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Title:

LABORATORY EVALUATION OF GEOSYNTHETIC-REINFORCED PAVEMENT SECTIONS

Accession Number:

00667724

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309055202

Abstract:

Preliminary experimental and analytical investigations were conducted to evaluate the performance of pavements with and without geotextile or geogrid reinforcement materials. Four pavement sections were tested: one unreinforced section that served as a control and three sections reinforced with either one of two geotextiles or a geogrid. The pavement sections were constructed to model a typical secondary road in Virginia built over a weak granular (silty sand) subgrade material. Loading of the pavement sections was accomplished through the use of a computer-controlled pneumatic system that delivered approximately 55 kPa through a 30-cm rigid plate at a frequency of 0.5 Hz. The resulting displacement of the pavement surface was monitored by an array of linear variable displacement transformers. The performance of each pavement section was evaluated as a function of the applied number of cycles, the resulting surface deflection profile, and the layer deflection profile. It was concluded that geosynthetics can substantially improve the performance of a pavement section constructed on a subgrade soil with a low California bearing ratio. Also the reinforcing mechanisms of geogrids and geotextiles are different.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1439, Durability of Geosynthetics. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Monograph Title:

Durability of geosynthetics

Monograph Accession #:

01401248

Language:

English

Authors:

Al-Qadi, Imad L
Brandon, Thomas L
Valentine, Richard J
Lacina, Bruce A
Smith, Timothy E

Pagination:

p. 25-31

Publication Date:

1994-9

Serial:

Transportation Research Record

Issue Number: 1439
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309055202

Features:

Figures (7) ; References (19) ; Tables (6)

Old TRIS Terms:

Subject Areas:

Geotechnology; Highways; Materials; Pavements; I33: Other Materials used in Pavement Layers

Files:

TRIS, TRB

Created Date:

Oct 20 1994 12:00AM

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