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Title:

FUNDAMENTALS OF SOIL COMPACTION AND PERFORMANCE

Accession Number:

00238157

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309021693

Abstract:

THE OVERALL OBJECTIVES OF THIS RESEARCH STUDY WERE TO DEVELOP METHODS OF PREDICTING PAVEMENT PERFORMANCE UNDER SEVERE SERVICE CONDITIONS; TO ARRIVE AT A MORE RAPID, ACCURATE MEANS OF CONTROLLING THE QUALITY OF THE COMPACTION PROCESS; TO PREDICT, FROM A LIMITED LABORATORY STUDY, THE QUALITY OF SUB-GRADE SOIL REQUIRED FOR THE ANTICIPATED SERVICE CONDITIONS; AND TO ENSURE THAT THE DESIRED MATERIAL PROPERTIES ARE ATTAINED DURING CONSTRUCTION. THE RESEARCH WAS CARRIED OUT PRIMARILY TO STUDY THE CORRELATION BETWEEN ENGINEERING AND PHYSICAL PROPERTIES OF FIELD- AND LABORATORY-COMPACTED SPECIMENS. UNDISTURBED FIELD SPECIMENS WERE OBTAINED AFTER REGULAR SHEEPSFOOT-ROLLER COMPACTION, REGULAR PROOF ROLLING, AND EXTRA PROOF ROLLING. THE PARAMETERS EVALUATED WERE PHYSICAL CHARACTERISTICS, PRIMARY RESPONSE, AND ULTIMATE RESPONSE. THE COMBINED EFFECTS OF COMPACTIVE EFFORT, TYPE OF COMPACTION, MOISTURE CONTENT AT COMPACTION, AND MOISTURE GAIN AFTER COMPACTION ON THE PHYSICAL PARAMETERS AND ENGINEERING PROPERTIES WERE NOTED AND COMPARED FOR FIELD- AND LABORATORY-PREPARED SOIL. THIS STUDY SHOWS THAT THE PHYSICAL SOIL PARAMETERS DESCRIBING THE INTERRELATION AMONG MOISTURE, DENSITY, COMPACTION ENERGY, AND METHOD OF COMPACTION CAN BE USED FOR THE CORRELATION OF LABORATORY AND FIELD SPECIMENS. COMPARING SHEAR STRENGTH CHARACTERISTICS OF LABORATORY AND FIELD SPECIMENS AT VARIOUS MOISTURE CONTENTS AND COMPACTION CONDITIONS INDICATED THAT THE LABORATORY GYRATORY METHOD AND THE 40-BLOW DROP-HAMMER METHOD ARE MORE REPRESENTATIVE OF THE FIELD-COMPACTION PROCESS. THE CREEP MODULUS, DYNAMIC MODULUS, AND RESILIENT MODULUS CAN BE USED TO INTERRELATE PROPERTIES OF FIELD- AND LABORATORY-COMPACTED SPECIMENS. THE RELATIONS PRESENTED IN THIS REPORT INDICATE THAT MAXIMUM MODULI OCCUR AT APPROXIMATELY THE SAME MOISTURE CONTENT AS THE OPTIMUM DRY DENSITY AND SHEAR STRENGTH.

Supplemental Notes:

Sponsored by Committee on Compaction. 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 #:

01418572

Authors:

Majidzadeh, Kamran
Guirguis, Hani R

Pagination:

pp 1-15

Publication Date:

1973

Serial:

Highway Research Record

Issue Number: 438
Publisher: Highway Research Board

Conference:

52nd Annual Meeting of the Highway Research Board

Location: Washington District of Columbia, United States
Date: 1973-1-22 to 1973-1-26

ISBN:

0309021693

Media Type:

Print

Features:

Figures (12) ; References (37)

Uncontrolled Terms:

Laboratory compaction; Soil properties

Old TRIS Terms:

Subject Areas:

Geotechnology; Highways; Materials

Files:

TRIS, TRB

Created Date:

Dec 22 1973 12:00AM

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