Maintenance of aged concrete structures of the Hong Kong Housing Authority

Author(s): H.W. Pang, Bosco Au, K.C. Lau
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 321- 322
Total Pages: 2
Language: English

Abstract: 
The Hong Kong Housing Authority (HKHA) maintains a stock of about 720,000 flats in more than 1,100 reinforced concrete buildings with the oldest ones aged over 50. Driven by the policy to sustain the buildings as far as possible, HKHA launched in 2005 the Comprehensive Structural Investigation Programme (CSIP) to probe into the structural conditions of the older buildings and establish durable repair to prolong their service life. Through the investigations in the past years, considerable experiences were garnered relating to the diagnosis of concrete defects as well as establishment of repair solutions with the deployment of state-of-the-art techniques to effectively cope with the structural problems in aged buildings. This paper outlines the structural investigation methodology, and depicts the techniques of diagnosing root causes of concrete defects as well as the repair strategy and repair solutions for the aged buildings taking into durability, practicability, cost-effectiveness and environmental considerations. Illustrative examples of tailor-made repair methods are also given and discussed.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00