Research Article
Cost Optimization of Mortars Containing Different Pigments and Their Freeze-Thaw Resistance Properties
Table 1
The chemical and physical properties of CEM I 52.5 R cement.
| | Chemical properties (%) | Physical and mechanical properties |
| | SiO2 |
21.6 | Specific weight | 3.06 | | Al2O3 | 4.05 | Specific surface (cm2/gr) | 4600 | | Fe2O3 | 0.26 | Whiteness (%) | 85.5 | | CaO | 65.7 | Initial setting (min.) | 100 | | MgO | 1.30 | Final setting (min.) | 130 | | Na2O | 0.30 | Water used for consistency (%) | 30 | |
K2O | 0.35 | Volume constancy (mm) | 1.0 | | SO3 | 3.30 | Remnants obtained using 0.045 sieve (%) | 1.0 | | Free CaO | 1.60 | Remnants obtained using 0.090 sieve (%) | 0.1 | | Chloride (Cl) | 0.01 | Compressive strength for 2 days (MPa) | 37.0 | | Insolubles | 0.18 | Compressive strength for 7 days (MPa) | 50.0 | | Loss on ignition | 3.20 | Compressive strength for 28 days (MPa) | 60.0 |
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