A kind of concrete · also called concrete mix, bagged concrete, premixed concrete, dry concrete

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About
Dry concrete mix is a dense blend of cement and aggregates that weighs about twice as much as water.
Dry concrete mix has a typical bulk density of about 125 pounds per cubic foot (2 grams per milliliter). Because it combines coarse sand and gravel with fine cement powder, the smaller grains fill the gaps between the larger stones. This close packing makes it significantly heavier by volume than pure cement powder or dry dirt. A standard 60-pound (27-kilogram) bag takes up less than half a cubic foot (0.014 cubic meters) of space.
From Wikipedia
Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid. It is the second-most-used substance, the most widely used building material, and the most-manufactured material in the world.
Read more on Wikipedia →Text from Wikipedia’s “Concrete” article, CC BY-SA 4.0.
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One cup weighs
1.04 lb (473 g)
Quick answer
One US cup of dry concrete mix weighs about 1.04 pounds (473 grams). That makes it roughly twice as heavy as an equal volume of water.
Typical figures, the same ones every comparison on the site uses; real ones vary.
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