00757480

Component

https://doi.org/10.3141/1639-01

http://scholar.google.com...lion&publication_year=1998

Resilient modulus of base is an important parameter in the AASHTO pavement design method. However, the manner to determine this parameter is not well defined. Recent efforts in combining the resilient moduli from laboratory testing with those obtained in the field using nondestructive testing devices are presented. Laboratory tests were carried out in two stages. In the first stage, virgin materials from the quarry compacted to optimum moisture content were tested. In the second stage, similar base materials were retrieved from in-service roads. Specimens were prepared and tested at the corresponding field densities and moisture contents. Nondestructive tests were performed with the Falling Weight Deflectometer and the Seismic Pavement Analyzer. Based on tests on 10 different base materials from different parts of Texas, it was concluded that it may be difficult to directly compare moduli from laboratory and field tests; however, they can be combined for effective pavement design.

This paper appears in Transportation Research Record No. 1639, Recent Pavement Research Issues.

English

p. 1-11

1998

Transportation Research Record

0309065119

Figures (4) ; References (12) ; Tables (4)

Alternatives analysis; Base course (Pavements); Field tests; Laboratory tests; Modulus of resilience; Nondestructive tests

Texas

Texas

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

TRIS, TRB, ATRI

Dec 7 1998 12:00AM

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