Table 1 Chemical composition of cement
From: Study the effect of partially replacement sand by waste pistachio shells in cement mortar
Compound composition | Chemical composition | Percentage by weight | Limits of IQS 5:1984 |
|---|---|---|---|
Lime | CaO | 60.77 | _ |
Silica | SiO2 | 19.35 | _ |
Alumina | Al2O3 | 5.2 | _ |
Iron oxide | Fe2O3 | 3.6 | _ |
Magnesia | MgO | 2.95 | < 5 |
Sulfate | SO3 | 2.5 | < 2.8 |
Loss on ignition | L.O.I | 1.15 | < 4 |
Insoluble residue | I.R | 0.2 | < 1.5 |
Lime saturation factor | L.S.F | 0.5 | 0.66–1.02 |
Main compounds (Bogue’s equation) percentage by weight of cement | |
|---|---|
Tricalcium silicate (C3S) | 53.0569 |
Dicalcium silicate (C2S) | 15.5296 |
Tricalcium aluminate (C3A) | 7.696 |
Tetraclcium aluminoferrite (C4AF) | 10.944 |