Market construction
Market construction

Portland cement 2 Sepahan cement

Sepahan cement
Iran

This type of cement is manufactured in accordance with the specifications of Iranian National Standard ISIRI-389 and American Standard ASTM-C150 and has a maximum C3A content of 8%. The initial and final strength of its standard mortar is lower than that of Type 1 cement. Type 2 cement, as modified cement, is more resistant to moderate sulfate attack than conventional cement. It is advisable to use this type of cement in hot weather, which increases the risk of ordinary concrete temperatures to more than 320 ° C and bulky concrete that exceeds 150 ° C.
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Portland cement 2 Sepahan cement

Cement is a hydraulic binder, in other words, cement is an inorganic powder material, which when mixed with paste water, is absorbed during hydration reactions and processes and even hardened, strengthened and stable even after hardening. Preserves in water. One of the most important synthetic hydraulic cements is Portland cement.

One of the most important synthetic hydraulic cements is Portland cement. Portland cement is a by-product of mixing limestone and clay by a weight ratio of about 3: 1 to 4: 1 (depending on their chemical composition), grinding the mixture in wet or dry ways, homogenizing raw materials, cooking materials In the furnace up to the border of sweating the grains surface and gluing them together in the form of welding or clinker, cooling and grinding the clinker with a bit of gypsum is achieved.

 

Two-day flexural strength

SiO2 (%)
2
Al2O3 (%)
4.9
Fe2O3 (%)
4
CaO (%)
64.2
MgO (%)
2.2
CI (%)
0.025
SO3 (%)
2.2
LOI (%)
1
IR (%)
0.35
Free CaO (%)
1.3
C3A (%)
6
Type
Portland Type 2

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