what is the difference between (concrete) and (cement)?
concrete-A strong hard building?material composed of sand and gravel and cement and water cement-A building?material that is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar ergo,you can't create concrete without cement,but sometimes concrete pavement can be refered as cement.
The difference between concrete and cement is that concrete contains cement plus sand and gravel. It is the cement that binds the sand and gravel or crushed rock together to form what we call concrete. Concrete then, is more than just cement. Cement is made from limestone, calcium, silicon, iron and aluminum, plus lesser amounts of other ingredients. When water is added to cement, a chemical process occurs as it hydrates, allowing it to harden.
