Definition
It is an Ordinary Portland Cement 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 Silica, Alumina, Sulfur Oxides, and adding gypsum during pulverizing.
Usage
In all building ,constructions and concrete casting.
CHEMICAL ANALYSIS
| TYPE | UNIT (%) | VALUE |
|---|
| MAGNESIUM OXIDE - MgO | WT | <=4 |
| SULFUR TRIOXIDE - SO3 | WT | <=3 |
| LOSS ON IGNITION - L.O.I | WT | <=4 |
| INSOLUBLE RESIDE - I. R | WT | <=1.5
|
PHYSICAL TESTS
| TEST | UNIT | VALUE |
|---|
| INITIAL SETTING TIME | Minute | >=45 |
| FINAL SETTING TIME | Hour | <=10 |
| SPECIFIC SURFACE AREA "FINENESS" | Cm2/g | >=2200 |
| SOUNDNESS - le chatller | mm | <=10
|
PRESSURE RESISTANCE
| DAYS | UNIT | VALUE * | VALUE ** |
|---|
| 3 | MPa | >=15 | >= 30 |
| 7 | MPa | >=23 | >= 40 |
| 28 | MPa | >=35 | >= 59
|
As per Saudi Arabia Standards Organzation SSA 143/1979
**Average Specifications of Yamama cement.
Notice : The information and data contained herein are believed to be correct and give in good faith , but because of the many particular factors which are outside our knowledge and control and affect the use of product , no warranty is given or is to be implied with respect to such information , nor do we offer any warranty of immunity against infringement.
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