What unit is used to express dry density in the project specifications?

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Multiple Choice

What unit is used to express dry density in the project specifications?

Explanation:
Dry density is reported as weight per volume, using the units that match field density tests in US customary practice. In project specifications, this is typically expressed as pounds per cubic foot, or pcf, which directly reflects how compacted soil densities are reported from in-situ tests. Other units like pounds per cubic yard, or SI units such as kg/m^3 or g/cm^3, are less standard in US project documents for this purpose. Therefore, pounds per cubic foot best fits the way dry density is specified and discussed in these specs.

Dry density is reported as weight per volume, using the units that match field density tests in US customary practice. In project specifications, this is typically expressed as pounds per cubic foot, or pcf, which directly reflects how compacted soil densities are reported from in-situ tests. Other units like pounds per cubic yard, or SI units such as kg/m^3 or g/cm^3, are less standard in US project documents for this purpose. Therefore, pounds per cubic foot best fits the way dry density is specified and discussed in these specs.

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