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Title:

REACTIONS OF SOIL MINERALS WITH CEMENT AND CHEMICALS

Accession Number:

00230522

Record Type:

Component

Abstract:

THE NATURE OF REACTIONS ACCOMPANYING THE STABILIZATION OF SOIL WITH LIME AND CEMENT AND THE MECHANISMS INVOLVED IN THE ALTERATION OF SOIL-CEMENT /OR SOIL-LIME/ REACTION BY CHEMICAL ADDITIVES WERE STUDIED WITH TWO SOIL MINERALS. MIXTURES OF MONO-MINERAL SOILS AND 10 PERCENT CEMENTING COMPOUNDS, WITH OR WITHOUT SODIUM ADDITIVES, WERE EXAMINED AFTER COMPACTION AND VARIOUS CURING PERIODS BY A NUMBER OF ANALYTICAL TECHNIQUES, INCLUDING FLAME PHOTOMETRY, COLORIMETRY, X-RAY DIFFRACTION, AND DIFFERENTIAL THERMAL ANALYSIS. BOTH MONO-MINERAL SOILS /QUARTZ AND KAOLINITE/ REACTED WITH THE THREE CALCIUM STABILIZERS /HYDRATED LIME, TRICALCIUM SILICATE AND TYPE I PORTLAND CEMENT/. ADDITION OF SODIUM ADDITIVES GREATLY INTENSIFIED THE REACTION BETWEEN THE SOIL AND THE STABILIZER AND INCREASED THE ABUNDANCE OF REACTION PRODUCTS. REACTIVITY OF KAOLINITE WITH ANY ONE OF THE CEMENTING COMPOUNDS WAS HIGHER THAN THAT OF QUARTZ. THE PRINCIPAL REACTION PRODUCTS PRODUCED IN QUARTZ MIXTURES WERE HYDROUS CALCIUM SILICATES OF VARIOUS COMPOSITIONS WITH CAO TO SIO2 RATIO VARYING FROM 0.2 TO 1, AND IN KAOLINITE MIXES WERE HYDROUS CALCIUM SILICATES, HYDROUS CALCIUM ALUMINATES AND A MIXED CALCIUM ALUMINOSILICATE. SODIUM FROM THE ADDITIVE ASSOCIATED WITH SOLUBLE COMPOUNDS EARLY IN CURE AND LATER WITH INSOLUBLE MIXED SODIUM-CALCIUM SILICATES OR ALUMINATES. /AUTHOR/

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 Title:

Soil-cement stabilization

Monograph Accession #:

01410045

Language:

English

Authors:

Moh, Za-Chieh

Pagination:

pp 39-61

Publication Date:

1965

Serial:

Highway Research Record

Issue Number: 86
Publisher: Highway Research Board

Media Type:

Print

Features:

Figures (16) ; References (29) ; Tables (10)

Uncontrolled Terms:

X-ray diffraction

Old TRIS Terms:

Subject Areas:

Geotechnology; Highways

Files:

TRIS, TRB

Created Date:

Aug 15 2004 2:40AM

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