00968510

Component

https://doi.org/10.3141/1860-05

http://scholar.google.com...fman&publication_year=2003

A direct and simple method (YONAPAVE) for evaluating the structural needs of flexible pavements is presented. It is based on interpretation of measured falling-weight deflectometer (FWD) deflection basins using mechanistic and practical approaches. YONAPAVE estimates the effective structural number (SN) and the equivalent subgrade modulus independently of the pavement or layer thicknesses. Thus, there is no need to perform boreholes, which are expensive, time-consuming, and disruptive to traffic. Knowledge of the effective SN and the subgrade modulus together with an estimate of the traffic demand allows the determination of the overlay required to accommodate future needs. YONAPAVE's simple equations can be solved using a pocket calculator, making it suitable for rapid estimates in the field. The simplicity of the method, and its independence from major computer programs, make YONAPAVE suitable for estimating the structural needs of a road network using FWD data collected on a routine or periodic basis along network roads. YONAPAVE can be used with increased experience and confidence as the basis for nondestructive testing structural evaluation and overlay design at the project level.

This paper appears in Transportation Research Record No. 1860, Pavement Assessment, Monitoring, and Evaluation 2003.

English

p. 41-47

2003

Transportation Research Record

0309085977

Figures (7) ; References (14) ; Tables (4)

Deflection; Design; Equations; Estimating; Falling weight deflectometers; Flexible pavements; Modulus of elasticity; Nondestructive tests; Overlays (Pavements); Pavement structural numbers; Subgrade (Pavements)

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

TRIS, TRB, ATRI

Jan 8 2004 12:00AM

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• USING THE ASPHALT PAVEMENT LAYER CONDITION ASSESSMENT PROGRAM: CASE STUDIES
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