Document Archives

Fire Tests of Precast Cellular Concrete Floors and Roofs

• ID:

  1821

• ESCSI:

  4940.013

• Author:

  Ryan, J.V. and E.W. Bender

• Publication Name:

  Monograph #45

• Type of Publication:

  Article

• Publisher:

  National Bureau of Standards

• Dated:

  1962

• Issue/Volume:

  April 12

• Other ID:

• Page(s):

  1-12

• Reference List:

  Y

• Abstract:

  The results of an investigation of lightweight, precast cellular concrete planks are given. Fire tests were made of two floor and five roof specimens made up of these planks. Variables included density of the cellular concrete, thickness and span of the planks, reinforcement, and cover for the latter. A steel beam encased in blocks of cellular concrete was included in one floor specimen. The flexural strengths of 14 individual planks were determined. The investigation showed fire endurances up to 2 hr for 6-in. thick slabs tested under load and up to 4 hr for other slabs not loaded. Estimates were made of the probable results to be expected for slabs of thicknesses other than those actually tested.