not model the behaviour...
Categories: Proceedings 02, Proceedings of Conferences
Author M. R. A. KHALIL*. N. G. SHRIVE** and P. AMENY** *University of British Columbia, and **University of Calgary Abstract Three-dimensional finite element analysis has been used to determine the stress distribution in walls constructed of 190 x 90 x 390 mm two-hole...
Categories: Proceedings 02, Proceedings of Conferences
Author BRIAN HOBBS and STUART J WRIGHT University of Sheffield Abstract This paper reports on a research programme aimed at assessing the possibility of using ultrasonic pulse velocity testing techniques for the evaluation of both new and existing masonry structures....
Categories: Proceedings 02, Proceedings of Conferences
Author MARK PATAMIA National Concrete Producers’ Association, Canada Abstract The background to revisions in compressive strength specifications for concrete block is examined. The revisions have removed apparent anomalies, improved material utilization and...
Categories: Proceedings 02, Proceedings of Conferences
Author R. C. DE VEKEY Building Research Establishment, Garston. Abstract The paper covers some of the history of the development of wall ties and cavity walls in Britain, the research which has established the performance requirements and characteristics of wall ties...
Categories: Proceedings 02, Proceedings of Conferences
Author J. F. GOODWIN British Ceramic Research Limited Abstract The mechanism of sulphate attack in brickwork is reviewed and the occurrence and concentration of sulphates in soils and groundwater is considered. Calcium silicate bricks are shown to be resistant to...
Categories: Proceedings 02, Proceedings of Conferences
Author R. L. DAY*, A. HUIZER* and J. M. MORALES** *University of Calgary **University de San Carlos de Guatemala, Guatemala Abstract The high cost of building materials in Guatemala has resulted in housing prices which are beyond the reach of the majority of the...
Categories: Proceedings 02, Proceedings of Conferences
Author J.A. TINKER University of Leeds Abstract Concrete blocks incorporating lightweight aggregates are well known for their loadbearing and thermal insulating properties. Mix proportions are often changed to maintain or alter block strength properties with little...
Categories: Proceedings 02, Proceedings of Conferences
Author J. A. TINKER University of Leeds Abstract Using scanning electron microscopic analysis, the pore distribution and structure of several lightweight aggregates was investigated. Three structurally different types of aggregates were incorporated into lightweight...
Categories: Proceedings 02, Proceedings of Conferences
Author K. R. LUCKIN*. A. J. JONES** and G. ENGLEDOW*** *Celcon Limited **Acoustical Investigation & Research Organisation Ltd. ***Thermalite Limited Abstract Site data have demonstrated that low density, aerated concrete can provide satisfactory sound insulation...
Categories: Proceedings 02, Proceedings of Conferences
Author J. J. BROOKS and P. R. BINGEL Abstract Shrinkage of various shapes of calcium silicate brickwork and lightweight concrete blockwork is considered in terms of composite model theory. By measuring the shrinkage of brick, block and mortar samples, a reasonable...
Categories: Proceedings 02, Proceedings of Conferences
Author J. J. BROOKS and P. R. B1NGEL Leeds Polytechnic Abstract One-year data are presented for horizontal and vertical moisture movements of unrestrained walls and piers built from two weeks old Fletton bricks. Whereas horizontal movements are small, vertical...
Categories: Proceedings 02, Proceedings of Conferences
Author D. LENCZNER and P. DAVIS University of Wales Institute of Science and Technology Abstract This paper discusses the loss of prestress in members which have been previously prestressed for some length of time and have subsequently been post-tensioned to a higher...
Categories: Proceedings 02, Proceedings of Conferences
Author P. DAVIS and D. LENCZNER University of Wales Institute of Science and Technology Abstract In reinforced concrete framed buildings with brickwork panel infill axial stresses can build up within the wall panel for which it was not designed, due to the concrete...
