does sand have a smaller angle of repose than gravel?
-i know that the larger, more angular the particles are, the steeper the slope they will maintain but i feel like sand would have a greater angle of repose for some reason
-i know that the larger, more angular the particles are, the steeper the slope they will maintain but i feel like sand would have a greater angle of repose for some reason
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It's dependent upon quite a few things. Gravel is typically more rounded than sand, but it depends upon the type of sand and gravel. Water also changes the angle of repose. wet gravel has a larger angle than wet sand. Desert sand is pretty close to the same angle as gravel, and gravel mixed with sand has a smaller angle than just sand.
If you want take a cup and make a wide funnel and try it. make a pile of sand, one of gravel, one of mixed, and try both wet and dry.
In nature, water is going to play a role, so gravel is going to have a higher angle of repose, and cobbles higher still.
If you want take a cup and make a wide funnel and try it. make a pile of sand, one of gravel, one of mixed, and try both wet and dry.
In nature, water is going to play a role, so gravel is going to have a higher angle of repose, and cobbles higher still.
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Sand has a smaller angle of repose than gravel. The reason is that sand sized particles are more similar in size than gravel particles. Gravel is basically particles that are bigger than 10 mm, while sand is between 1/16 mm and 2 mm. Gravel can have smaller pieces wedged in here and there between the boulders and blocks. That type of packing will stabilize the pile.
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yea duh... are u dumb?