A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Correlation of ASTM and Kentucky CBR Methods for Fayette County
Considerable discussions as to the most appropriate California Bearing Ratio (CBR) test method for pavement designers to be used in Fayette County have been raised for the past years. Present Fayette County street regulations apparently default to the Kentucky CBR method (KM-501). However, some geotechnical laboratories and design consultants prefer to use the ASTM method (ASTM D 1883). A laboratory testing program has been done to determine the correlation between the two methods for three major soil types in Fayette County. Nine tests were performed for each set of test variables on each soil type in an attempt to reduce statistical and random testing errors. CBR values were higher using Kentucky standards because the samples are compacted to a density greater than the density obtained from moisture-density tests. The ASTM test appears to be appropriate for Fayette County soils.
Correlation of ASTM and Kentucky CBR Methods for Fayette County
Considerable discussions as to the most appropriate California Bearing Ratio (CBR) test method for pavement designers to be used in Fayette County have been raised for the past years. Present Fayette County street regulations apparently default to the Kentucky CBR method (KM-501). However, some geotechnical laboratories and design consultants prefer to use the ASTM method (ASTM D 1883). A laboratory testing program has been done to determine the correlation between the two methods for three major soil types in Fayette County. Nine tests were performed for each set of test variables on each soil type in an attempt to reduce statistical and random testing errors. CBR values were higher using Kentucky standards because the samples are compacted to a density greater than the density obtained from moisture-density tests. The ASTM test appears to be appropriate for Fayette County soils.
Correlation of ASTM and Kentucky CBR Methods for Fayette County
T. L. Beckham (author) / D. Allen (author)
1990
24 pages
Report
No indication
English
Soil & Rock Mechanics , Soil Sciences , Transportation & Traffic Planning , Transportation , Pavement design , Bearing tests , American Society for Testing and Materials , Soil tests , Bearing strength , Laboratory test , Test procedures , Kentucky , Geotechnical engineering , Soil types , Compaction , Swelling index , Standard error , Density , Fayette County(Kentucky) , CBR(California Bearing Ratio) test
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