SYNOPSIS

Concrete is probably the most widely used structural material in the World.  With the correct specification, good detailing, adequate attention to supervision, an acceptable level of workmanship and routine preventative maintenance, concrete structures can be very durable, reliable and cost-effective.  Unfortunately, in practice, they do not always perform as originally intended.  As a result, there has been a steady increase in the number of concrete structures that are in need of repair. It is anticipated that is set to rise in S. E. Asia given the major investment in infrastructure that has taken place during the last 25 or so years.

This presentation provides an overview of the different sections of EN 1504 “Products and systems for the protection and repair of concrete structures - Definitions, requirements, quality control and evaluation of conformity”. Using the results from an EU-funded survey of the performance of concrete repairs as a backdrop, EN 1504 part 9 “General principles for the use of products and systems” is reviewed the aim being to identify the fundamentally important approaches to achieving a successful concrete repair.

BIODATA OF SPEAKER

Professor Steve Garrity is a chartered civil, structural and highways engineer with over 35 years experience in the planning, design, supervision of construction and repair or strengthening of a variety of civil and structural engineering works. He gained much of this experience with consulting engineers and the bridge engineering department of a major UK public highway authority. Steve has also spent part of his career as an academic. He was the Head of the Department of Civil and Environmental Engineering at the University of Bradford, UK (1997 - 2002) where he later served as a Civil Engineering Consultant and Visiting Professor in Civil Engineering Design.

He is currently the Hoffman Wood Professor of Architectural Engineering at the School of Civil Engineering, University of Leeds, UK. His current academic work includes teaching at undergraduate and postgraduate levels and research into the performance of concrete and masonry structures. Since 2002 he has also been the principal of Garrity Associates, an independent firm of consulting civil and structural engineers. He has provided training and CPD courses for a wide range of construction professionals and has designed various new structures and repair or strengthening works for a variety of clients including government departments, local authorities, consulting engineers and design and build contractors. Most of his work has been associated with the repair or strengthening of concrete and masonry structures.

Steve is the recipient of the Chartered Institution of Highways and Transportation Babtie Premium Award (1992) and the Institution of Structural Engineers Cass Hayward Prize (1993), Sir Arnold Waters Medal (1995) and the Lewis Kent Award (2004). He was the co-recipient of the Institution of Civil Engineers Historic Bridge and Infrastructure Awards in 2004 (winner) and 2009 (commendation). He also serves on various learned society and professional body committees. He is currently chair of the UK Joint Board of Moderators (ICE, CIHT, IHE, IStructE), President of the International Masonry Society (2013-2015) and, since 2012, he has served as one of two international professors on the accreditation board of the Hong Kong Institution of Engineers.