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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Strategies and Implementation of Structural Repairs to High Rise Housing Blocks in Hong Kong
Author(s): R. A. Bates, M. V. Harley, G. G. Payne, and R. A. M. Watkins
Publication: Special Publication
Appears on pages(s): 789-804
Keywords: concrete cores; durability; high-rise buildings; inspection; maintenance; repairs; research; residential housing; spalling; strengthening; Construction
Abstract:The Hong Kong Housing Authority maintains an extensive portfolio of property that includes over 700,000 flats. In 1985 it embarked on a major structural investigation of 828 housing blocks, and a US $200 million repair program. The investigation has involved over one million visual inspections, testing of 30,000 concrete cores and an extensive nondestructive testing program. It was necessary to develop methods of appraising low strength concrete structures, and unique strengthening and repair techniques. The paper examines the development and implementation of an investigation and maintenance strategy that takes into consideration the condition, life expectancy, and environment of each building. The paper focuses on the way priorities were determined and research undertaken. It discusses the public relations and management of a program that has required the strengthening of 92 high-rise buildings, and 400,000 mý of spalling repairs over a six year period.
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