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Title:

EFFECT OF LIME, MOISTURE AND COMPACTION ON A CLAY SOIL

Accession Number:

00230495

Record Type:

Component

Abstract:

IN AN EFFORT TO USE ECONOMICALLY MATERIAL OTHERWISE UNSUITABLE FOR SUBGRADE CONSTRUCTION, THE STATE OF VIRGINIA IS IN MANY INSTANCES ADDING A SMALL PERCENTAGE OF LIME TO IMPROVE SUCH MATERIAL. THIS PROJECT INVESTIGATES THE CHANGE IN ENGINEERING CHARACTERISTICS OF A TYPICAL CLAY SOIL WHEN DIFFERENT AMOUNTS OF HYDRATED LIME WERE ADDED. THE TESTING PROGRAM CONSISTED MAINLY OF STUDYING THE EFFECT OF THREE VARIABLES-PERCENT LIME, MOISTURE CONTENT, AND COMPACTIVE EFFORT- BY FABRICATING CALIFORNIA BEARING RATIO /CBR/ SPECIMENS AND OBTAINING VALUES OF CBR, DENSITY, AND SWELL. IN ADDITION, ATTERBERG LIMIT DETERMINATIONS WERE MADE ON THE SOIL CONTAINING DIFFERENT PERCENTAGES OF LIME. THE TRENDS SHOWN BY THIS STUDY ARE' /1/ THE PLASTIC PROPERTIES OF THE SOIL WERE IMPROVED APPRECIABLY BY THE ADDITION OF HYDRATE LIME, /2/ ADDITION OF HYDRATED LIME MATERIALLY INCREASED THE STRENGTH OF SOIL AS MEASURED BY THE CBR METHOD, /3/ INCREASES IN COMPACTIVE EFFORT WERE MORE EFFECT- TIVE ON LIME-TREATED SOIL THAN ON UNTREATED SOIL, /4/ FOR THE NATURAL SOIL, THE VALUES OF CBR AS MOLDED WERE GENERALLY GREATER THAN THOSE OF CBR SOAKED FOR 4 DAYS, BUT WITH THE ADDITION OF LIME THE SITUATION WAS REVERSED AND THE CBR- SOAKED VALUES OBSERVED WERE GREATER THAN THOSE OF CBR AS MOLDED, /5/ ALTHOUGH THE INCREASE IN LIME CONTENT INCREASED THE CBR AS MOLDED, THE CHANGE WAS NOT A PRONOUNCED AS FOR CBR SOAKED, /6/ THE ADDITION OF HYDRATED LIME REDUCED THE SWELL PERCENTAGE OF THE CLAY SOIL APPRECIABLY, AND /7/ THE CBR TEST ON NATURAL SOIL AND SOIL-LIME MIXTURE USING VARYING COMPACTIVE EFFORT AND MOISTURE CONTENT INDICATED THAT STRENGTH IS A FUNCTION OF BOTH DENSITY AND MOISTURE CONTENT.

Supplemental Notes:

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 #:

01410000

Language:

English

Authors:

Jan, Mohammad Ashraf
Walker, Richard D

Pagination:

pp 1-12

Publication Date:

1963

Serial:

Highway Research Record

Issue Number: 29
Publisher: Highway Research Board

Media Type:

Print

Features:

Figures (11) ; Tables (4)

Geographic Terms:

Virginia

Old TRIS Terms:

Virginia

Subject Areas:

Geotechnology; Highways

Files:

TRIS, TRB

Created Date:

Aug 15 2004 2:40AM

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