6.8 A standard Proctor test was conducted on a silty clay soil collected from a proposed construction site. The results are shown in the following table. (u2) Mass of moist soil in the mold (g) Moisture 0.S content (%) Trial no. II 1 1689 12.7 2 1752 15.0 ETS 08.0 VI 3 1800 17.8 onimetsh TS 4 1845 20.6 5 23.8 A0 1844 adT CLD a. Determine the maximum dry density (kg/m³) of compaction and the op- timum moisture content. Given: Mold volume = 943.3 cm³. D. If specification calls for 99% relative compaction in the field, what would be the field dry density and the of acceptable moisture content? onstruction site in Problem 6.8. As part of a a sand cone range

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Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.