00232660

Component

https://onlinepubs.trb.or...inepubs/sr/sr60/60-018.pdf

RESULTS OF STUDIES ARE GIVEN ON ADDITIVES TO MODIFY THE FROST SUSCEPTIBILITY OF SOILS AND ON ADDITIVES TO INCREASE THE EFFECTIVENESS OF PORTLAND CEMENT AS A PRIMARY STABILIZER. THE MOST PROMISING ADDITIVES FOR THE MODIFICATION OF THE FROST HEAVING CHARACTERISTICS OF SOILS WERE FERRIC CHLORIDE AND THE POLYPHOSPHATES. TEST RESULTS SHOWED THAT THE PHOSPHATE REDUCED THE RATE OF FROST HEAVE FOR 11 GRAVELS. THE SEARCH WAS DESCRIBED ON THE USE OF CHEMICAL ADDITIVES TO REDUCE THE EFFECTIVENESS OF PORTLAND CEMENT AS A SOIL STABILIZER. IT WAS SHOWN THAT CEMENT STABILIZATION CAN BE IMPROVED BY THE INCORPORATION OF RELATIVELY SMALL QUANTITIES OF SODIUM COMPOUNDS WHICH FORM INSOLUBLE COMPOUNDS WITH CALCIUM. THE MOST BENEFICIAL ADDITIVES WERE CAUSTIC SODA, SODA ASH, SODIUM SULPHITE, SODIUM SULPHATE, SODIUM METASILICATE AND SODIUM ALUMINATE. OPTIMUM ADDITIVE CONCENTRATION WAS FOUND TO CORRESPOND VERY NEARLY TO A SODIUM ION CONCENTRATION IN THE MOLDING WATER OF 1.0 NORMAL.

pp 172-173. 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.

00232656

1960

Highway Research Board Special Report

Digital/other

Additives; Cement additives; Chlorides; Concentration (Chemistry); Frost heaving soils; Frost susceptibility; Frost susceptible soil; Ions; Iron compounds; Phosphates; Sodium compounds; Soil stabilization; Soils

Geotechnology; Highways

TRIS, TRB

Jul 6 1970 12:00AM

• ANALYSIS AND DESIGN OF CONCRETE SLABS ON GROUND
• APPENDIX - LIST OF RUSSIAN LANGUAGE PUBLICATIONS
• BASIC PRINCIPLES OF FLEXIBLE PAVEMENT DESIGN AND CONSTRUCTION IN THE USSR
• CERTAIN FEATURES OF LATERAL PRESSURES OF SOILS
• CRITICAL ELEMENTS OF DESIGN AND CONSTRUCTION OF HEAVY-DUTY FLEXIBLE PAVEMENTS
• Current Practices in Soil Sampling
• EQUIPMENT FOR FIELD GEOTECHNIC INVESTIGATION OF SOILS
• FLOATING CAISSON FOUNDATIONS
• FOUNDATION ANALYSIS FOR MACHINES WITH DYNAMIC LOADS
• FOUNDATIONS FOR LARGE BRIDGES ACROSS SAN FRANCISCO BAY
• INTRODUCTORY REMARKS - FIRST SOIL MECHANICS SEMINAR FOR THE VISITING ENGINEERS FROM THE USSR
• ON THE DESIGN OF FOUNDATIONS BY THE METHOD OF LIMIT STATE OF THE SOIL BASE
• ON THE DEVELOPMENT OF SOIL MECHANICS IN THE USSR
• PROBLEMS OF FROZEN SOIL MECHANICS IN ENGINEERING PRACTICE
• RECENT USA RESEARCH ON SOIL STRENGTH AND DEFORMATION CHARACTERISTICS UNDER DYNAMIC LOADING CONDITIONS
• SOIL AND FOUNDATION ENGINEERING IN THE UNION OF SOVIET SOCIALIST REPUBLICS: INTRODUCTION
• STABILIZATION OF SETTLING AND WEAK CLAYEY SOILS BY THERMAL TREATMENT
• STUDIES OF FROST PROBLEMS IN A NORTHERN STATE
• SUMMARY OF ROTARY CONE PENETROMETER INVESTIGATIONS
• USE OF THE VIBRATORY METHOD FOR SINKING PILES AND PILE SHELLS IN BRIDGE CONSTRUCTION IN THE USSR