POROSITY AND PERMEABILITY STUDIES OF VIRGINIA AGGREGATES
ALL OF THE AGGREGATES STUDIED SHOWED RELATIVELY LOW POROSITIES RANGING FROM A HIGH OF 3.66% TO A LOW OF 0.19%, WITH MOST VALUES BEING LESS THAN 1%. PORE SIZE DISTRIBUTIONS SHOWED CARBONATE AGGREGATES TO HAVE PORES OF NEARLY ALL ONE SIZE WHILE IGNEOUS AND METAMORPHIC ROCKS CONTAIN SEVERAL SIZES. PERMEABILITIES OF ALL ROCKS FELL IN THE RANGE OF 10 TO THE MINUS 1 TO 10 TO THE MINUS 5 MILLIDARCYS. A SET OF EQUATIONS WAS DEVELOPED TO RELATE POROSITY AND PERMEABILITY VALUES. IN ORDER TO INVESTIGATE THE FEASIBILITY OF A RAPID TEST METHOD TO PREDICT AGGREGATE WATER ABSORPTION, A CORRELATION BETWEEN POROSITY DETERMINED BY HIGH PRESSURE MERCURY INJECTION AND POROSITY DETERMINED BY LONG-TERM WATER ABSORPTION WAS ATTEMPTED. THE RESULTS RANGED FROM POOR TO FAIR. INCORPORATION OF OTHER PARAMETERS SUCH AS RATE OF WATER UPTAKE, PORE SIZE, AND ROCK GRAIN SIZE SERVED TO MAKE ONLY MODEST IMPROVEMENTS IN THE CORRELATION. IN VIEW OF THIS LACK OF STRONG CORRELATION NO RECOMMENDATION CONCERNING A RAPID TEST METHOD IS OFFERED AT THIS TIME. /AUTHOR/
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- Record URL:
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Supplemental Notes:
- VHRC 71-R39
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Corporate Authors:
Virginia Highway Research Council
Charlottesville, VA United States -
Authors:
- Sherwood, W C
- Huang, J H
- Dudash, J J
- McGhee, K H
- Publication Date: 1972-6
Media Info
- Features: Figures; References; Tables;
- Pagination: 112 p.
Subject/Index Terms
- TRT Terms: Absorption; Carbonate rocks; Equations; Mineral aggregates; Permeability; Porosity; Water
- Old TRIS Terms: Mineral aggregate testing
- Subject Areas: Geotechnology; Highways;
Filing Info
- Accession Number: 00217916
- Record Type: Publication
- Report/Paper Numbers: Fin Rpt
- Files: NTL, TRIS
- Created Date: Apr 2 1973 12:00AM