Structural Characteristics of Unbound Aggregate Bases for Mechanistic Design

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Date

2001

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International Center for Aggregates Research

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International Center for Aggregates Research

Abstract

The next AASHTO Guide for the Design of Pavement Structures will make extensive use of mechanistic-empirical design principles, and may result in pavement designs with different layer thicknesses than are currently common. ICAR Research developed new testing protocols and materials characterization models that properly characterize unbound granular materials. Now, for the first time a structural model accurately characterizes unbound aggregate bases for evaluation during design against other types of layers in flexible and rigid pavements.

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