Title: Fire tests of hollow-core specimens with and without roof insulation
Date: January-February, 1976
Volume: 21
Issue: 1
Page number: 40-49
Author(s): Melvin S. Abrams
https://doi.org/10.15554/pcij.01011976.40.49

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Abstract

Fire tests were conducted on 8-in.hollow-core specimens 40x48-in. in plan. Specimens were tested with and without roof insulation to determine the effect of the insulation material on the temperature of  the strand. Specimens were oriented horizontally with the central 33 x 33-in, area of the underside of each specimen exposed to fire. No load was applied. Strand temperatures were monitored for more than   3 hr. Test results indicate that strand temperatures were not significantly affected by the presence of the roof insulation. 

References

1. "Report on Roof and Ceiling Construction Consisting of Prestressed Pretensioned Concrete Double-Stemmed Units and Various Insulations Materials," U. L. File R4123-13, PCI JOURNAL, V. 11,  No. 5, October, 1966, pp. 17-35.

2. Monfore, G. E., "A Small Probe- Type Gage for Measuring Relative Humidity," PCA Research Department Bulletin 160; see also Journal of the PCA Research and Development Laboratories, V. 5,  No. 2, May 1963, pp. 41-47.

3. "Standard Methods of Fire Tests of Building Construction and Materials," ASTM Designation: E119-73, American Society for Testing and  Materials, Philadelphia, Pa.