BITUMINOUS STABILIZATION LABORATORY STUDY

THE PROJECT WAS INITIATED IN AN ATTEMPT TO DEVELOP A PROCEDURE USING STANDARD LABORATORY TESTS FOR DESIGNING SOIL-BITUMINOUS MIXTURES FOR USE AS A SUBBASE OR SUBGRADE MATERIAL ON HIGHWAY CONSTRUCTION PROJECTS. HVEEM STABILOMETER AND COHESIOMETER AND UNCONFINED COMPRESSION TESTS WERE EVALUATED FOR THIS PURPOSE USING SEVERAL TYPES OF SOILS AND BITUMINOUS MATERIALS. STUDIES WERE CONDUCTED TO DETERMINE MIXING AND MOLDING PROCEDURES, FOR DETERMINING THE DESIRED MIXING MOISTURE CONTENTS AND FOR CONDITIONING THE SPECIMENS BEFORE TESTING. IT WAS CONCLUDED THAT: (1) SUBMITTING SPECIMENS TO A 3-DAY OVEN CURE AT 140 F RESULTED IN MAXIMUM STRENGTH, (2) A 4-DAY IMMERSED SOAK AND 6 CYCLES OF FREEZE-THAW FOLLOWING OVEN CURE RESULTED IN MINIMUM STRENGTH AND MAXIMUM WATER ABSORPTION, AND (3) THE BEST METHOD OF PREDICTING THE MIXING MOISTURE CONTENT WHICH WILL PRODUCE SPECIMENS WITH MAXIMUM STABILOMETER AND COHESIOMETER STRENGTH IS TO DETERMINE THE MOISTURE CONTENT WHICH PRODUCES MAXIMUM STRENGTH IN UNTREATED SPECIMENS. THE STABILOMETER SEEMS TO BE SATISFACTORY FOR DESIGNING SOIL-BITUMINOUS MIXTURES FOR ALL SOIL TYPES; THE USE OF THE COHESIOMETER SHOULD BE LIMITED TO USE WITH PLASTIC SOILS; THE UNCONFINED COMPRESSION TEST SHOULD NOT BE USED FOR THIS PURPOSE.

  • Supplemental Notes:
    • InvestigatiON NO 608, 37 PP
  • Corporate Authors:

    Minnesota Department of Highways

    /Office of Materials
    ,   United States 

    Ohio State University, Columbus

    Engineering Experiment Station, 2070 Neil Avenue
    Columbus, OH  United States  43210
  • Authors:
    • Korfhage, G R
  • Publication Date: 0

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Filing Info

  • Accession Number: 00232739
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Jan 12 1970 12:00AM