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Sulphate resistance Portland Cement (Type V) which conforms to The Thai Industrial Standard for Portland Cement : TIS 15-1989 Type V and the American Standard : ASTM C150 / BS-12 Type V. This type of cement contains low C3A in order to protect concrete not to be eroded by sulfate from the environment.
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This type of cement is suitable for concrete works which require more sulphate resistance than other type portland cement such as bridge foundations, pillars, tunnels, pipelines which located near the sea, river or stream. | | |
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| | | | | | | | | CM V : 1-01-01-03 (3) | Specifications | ASTM Spec. | SCT Spec. | Typical | Chemical Analysis | | | | | | | | | | | | | SiO2 | (%) | - | - | | 21.6 | | | | Al2O3 | (%) | - | - | | 3.8 | | | | Fe2O3 | (%) | - | - | | 4.0 | | | | CaO | (%) | - | - | | 66.3 | | | | MgO | (%) | max 6.0 | max 2.0 | | 1.1 | | | | SO3 | (%) | max 2.3 | max 2.3 | | 2.1 | | | | LOI | (%) | max 3.0 | max 3.0 | | 1.1 | | | Insoluble Residue | (%) | max 0.75 | max 0.75 | | 0.1 | | | | C3S | (%) | - | min 55.0 | | 68.5 | | | | C2S | (%) | - | - | | 10.3 | | | | C3A | (%) | max 5.0 | max 5.0 | | 3.2 | | | | C4AF | (%) | | - | | | - | | | 12.3 | | | | 2C3A+C4AF | (%) | max 25.0 | max 25.0 | | 18.6 | | Physical Test | | | | | | | | | | | | | Blaine Fineness | (cm2/g) | min 2800 | min 3100 | | 3740 | | | | Soundness : Autoclave Expansion | (%) | max 0.8 | max 0.8 | | -0.02 | | | | Time of setting (Vicat Test) | | | | | | | | | | | | | - Initial set (min) | | min 45 | min 45 | | 118 | | | | - Final set (min) | | max 375 | max 375 | | 157 | | | | Air Content of mortar | (%) | max 12 | max 12 | | 5.8 | | | | Compressive strength | | MPa | psi | kgf/cm2 | MPa | psi | kgf/cm2 | MPa | psi | kgf/cm2 | | | 1 day | | - | - | - | 10.8 | 1560 | 110 | 14.7 | 2133 | 150 | | | 3 days | | 8.0 | 1160 | 82 | 19.6 | 2840 | 200 | 25.5 | 3697 | 260 | | | 7 days | | 15.0 | 2180 | 153 | 24.5 | 3550 | 290 | 33.3 | 4835 | 340 | | | 28 days | | 21 | 3050 | 214 | 37.5 | 5330 | 380 | 46.1 | 6683 | 470 |
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