FROST PENETRATION IN SASKATCHEWAN PAVEMENTS
TO GATHER DATA ON RELATIONSHIPS BETWEEN SURFACE FREEZING INDEX AND FROST PENETRATION IN PAVEMENTS, MODIFIED GANDAHL FROST INDICATORS WERE INSTALLED AT 13 SITES ON THE PRIMARY HIGHWAY SYSTEM OF SASKATCHEWAN AND READINGS TAKEN DURING THE 1963-64 AND 1964-65 WINTERS. THE DATA PROVIDED AN ACCEPTABLE LINEAR RELATIONSHIP BETWEEN MAXIMUM FREEZING INDEX AND MAXIMUM FROST PENETRATION BUT INDICATED SUBGRADE SOIL TYPE HAD LITTLE EFFECT ON THIS RELATIONSHIP. A COMPUTER ANALYSIS OF THE DATA PROVIDED POLYNOMIAL RELATIONSHIPS BETWEEN SUBGRADE SOIL TYPE AND RATE OF FROST PENETRATION AS DEFINED ON A PENETRATION FREEZING INDEX BASIS. ALTHOUGH THERE WAS NOT SUFFICIENT DATA TO PROVIDE QUANTITATIVE RELATIONSHIPS BETWEEN RATE OF PENETRATION AND SOIL TYPE, THE DATA AVAILABLE DID SHOW THAT RATE OF PENETRATION WAS A FUNCTION OF SOIL TYPE AND ASSOCIATED MOISTURE CONTENT. THE DATA IN THIS REPORT IS PRESENTED AS INFORMATIONAL RATHER THAN AS CONCLUSIVE. ALTHOUGH RELATIONSHIPS BETWEEN FREEZING INDEX AND FROST PENETRATION ARE PROVIDED, THERE IS INSUFFICIENT DATA TO ESTABLISH FACTUAL REASONS FOR THEM. NEVERTHELESS, THE RELATIONSHIPS MAY BE USED FOR PRELIMINARY HIGHWAY DESIGN PURPOSES IN SASKATCHEWAN. /AUTHOR/
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Supplemental Notes:
- 81 Pp, 12 FIG, 7 TAB, 14 REF
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Corporate Authors:
Saskatchewan Dept Hwys, Regina /Canada
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Authors:
- CULLEY, R W
- Publication Date: 1967-8
Subject/Index Terms
- TRT Terms: Data analysis; Freezing; Frost; Highway design; Indicators (Instruments); Information processing; Mathematical analysis; Moisture content; Pavements; Polynomials; Soils; Subgrade materials; Surfaces
- Uncontrolled Terms: Frost penetration; Relationships; Surface area
- Old TRIS Terms: Freezing index
- Subject Areas: Geotechnology; Highways; Pavements;
Filing Info
- Accession Number: 00206573
- Record Type: Publication
- Source Agency: CANADIAN GOOD ROADS ASSOCIATION
- Files: TRIS, ATRI
- Created Date: Jan 30 1994 12:00AM