Definition:
It is an Portland Cement with moderate resisting sulfates properties that hardens into solid a mass when combined with water. It is resulted from pulverizing and softening of clinker formed by burning a mixture of homogenized limy materials and clay materials which contain proportionate rates of Silica, Alumina, Sulfur Oxides, and adding gypsum during pulverizing.
Usage
:
In construction fields that require a moderate sulfates resistance with less thermal emission at mixing process.
CHEMICAL ANALYSIS:
| Type | UNIT (%) | VALUE |
|---|
| MAGNESIUM OXIDE MgO | WT | <=6 |
| SULFUR TRIOXIDE SO3 | WT | <=3 |
ALUMINUIM TRI OXIDE AL2O3
| WT | <=6 |
| FERRIC OXIDE Fe2O3 | WT | <=6 |
| TRI CALCUIM ALUMINATE C3A | WT | <=8 |
| LOSS ON IGNITION L.O.I | WT | <=3 |
| INSOLUBLE RESIDE I. R | WT | <=.75 |
| ALKALIES (Na2O+0.658K2O) | WT | <=.6 |
| (C3S+4.75C3A) | WT | <=100 |
PHYSICAL TESTS:
| TEST | UNIT | VALUE |
|---|
| INITIAL SETTING TIME | Minute | >=45 |
| FINAL SETTING TIME | Minute | <=375 |
| SPECIFIC SURFACE AREA "FINENESS" | Cm2/g | <=4200 >=2800 |
PRESSURE RESISTANCE:
| DAYS | UNIT | VALUE * | VALUE ** |
|---|
| 3 | MPa | >=10 | >= 26 |
| 7 | MPa | >=17 | >= 38 |
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