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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 12 Abstracts search results
Document:
SP92
Date:
June 1, 1986
Author(s):
Editor: T.Z. Harmathy
Publication:
Symposium Papers
Volume:
92
Abstract:
SP92 This publication is a compilation of 11 papers dealing exclusively with the analysis and repairability of concrete damaged in building fires. Due to the importance of concrete and its role in the structural performance of modern buildings, the ability to deal with fire-damaged concrete is a central issue. This symposium volume combines the knowledge and experience of fire safety experts from around the world. The topics covered include the following: experience of fires in concrete structures; fires during nuclear power plant construction; assessment and repair of fire-damaged concrete; residual properties of concrete heated rapidly; and residual strength of fire-exposed reinforced concrete columns. Evaluation and Repair of Fire Damage to Concrete will give the reader substantial insight into both the problems and solutions associated with concrete which has been exposed to high temperatures.
DOI:
10.14359/14049
SP92-01
A. K. Tovey and R. N. Crook
This paper outlines the procedures adopted in obtaining information on fire-damaged concrete structures since 1975. Details are given on the information received from questionnaires and a summary of the building and construction types, damage and repairs are tabulated. The general conclusion is that concrete structures behave well under fire conditions with the majority of cases being repairable.
10.14359/6509
SP92-02
M. Diaz-Llanos, V. Sanchez Velasco, and I. Cerezo Preysler
In some cases, it is necessary to evaluate and document structures which were subjected to fires during construction. Due to the lack of official regulations on the subject, the analyses and documentation on these incidences, when reported to the regulatory authorities, implied unconventional activities, both for the utility and the A/E. The paper describes several fires affecting nuclear power plant concrete structures. They were all caused by inadvertent human actions. The presence of highly combustible auxiliary cons-truction materials contributed to their propagation. It is recommended that the cost (purchase and installation) of these auxiliary materials be evaluated against the use of alter nate (noncombustible)ones before making any decision, sufficiently in advance to avoid costly and time-consuming changes that may affect a usually tight schedule. As a result of visual inspection, followed by "in situ" and laboratory tests and engineering analyses of the affected elements, some elements had to be demolished and reconstructed while others were found to be acceptable.
10.14359/6510
SP92-03
Peter Smith
A major three span highway bridge in Southern Ontario was 1nvYived in a construction fire while it was being widened 25 years ago. Concrete, ranging in age from 6 days to 20 years, in an abutment, the adjacent arch rings and spandrel columns was severely damaged. The structure is now revisited to assess the long term performance of the remedial works and to consider whether the investigation and repairs might have taken a different course if today's testing, analytical and repair techniques had been available then. The strengthening of the damaged arch springings and the shotcrete restored concrete sections exposed to a harsh environment have stood the test of time. The review of investigative and repair methods identifies advances made in recent years, and justifies long term confidence in o'lder procedures which are still in use.
10.14359/6511
SP92-04
A. K. Tovey
The purpose of this paper is to outline some of the proposed changes to the Concrete Society Technical Report 15 which is the most comprehensive UK document dealing with assessment and repair of fire-damaged concrete structures. The publication is being updated to take into account changes of practice and methods of assessment since 1978. Repair techniques other than Gunite are to be included with particular comment in respect to resin repairs.
10.14359/6512
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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.