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Title:

COMPACTION SPECIFICATIONS FOR LOW HYDRAULIC CONDUCTIVITY CLAY EMBANKMENTS

Accession Number:

00677574

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309060680

Abstract:

Communication of regulatory and engineering decisions by the project specifications contractually establishes the parameters of project acceptance and sets forth how performance will be validated. If contract specifications fail to properly address the purpose of the project, it is difficult to properly perform the work. With a material such as kaolin clay the precision or variance associated with the results of commonly accepted testing procedures may be of a magnitude greater than that normally assumed. During a design-test program only two-thirds of the individual construction water-content tests fell within a desired wet-of-optimum range. Yet infiltrometer tests proved the hydraulic quality of the test panels. During project construction more than two-thirds of the individual water-content tests fell within the contractually specified range, yet 50% of the work was rejected because there was no provision in the construction specifications to allow for the outliers. Construction techniques used for clay pulverization, moisture conditioning, and compaction on a full production basis in the construction of a 53-acre kaolin clay liner having a specified in situ permeability are described.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1462, Compaction of Difficult Soils and Resilient Modulus Testing. 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 Accession #:

01495760

Language:

English

Authors:

Schexnayder, Cliff J

Pagination:

p. 10-16

Publication Date:

1994

Serial:

Transportation Research Record

Issue Number: 1462
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309060680

Features:

Figures (1) ; Photos (3) ; References (7) ; Tables (1)

Old TRIS Terms:

Subject Areas:

Construction; Geotechnology; Highways; I42: Soil Mechanics

Files:

TRIS, TRB

Created Date:

May 2 1995 12:00AM

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