00824539

Component

https://doi.org/10.3141/1778-09

http://scholar.google.com...dson&publication_year=2001

A method for determining American Association of State Highway and Transportation Officials (AASHTO) drainage (m) coefficients for flexible pavements is presented. In essence, m coefficients were developed as ratios of the layer coefficients of the AASHO road test granular base material under any given drainage and climate condition to the layer coefficient of the road test base material under road test site conditions. The layer coefficients were calculated from resilient moduli determined for various conditions by use of elastic layered analysis. The moduli were varied by changing subgrade and base moisture conditions for any given time of year. The base material moisture sensitivity (effect on theta model constants k sub 1 and k sub 2) was determined, in part, by the resilient modulus laboratory testing of granular materials. The result of the preceding analysis was the creation of a set of tables that guide the designer to a choice of m coefficients. The new m values can be used to provide a rational measure of the influence of pavement drainage on pavement performance.

This paper appears in Transportation Research Record No. 1778, Design and Rehabilitation of Pavements 2001.

English

p. 73-80

2001

Transportation Research Record

0309072425

Figures (2) ; References (19) ; Tables (5)

Base course (Pavements); Drainage coefficient (Pavements); Flexible pavements; Granular materials; Laboratory tests; Layer coefficient (Pavements); Modulus of resilience; Pavement performance; Subgrade (Pavements); Tables (Data)

AASHO Road Test; American Association of State Highway and Transportation Officials

Moisture sensitivity

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB

Feb 8 2002 12:00AM

• ANALYSIS OF IN SITU HORIZONTAL JOINT MOVEMENTS IN RIGID PAVEMENTS
• BENEFITS AND COSTS OF JOINTED PLAIN CONCRETE PAVEMENT DESIGN FEATURES
• CHARACTERIZATION AND MODELING OF AXIAL SLAB-SUPPORT RESTRAINT
• CHARACTERIZATION OF ASPHALT CONCRETE LAYER INTERFACES
• CHARACTERIZATION OF STIFFNESS PARAMETERS IN DESIGN OF CONTINUOUSLY REINFORCED AND JOINTED PAVEMENTS
• CONSTRUCTION AND PERFORMANCE OF ALTERNATIVE CONCRETE PAVEMENT DESIGNS IN WISCONSIN
• DESIGN, CONSTRUCTION, AND MAINTENANCE GUIDELINES FOR POROUS ASPHALT PAVEMENTS
• DEVELOPMENT OF RAPID SOLUTIONS FOR PREDICTION OF CRITICAL CONTINUOUSLY REINFORCED CONCRETE PAVEMENT STRESSES
• EARLY AGE STRESSES AND DEBONDING IN BONDED CONCRETE OVERLAYS
• EFFECTS OF INTERFACE CONDITION AND HORIZONTAL WHEEL LOADS ON THE LIFE OF FLEXIBLE PAVEMENT STRUCTURES
• FLEXIBLE PAVEMENT DESIGN IN MICHIGAN: TRANSITION FROM EMPIRICAL TO MECHANISTIC METHODS
• GRANULAR OVERLAYS ON LOW-VOLUME ROADS IN WASHINGTON STATE: STRUCTURAL AND PERFORMANCE CHARACTERISTICS
• LAYER THICKNESS VARIABILITY FOR FLEXIBLE PAVEMENTS IN NORTH CAROLINA
• MEASURING RESILIENT MODULUS OF GRANULAR MATERIALS IN FLEXIBLE PAVEMENTS
• MODELING OF JOINTED PLAIN CONCRETE PAVEMENT FATIGUE CRACKING IN PAVESPEC 3.0
• OVERLAY PERFORMANCE IN CANADIAN STRATEGIC HIGHWAY RESEARCH PROGRAM'S LONG-TERM PAVEMENT PERFORMANCE STUDY
• PROPAGATION MECHANISMS FOR SURFACE-INITIATED LONGITUDINAL WHEELPATH CRACKS (WITH DISCUSSION AND CLOSURE)
• REPAIR OF ULTRATHIN WHITETOPPING PAVEMENTS
• THIN BONDED CONCRETE OVERLAYS IN ILLINOIS: PRELIMINARY REPORT ON PERFORMANCE
• USE OF LONG-TERM PAVEMENT PERFORMANCE DATA FOR CALIBRATION OF PAVEMENT DESIGN MODELS
• USING PAVEMENT AS SOLAR COLLECTOR: EFFECT ON PAVEMENT TEMPERATURE AND STRUCTURAL RESPONSE
• VALIDATION OF HIPERPAV FOR PREDICTION OF EARLY-AGE JOINTED CONCRETE PAVEMENT BEHAVIOR