cement
Concrete is made from cement and other cementitious materials such as fly ash and slag cement, coarse aggregate made of crushed stone, fine aggregate such as sand, water, and chemical admixtures. For more information please visit the related link.
Concrete IS nature, the aggregate is crushed rock, the cement is made of natural lime and clay, mix these together with water and you get concrete.
Portland cement is made of,CaoSiO2Al2O3Fe2O3MgOAlkaliesSO3
The ratio of cement, sand and crushed stone in M 25 grade concrete is 1:1:2.In this grade of concrete a compressive strength not less than 25 N/mm2 is achieved in 28 days.
A. Cement
cement
No. Concrete is a man-made material composed broadly of cement, sand and aggregate (crushed rock).
CHINA IS world's leading cement consuming country ..............word cement comes from roman word means 'opus caementium resembling the masonry work to modern concrete made by mixing crushed rock and lime
Concrete is made from cement and other cementitious materials such as fly ash and slag cement, coarse aggregate made of crushed stone, fine aggregate such as sand, water, and chemical admixtures. For more information please visit the related link.
Limestone is crushed and baked at high temperatures to produce the main ingredient for Portland cement.
Sidewalks are made of concrete, which is not a rock. Concrete is a man-made construction material composed of Portland cement, various crushed rocks, sand and water.
Concrete is made from cement and other materials such as fly ash and slag, coarse aggregate made of crushed stone, fine aggregate such as sand and water. The aggregates are used to form the paste, while the sand or cement keeps it from wearing out easily, and the water to make it easy to smooth out.
Concrete IS nature, the aggregate is crushed rock, the cement is made of natural lime and clay, mix these together with water and you get concrete.
cement,crushed stone,natural gas petruleum and salt
cement,crushed stone,natural gas petruleum and salt
Gas concrete is also known as aerated concrete. It is generally made by introducing air or gas in to slurry composed of portland cement or lime and finely crushed silicious filters.Foam Concrete. A stabe foam is mixed with cement and crushed sand slurry thus causing the cellular structures when it gets set and hardened.