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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.
Showing 1-5 of 13 Abstracts search results
Document:
SP80-12
Date:
July 1, 1983
Author(s):
Leslie Smith and Francis Placido
Publication:
Symposium Papers
Volume:
80
Abstract:
Conventional methods for the assessment of fire damaged concrete structures tend to be unreliable, since in post-real fire situations accurate estimates of the temperatures reached and the resulting distribution of damage are at present impossible. The thermoluminescence test gives a measure of thermal history of a sample of concrete. The residual compressive strength of various concretes has been shown to depend on the thermal exposure rather than just the maximum temperature reached in a fire. The correlation between the residual compressive strength of the concrete and the thermoluminescence signal remaining in small samples of quartz sand extracted from the concrete is described. This may allow a criterion to be established for the acceptance or rejection of fire exposed concrete where no obvious visual damage is apparent and would therefore provide us with information which would promote greater understanding of the residual condition of a fire damage concrete structure.
DOI:
10.14359/6596
SP80-11
E. Arioglu, K. Anadol, and A. Candogan
In this article, a fire which took place in the largest underground shopping center of Istanbul, Turkey and its after-fire repair and strengthening project prepared by the authors are reported. First the structural system of the shopping center is de-scribed and information is given on the fire. After-fire surveys and main features of the repair and strengthening project are then summarized. In the conclusions, general concepts related to fire effects on reinforced concrete structures and observations made during the study are discussed.
10.14359/6595
SP80-10
Armand Gustaferro
The author describes evaluations of structural damage caused accidental fires to buildings, bridges and outdoor industrial structure constructed of reinforced concrete, cast-in-place post-tensioned concrete or precast prestressed concrete. Techniques for evaluating structural damage include visual inspections, non-destructive testing, laboratory test of samples of steel and concrete, and load tests. Most damaged structure can be repaired by concrete restoration procedures, but it is sometime more economical to replace damaged portions of structures.
10.14359/6594
SP80-09
G.T. Suter
The paper deals with the case study of a fire involving a 600 m reinforced concrete roof slab area that was less than two days old at the time of the fire. Little is known about the effect of fire on extremely green concrete in actual structures, hence this paper represents a contribution to the state of know-ledge on this topic. The paper briefly introduces the structural layout and reviews the extent of the damage. The main sectionof the paper deals with material investigations which were carried out to assess the degree of damage to the reinforcing steel and the concrete. Results of the investigation show that the very young concrete was able to withstand the fire with only minor damage.
10.14359/6593
SP80-08
Karl Kordina, Ataman Haksever, and Ulrich Schneider
This paper describes the basic concept of a heat balance calculation on the principles of mass and energybalance equations. The most important parameters such as amount and distribution of combustible material, geometry of the fire compartment, thermal properties of the surrounding surfaces and ventilation conditions are all taken into-consideration. It is shown, that the calculation method developed provides good agreement to the temperature development in a fire compartment as measured in a number of tests.
10.14359/6592
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