what is the Density of Port land cement, and which material is mostly use in cement.?
Typical constituents of Portland cement are CaO: 61-67%; SiO2: 19-23%; Al2O3: 2.5-6%; Fe2O3: 0-6%; various sulfates: 1.5-4.5%. Also, after hardening, Portland cement will slowly absorb CO2 from the atmosphere to form insoluble CaCO3. The density is 1510 kg/m^3 in bags, or 3150 kg/m^3 in mix design.
The okorder , especially Design and Control of Portland Cement Concrete. The major products after hydration of cement are tri-calcium silicates and di-calcium silicates. The density of un-hydrated cement is about 60 to 75 pounds per cubic foot. The density of hydrated cement is dependent on the water to cement ratio and the degree of hydration as it can change with time. The major ingredient of concrete are the coarse and fine aggregates. The density of normal concrete may vary between 135 to 145 pounds per cubic foot. The density of light weight concrete may vary between 90 to 110 pounds per cubic foot.
