STRENGTH-MATURITY RELATIONS OF SOIL-CEMENT MIXTURES
SOIL-CEMENT WAS OBSERVED TO INCREASE IN COMPRESSIVE STRENGTH WITH TIME OF CURING WITH A BETTER THAN RANDOM CORRELATION IN BOTH A SEMI-LOGARITHMIC AND LOGARITHMIC MANNER. STATISTICAL ANALYSIS OF 417 SETS OF DATA REPRESENTING AGES UP TO 5 YEARS INDICATED THAT FOR GRANULAR SOIL-CEMENT (A-1, A-2, AND A-3 SOILS) THE BEST RELATIONSHIP WAS SEMI-LOGARITHMIC. THIS IS SIMILAR TO THE RELATIONSHIP OBSERVED IN CONCRETE, WHOSE CONSTITUENTS ARE SIMILAR TO GRANULAR SOIL-CEMENT. SILTY OR CLAYEY SOIL-CEMENT (A-4, A-5, A-6, AND A-7 SOILS), ON THE OTHER HAND, EXHIBITS THE CLOSEST RELATIONSHIP LOGARITHMICALLY. HOWEVER, HIGH CORRELATIONS WERE OBSERVED IN BOTH A LOGARITHMIC AND A SEMI-LOGARITHMIC MANNER IN ALL SOILS. THESE CORRELATIONS WERE FOUND TO EXIST, INDEPENDENTLY OF CHANGES IN CEMENT CONTENT, TIME OF CURING, TEMPERATURE OF CURING, AND IMMERSION OF TEST SPECIMEN BEFORE TESTING. THESE RELATIONSHIPS CAN BE USED TO PREDICT THE COMPRESSIVE STRENGTH OF SOIL-CEMENT AT A FUTURE TIME OF CURING. THE ACCURATE PREDICTION OF FUTURE COMPRESSIVE STRENGTHS CAN BE USEFUL IN DECREASING THE CEMENT CONTENT OF CERTAIN SOIL-CEMENTS, AND AS A BASIS FOR PERIODICALLY INCREASING MAXIMUM SOIL-CEMENT ROAD OR AIRFIELD LOAD CAPACITIES. THE STRENGTH-AGE RELATIONSHIP OF A SOIL-CEMENT CAN BE DETERMINED FROM DATA OBTAINED FROM STANDARD LABORATORY TESTS. STATISTICAL ANALYSIS OF 120 SETS OF DATA INDICATES THAT A SEMI-LOGARITHMIC PLOT TENDS, ON THE WHOLE, TO PREDICT FUTURE COMPRESSIVE STRENGTHS BEST FOR ALL SOIL TYPES. COMPRESSIVE STRENGTH CAN BE EVALUATED BOTH GRAPHICALLY AND BY EQUATION. THE SLOPE OF THIS STRENGTH-AGE RELATIONSHIP WAS FOUND TO BE AFFECTED BY THE PHYSICAL AND CHEMICAL PROPERTIES OF THE SOIL, THE CEMENT CONTENT, AND CERTAIN CHEMICAL ADDITIVES. THUS, IT IS EVIDENT THAT THE SLOPE OF THIS STRENGTH-AGE RELATIONSHIP IS AN EXCELLENT INDICATOR OF THE QUALITY OF A PARTICULAR SOIL-CEMENT MIXTURE. THE EFFECT OF ADDITIVES CAN ALSO BE BETTER EVALUATED BY USING THIS RELATIONSHIP. AN ADDITIVE WHICH RAISES THE SLOPE OF THIS STRENGTH-AGE RELATIONSHIP WILL, IN THE LONG RUN, PRODUCE MUCH HIGHER COMPRESSIVE STRENGTHS THAN AN ADDITIVE THAT MERELY RAISES THE RELATIONSHIP IN A PARALLEL MANNER. IT IS BELIEVED THAT FURTHER INVESTIGATION WILL INDICATE A CORRELATION BETWEEN THE SLOPE OF THE STRENGTH-AGE RELATIONSHIP AND THE DURABILITY OF SOIL-CEMENT MIXTURES. /AUTHOR/
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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
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Authors:
- Circeo, L J
- Davidson, D T
- David, H T
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Conference:
- 41st Annual Meeting of the Highway Research Board
- Location: Washington DC, United States
- Date: 1962-1-8 to 1962-1-12
- Publication Date: 1962
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 84-97
- Monograph Title: Stabilization of soils with Portland cement
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Serial:
- Highway Research Board Bulletin
- Issue Number: 353
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Airports; Bearing capacity; Cement content; Chemical properties; Compressive strength; Concrete; Concrete curing; Durability; Granular soils; Highway capacity; Logarithms; Mix design; Soil cement; Soils; Statistical analysis; Temperature
- Uncontrolled Terms: Immersion; Relationships
- Subject Areas: Aviation; Data and Information Technology; Geotechnology; Highways; Terminals and Facilities;
Filing Info
- Accession Number: 00231299
- Record Type: Publication
- Files: TRIS, TRB, ATRI
- Created Date: Aug 15 2004 2:41AM