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1998•JOURNAL OF PAVEMENT ENGINEERING JSCEOpen access

STRUCTURAL EVALUATION SYSTEM FOR AIRPORT ASPHALT PAVEMENTS WITH FWD

Yoshitaka HACHIYA, Takeharu WAKATSUKI, Nobuyoshi Ono

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Abstract

This paper deals with a nondestructive structural evaluation system for airport asphalt pavements with FWD (Falling Weight Deflectometer). The system was developed in accordance with the current airport asphalt pavement structural design method to be closely related with the overlay design method following the structural evaluation. The paper consists of three major parts. First, a structural parameter of each pavement component is assigned so that the measured deflections coincide with the calculated ones on the pavements designed in accordance with the current method. Second, the criterion on strains in both the surface course and subgrade, and the maximum deflection are established. Finally, the criterion are verified by investigating the deflections measured on various pavements.

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What this paper is about

This paper deals with a nondestructive structural evaluation system for airport asphalt pavements with FWD (Falling Weight Deflectometer). The system was developed in accordance with the current airport asphalt pavement structural design method to be closely related with the overlay design method following the structural evaluation. The paper consists of three major parts. First, a structural parameter of each pavement component is assigned so that the measured deflections coincide with the calculated ones on the pavements designed in accordance with the current method. Second, the criterion on strains in both the surface course and subgrade, and the maximum deflection are established. Finally, the criterion are verified by investigating the deflections measured on various pavements.

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Available abstract

This paper deals with a nondestructive structural evaluation system for airport asphalt pavements with FWD (Falling Weight Deflectometer). The system was developed in accordance with the current airport asphalt pavement structural design method to be closely related with the overlay design method following the structural evaluation. The paper consists of three major parts. First, a structural parameter of each pavement component is assigned so that the measured deflections coincide with the calculated ones on the pavements designed in accordance with the current method. Second, the criterion on strains in both the surface course and subgrade, and the maximum deflection are established. Finally, the criterion are verified by investigating the deflections measured on various pavements.

Key concepts: Falling weight deflectometer, Subgrade, Overlay, Deflection (physics), Asphalt, Structural engineering, Engineering, Pavement engineering

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