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Gravel(noun) small stones, or fragments of stone; very small pebbles, often intermixed with particles of sand. Gravel(noun) a deposit of small calculous concretions in the kidneys and the urinary or gall bladder; also, the disease of which they are a symptom. Gravel(verb) to cover with gravel; as, to gravel a walk.
Gravel has a specific meaning in both Civil Engineering and Geology. In both cases it is related to the diameter of the grains which the soil is composed of.The density of gravel varies depending on many many things. For one there is packed and loose density. Next the density varies much of how many fines and coarses (sand and â¦ rock) are in the gravel mixture. There are many ways to find the density of gravel but takes a little know how.