COMPARISON OF WASHINGTON STATE UNIVERSITY TEST TRACK EXPERIMENTAL PAVEMENT RING NOS. 2 AND 3

UNTREATED, EMULSION TREATED, AND ASPHALT TREATED BASES WERE COMPARED FOR PERFORMANCE UNDER REPEATED LOADING ON A CIRCULAR SCALE MODEL TRACK. TEMPERATURE, STRAIN, MOISTURE, AND PRESSURE WERE MEASURED AND FAILURE PATTERN WAS NOTED. LOAD RESPONSE CHARACTERICTICS WERE COMPARED WITH RESPECT TO MOISTURE CONTENT, STATIC DEFLECTION, DYNAMIC DEFLECTION, VERTICAL STRESS, AND LONGITUDINAL AND TRANSVERSE STRAIN. SPRING FAILURE WAS ATTRIBUTED TO ALMOST COMPLETE SUBGRADE SATURATION; FALL FAILURE WAS RELATED TO A COMBINATION OF THERMAL AND MECHANICAL DISTRESS. THE TEST SHOWED THE SUPERIORITY OF TREATED BASES OVER THE UNTREATED BASES AND THIN SECTIONS, BOTH TREATED AND UNTREATED. RING NUMBER 3, BUILT UNDER IDEAL ENVIRONMENTAL CONDITIONS, LASTED TWICE AS LONG AS RING NUMBER 2, INDICATING THE IMPORTANCE OF THIS FACTOR TO PAVEMENT PERFORMANCE, EVEN WITH CONSTRUCTION CAREFULLY CONTROLLED UNDER RIGOROUS SPECIFICATIONS.

• Authors:
  • KRUKAR, M
  • Cook, J C
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 1971

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 1-30
• Serial:
  • Volume: 40

Subject/Index Terms

• TRT Terms: Aggregate gradation; Bituminous aggregates; Bituminous pavements; Emulsified asphalt; Failure; Flexible pavements; Load tests; Pavement performance; Test tracks; Thickness
• Uncontrolled Terms: Treatment
• Old TRIS Terms: Thickness design
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00206012
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 15 1972 12:00AM