It's made up from partially cement
lime
steel
Concrete actually contains cement as well as sand and gravel. We say "cement concrete" because cement is an ingredient in concrete. And because the cement is what binds together the sand and gravel that make up the concrete.
Concrete is to bread as cement is to flour. Concrete is a mixture of sand, gravel, cement, and water.
162. Comparison Of Quantities Of Materials - The mixture of concrete used for this class of work is often 1 part Portland cement, 3 parts sand, and 6 parts stone. The quantities of materials required for one yard of concrete (www. books.google.com) ("Cement and Concrete") 495. The concrete was one part Portland Cement; three parts sand; three parts gravel and three parts broken stone. (www.books.google.com) ("Cement and Concrete")
The correct spelling is cement (concrete, glue, or verb to firmly join).
Concrete is stronger than cement.It is composed of aggregates (sand and gravel) and cement; and may be cast with reinforcing bar within it (reinforced concrete). Cement is only a part of concrete. Cement has no tensile strength while concrete has compressive and tensile strength.
Cement, sand and stone is what concrete is made of. Cement is the binding agent.
The ideal ratio for a sand and cement mix for a strong and durable concrete foundation is typically 3 parts sand to 1 part cement.
The ideal cement and sand mix ratio for optimal strength in a concrete mixture is typically 1 part cement to 3 parts sand. This ratio helps ensure a strong and durable concrete mix.
The recommended mix ratio for Portland cement in concrete is 1 part cement, 2 parts sand, and 3 parts gravel or crushed stone. This ratio helps to achieve optimal strength and durability in the concrete.
cement is the binder for concrete like glue with out it you have mud with rocks