USDA soil classification
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Go to page 137 of Geotechnical engineering: principles and practices by Coduto (1999 printing)
It has very straightforward explanation of USDA soil classification. To use the chart, you need to know the percentage of sand, silt, and clay in the soil. Plot the three values on the triangle and the intersection of the three lines is your USDA classification.
Also important to note that if the percent passing sieve size #10 is less than 100%, the sample must be normalized.
It has very straightforward explanation of USDA soil classification. To use the chart, you need to know the percentage of sand, silt, and clay in the soil. Plot the three values on the triangle and the intersection of the three lines is your USDA classification.
Also important to note that if the percent passing sieve size #10 is less than 100%, the sample must be normalized.
