Apparent density (pb) is the ratio between the apparent volume and dry specimen mass of a soil sample. The volume is limited by external specimen forces which include voids. Therefore, it is measured in kilograms per cubic meter (kg/m3).
What is the significance of specific gravity of aggregate?
The coarse aggregate specific gravity test (Figure 1) is used to calculate the specific gravity of a coarse aggregate sample by determining the ratio of the weight of a given volume of aggregate to the weight of an equal volume of water. It is similar in nature to the fine aggregate specific gravity test.
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