RESEARCH ON BITUMINOUS PAVEMENTS USING THE SAND EQUIVALENT TEST

THIS TWO-PART PROJECT INCLUDED (1) A DETAILED STUDY OF THE SAND EQUIVALENT TEST INCLUDING INVESTIGATIONS OF TYPES AND AMOUNTS OF FINES AND WASHING OF AGGREGATES, (2) STUDIES OF PERFORMANCE CHARACTERISTICS OF ASPHALTIC MIXTURES AND THEIR RELATIONSHIP TO THE SAND EQUIVALENT VALUES OF THE AGGREGATES USED FOR THESE MIXTURES. DATA REVEALED THAT HVEEM'S RECOMMENDED MINIMUM SAND EQUIVALENT VALUES FOR ASPHALTIC MIXTURES MAY BE CONSERVATIVE. IN COMBINATION WITH GRADUATION AND OTHER SPECIFICATION REQUIREMENTS, HVEEM'S VALUES INSURE THE USE OF HIGH QUALITY MATERIALS, BUT HIS VALUES WOULD RULE OUT THE USE OF MANY NEW MEXICO AGGREGATES WHOSE PERFORMANCE SEEMS TO BE ACCEPTABLE. MOREOVER, THESE STUDIES PROVIDED AN EXTRACTION PROCESS THAT YIELDED A GOOD CORRELATION BETWEEN SAND EQUIVALENT VALUES OF AN AGGREGATE BEFORE AND AFTER THE EXTRACTION OF ASPHALT.

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  • Accession Number: 00211320
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 19 1994 12:00AM