- Author
-
Son, B. C.
- Title
- Fire Endurance Test of a Fiber Glass Reinforced Polyester Double Wall Assembly. Final Report.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Sponsor
- Department of Housing and Urban Development, Washington, DC
- Report
-
NBSIR 73-168,
April 1973,
23 p.
- Distribution
- Available from National Technical Information Service
- Contract
- IAA-H-16-70
- Keywords
-
fire endurance
|
fire tests
|
glass fibers
|
glass reinforced polyester resins
|
Operation Breakthrough
|
party walls
- Abstract
- As a part of the evaluation of a housing system proposed under Operation BREAKTHROUGH a standard fire endurance test was performed on a double wall assembly comprising a load-bearing interdwelling (party) wall for single family attached housing. The test method was in accordance with the requirements of ASTM E 119, and the applied load was 700 pounds per linear foot (p1f) per wall. The test results are valid only for walls of similar construction loaded at or below the stress level developed by this loading. The double wall, representative of an interdwelling (party wall) separation, was made up of two identical parallel panels from two adjacent modules separated by a 2-1/4 in. air space. Each wall assembly contained glass fiber-reinforced polyester (GRP) sheet faces, glued to a corrugated GRP stiffener core. The GRP core members were painted with an intumescent type fire retardant paint and the core spaces were filled with mineral wool insulation. The fire endurance of the first (fire-exposed) wall was 27 min:25 sec. with the initial mode of ailure by structural collapse. The second (unexposed) wall failed at 42 minutes when a hot (charred) spot was observed on the unexposed surface.