FIRE ENDURANCE OF CONCRETE SLABS AS INFLUENCED BY THICKNESS, AGGREGATE TYPE, AND MOISTURE

THIS IS THE FIRST OF A SERIES OF REPORTS ON THE FIRE ENDURANCE OF CONCRETE SLABS AS DETERMINED FROM FIRE TESTS OF 3 X 3-FT SPECIMENS. THE FIRE ENDURANCE IN THESE TESTS WAS BASED ON THE ASTM CRITIERIA FOR TEMPERATURE RISE OF THE UNEXPOSED SURFACE. IN THE TEST PROGRAM REPORTED HEREIN, VARIABLES INCLUDED SLAB THICKNESS (1 1/2 TO 7 IN.), AGGREGATE TYPE (CARBONATE, SILICEOUS, AND STRUCTURAL LIGHTWEIGHT), AND MOISTURE CONDITION OF THE CONCRETE (NATURAL AND KILN DRYING). RESULTS OF TESTS OF SMALL SPECIMENS CORRELATE REASONABLY WELL WITH THOSE OF FULL-SCALE SPECIMENS AND CAN BE USED TO DETERMINE MINIMUM THICKNESSES REQUIRED FOR FIRE ENDURANCES. A METHOD IS SUGGESTED FOR ADJUSTING RESULTS OF FIRE TESTS OF SPECIMENS MOISTURE CONDITIONED IN A NONSTANDARD MANNER. /PCA/

• Authors:
  • Abrams, M S
  • Gustaferro, A H
• Publication Date: 0

Media Info

• Serial:
  • Portland Cement Assoc R & D Lab Bull
  • Issue Number: 0

Subject/Index Terms

• TRT Terms: Aggregates; Concrete; Fire resistance; Fires; Lightweight concrete; Moisture content; Slabs; Testing; Thickness
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00213656
• Record Type: Publication
• Source Agency: Portland Cement Association
• Report/Paper Numbers: No 223
• Files: TRIS
• Created Date: Jun 1 1970 12:00AM