MEASURING THERMAL EXPANSION OF LIME-FLY ASH-AGGREGATE COMPOSITIONS USING SR-4 STRAIN GAGES

THIS REPORT PRESENTS THE RESULTS OF A LABORATORY INVESTIGATION ON USE OF SR-4 STRAIN GAGES FOR EVALUATION OF THE THERMAL EXPANSION OF LIME-FLY ASH-AGGREGATE COMPOSITIONS . THE STUDY WAS INITIALLY CONCERNED WITH THE SELECTION OF THE MOST SUITABLE GAGES, THEIR APPLICATION, WATERPROOFING, AND THE INTERPRETATION OF THE RESULTS. BEAMS /12 IN. LONG, 3- X 3-IN. SECTION/ WERE PREPARED WITH THE SAME AGGREGATE BUT WITH DIFFERENT PERCENTAGES OF LIME AND/OR FLY ASH. OTHER BEAMS WERE PREPARED WITH THE SAME PERCENTAGES OF LIME AND FLY ASH BUT USING AGGREGATES WITH DIFFERENT AMOUNTS OF FINES. THESE BEAMS WERE SUBJECTED TO A TEMPERATURE CHANGE OF APPROXIMATELY 200 F /FROM -25 F TO 175 F/. SIX DIFFERENT TYPES OF STRAIN GAGES WERE APPLIED TO THE BEAMS AND THE EXPANSION CAUSED BY THE TEMPERATURE CHANGE WAS MEASURED. A STEEL BEAM OF KNOWN THERMAL PROPERTIES WAS USED FOR A THERMAL EXPANSION REFERENCE IN AN ACTIVE GAGE-DUMMY GAGE SYSTEM OF TEMPERATURE COMPENSATION. THE INFLUENCE OF DRY DENSITY, PERCENT OF LIME AND/OR FLY ASH, AND PERCENT OF FINES IN THE AGGREGATE PARAMETERS ON THE COEFFICIENT OF THERMAL EXPANSION IS ALSO DISCUSSED. IT HAS BEEN FOUND FOR EXAMPLE THAT THE COEFFICIENT OF EXPANSION INCREASES WITH AN INCREASE IN THE PERCENT OF LIME, OTHER VARIABLES REMAINING CONSTANT. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1963/29/29-007.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:
  • Miller, Richard H
  • Couturier, Robert R
• Publication Date: 1963

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 83-94
• Monograph Title: Stabilization of soil with lime and fly ash
• Serial:
  • Highway Research Record
  • Issue Number: 29
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Beams; Calcium oxide; Dry density; Fines (Materials); Fly ash; Laboratory tests; Lime fly ash; Percent; Strain gages; Temperature; Thermal expansion
• Old TRIS Terms: Sr-4 strain gages
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00217425
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Dec 12 1994 12:00AM