- Author
- Carino, N. J. | Steckler, K. D. | Mclane, R. A. | Seiler, J. F., Jr.
- Title
- Mechanical Properties of Samples of a 'Subliming' Fire-Barrier Panel Material as a Function of Temperature.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Sponsor
- Nuclear Regulatory Commission, Washington, DC
- Report
- LETTER REPORT, July 1996, 130 p.
- Distribution
- NOT AVAILABLE: from National Technical Information Service
- Keywords
- building technology | fire barriers | mechanical properties | temperature | tests
- Identifiers
- tensile strength tests; compressive strength tests; in-plane shear strength tests; dynamic modulus of elasticity; flexural tests
- Abstract
- At the request of the U.S. Nuclear Regulatory Commission, the mechanical properties of specimens made from a fire barrier panel material were determined. The primary objectives of this testing program were to: [*] Determine the average value of various mechanical properties; [*] Investigate the temperature dependence of the mechanical properties; [*] Examine the variability of the mechanical properties; and [*] Compare the measured properties with values reported by others. In the absence of standard test methods for this type of material, existing ASTM test methods for other materials were adapted for this testing program. The tensile, compressive and flexural strength tests were based on ASTM D 1037 (Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials). The shear strength was measured using the technique described in ASTM D 3846 (Test Method for In-Plane Shear Strength of Reinforced Plastics) but with a larger test specimen. The dynamic modulus was measured nondestructively using the impact-resonance method given in ASTM C 215 (Test Method for Transverse, Longitudinal, and Torsional Frequencies of Concrete Specimens). An estimate of the static modulus of elasticity was obtained from the compressive strength test data. Where possible, the mechanical properties obtained in this study were compared with those reported by the manufacturer and another testing laboratory. The flexural strength, tensile strength and the estimated static modulus of elasticity measured in this study were lower than those reported by the manufacturer. The effects of temperature on the tensile strength and estimated static elastic modulus were similar to those reported by the manufacturer, but the flexural strength decreased with temperature more than reported by the manufacturer.