gravel aggregate cement

  • Importance of Gravel and Sand for Concrete | Hunker

    Apr 12, 2018 · Concrete is made up of cement and water plus an aggregate composed of sand and gravel. The sand and gravel do more than act as filler, though. The size and amount of gravel added to a bag of concrete also determines the product's volume, strength, and durability.

  • Construction aggregate - Wikipedia