LABORATORY INVESTIGATION OF MINERALOGICAL, CHEMICAL AND PHYSICAL PROPERTIES OF LIMESTONE AGGREGATES

THE INTRINSIC PROPERTIES OF LIMESTONE AGGREGATES WERE INVESTIGATED WITH THE ULTIMATE PURPOSE OF DETERMINING THEIR EFFECT ON THE BEHAVIOR OF CONCRETE AND BITUMINOUS MIXES MADE WITH THESE AGGREGATES. THE DATA PRESENTED DO NOT PERTAIN TO TESTS FOR BEHAVIOR OF THE MIXES; THESE TESTS ARE IN PROGRESS. FOUR QUARRIES SELECTED FOR A DISTINCT RANGE IN QUALITY, AS INDICATED BY PAVEMENTS IN SERVICE, WERE SAMPLED AT ONE-FOOT VERTICAL INTERVALS. THE SAMPLES WERE THOROUGHLY TESTED, AND FOUR PRECISE LOCATIONS IN EACH QUARRY REPRESENTING EXTREMES IN PHYSICAL, CHEMICAL, AND MINERALOGICAL PROPERTIES WERE DESIGNATED FOR CONCRETE AND BITUMINOUS MIXES. IN ADDITION TO STANDARD SPECIFICATION TESTS, THESE AGGREGATES WERE ANALYZED FOR CLAY MINERAL CONTENT, AMOUNT OF INSOLUBLE MATERIAL, AND CHEMICAL COMPOSITION. THEIR POROSITY AND PERMEABILITY WERE DETERMINED WITH EMPHASIS ON "EFFECTIVE" OR USEFUL POROSITY AND TOTAL POROSITY. VERTICAL AND HORIZONTAL THIN SECTIONS WERE MADE OF EVERY LEVEL TO REVEAL STRUCTURE. ABSOLUTE SPECIFIC GRAVITY WAS DETERMINED. STRESS-STRAIN ANALYSES WERE MADE FROM COMPRESSION TESTS ON LIMESTONE CYLINDERS AND FLEXURAL TESTS ON LIMESTONE BEAMS. /AUTHOR/

  • Supplemental Notes:
    • Vol 19, No 6, PP 15-24, 19 FIG
  • Authors:
    • Young, J L
  • Publication Date: 1949-6

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  • Accession Number: 00217897
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 28 1972 12:00AM