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Title:

APPLICATION OF GEOTECHNICAL CENTRIFUGE TESTING TO EVALUATE UNCONVENTIONAL HIGHWAY MATERIALS

Accession Number:

00741967

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309061598

Abstract:

The principles involved in using a geotechnical centrifuge to study long-term consolidation and seepage characteristics of an unconventional geotechnical material are described. Results are presented from long-term leaching tests that were performed in a 100 g-ton centrifuge to simulate 30 years of water flow through sludge material from a paper mill. The consolidation and permeability characteristics of these samples were tested, and the leachate flowing through the materials was collected and tested for chemical composition. Two sludges were tested and their behaviors were compared with those of a conventional clay material, also tested in a similar manner. The sludge material was found to be highly compressible and showed large reductions in permeability with time. Chemical analyses performed on the leachate collected after seepage through the sludge material indicated that the sludge material was suitable for the intended use. This same method of testing can also be used in testing new highway materials. The approach can provide information about the geotechnical and hydrological properties of the material and help identify the environmental characteristics by providing leachate for chemical analyses.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1577, Pavement Base and Foundation Materials, Deformation Characteristics of Subgrade, and Properties of Unconventional Aggregates.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

De, A
Zimmie, T F

Pagination:

p. 96-100

Publication Date:

1997

Serial:

Transportation Research Record

Issue Number: 1577
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309061598

Features:

Figures (3) ; References (7) ; Tables (2)

Old TRIS Terms:

Subject Areas:

Environment; Geotechnology; Highways; Hydraulics and Hydrology; Materials; I33: Other Materials used in Pavement Layers

Files:

TRIS, TRB, ATRI

Created Date:

Oct 21 1997 12:00AM

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