LOAD TESTS ON POST-TENSIONED PAVEMENT SLABS

DATA ARE REPORTED ON STATIC LOAD TESTS CONDUCTED ON THREE CONCRETE SLABS WHICH HAD BEEN POST-TENSIONED BY THE USE OF STEEL STRANDS. THE PRINCIPAL VARIABLE WAS THE AMOUNT OF PRESTRESS. TWO SLABS HAD ONLY LONGITUDINAL PRESTRESS ONE OF 180 PSI AND THE OTHER OF 360 PSI. THE THIRD SLAB HAD BOTH 360 PSI LONGITUDINAL AND 70 PSI TRANSVERSE PRESTRESS. STATIC LOADS WERE APPLIED AT BOTH INTERIOR AND EDGE LOCA- TIONS WITH MAGNITUDES SUFFICIENT TO DETERMINE SLAB DEFLECT- ION & MOMENT CHARACTERISTICS IN BOTH THE ELASTIC & PLASTIC RANGE. MEASUREMENTS WERE MADE TO DETERMINE STRAIN AND DEFLECTION PROFILES OF THE SLAB AND THE PRESSURE ON THE SUB- GRADE. DETERMINATION WAS MADE OF THE EFFECT OF PRESTRESS LEVEL ON STRAINS AND DEFLECTIONS CAUSING BOTTOM AND TOP SURFACE CRACKING FOR EDGE AND INTERIOR LOADING, AND INTER- PRETATION WAS MADE OF THE SIGNIFICANCE OF THESE DATA RELATIVE TO THE CRITERION FOR FAILURE OF A PRESTRESSED PAVEMENT.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1964/60/60-008.pdf
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Christensen, A P
• Publication Date: 1964

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 95-115
• Monograph Title: Rigid Pavement Design 1963
• Serial:
  • Highway Research Record
  • Issue Number: 60
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Concrete; Deflection; Engineering moments; Failure; Measurement; Pavements; Posttensioning; Prestressed concrete; Prestressing; Slabs; Static loads; Strain (Mechanics); Testing
• Uncontrolled Terms: Characteristics; Criteria
• Old TRIS Terms: Moments; Strains
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00206210
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Mar 24 1994 12:00AM