Portland Cement Type III
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Portland Cement Type III

Type III is a high-early strength Portland Cement that provides high strengths at an early period, usually a week or less. It is used when forms are to be removed as soon as possible, or when the structure must be put into service quickly. In cold weather, its use permits a reduction in the controlled curing period. Although richer mixtures of Type I Cement can be used to gain high early strength, Type III, high-early-strength Portland Cement, may provide it more satisfactorily and more economically.

Iran Portland Cement Type III

 

 

Portland Cement Type III producer

Portland Cement Type III Standard Tests

The following table contains standard tests for Portland Cement Type III. MGT Mineral Company can provide all necessary trading relationship to export Portland Cement Type III with these characteristics. 

 

Portland Cement Type III
Component ISIRI 389 Iranian standard test result
SiO2 *** 21.55
Al2O3 *** 5.20
Fe2O3 *** 3.20
CaO *** 64.24
MgO <5 1.10
SO3 <3.5 1.40
L.O.I <3 1.70
In.R <0.75 0.25
K2O *** 0.54
Na2O *** 0.30
Free CaO *** 1.60
LSF *** 89.38
SM *** 92.21
AM *** 1.61
C3S *** 54.17
C2S *** 20.94
C3A *** 8.23
C4AF *** 9.74
Blaine(Cm2/gr) *** 3540
Setting time Initial (min) >45 110
Final (min) <360 160
Expansion (autoclave) % <0.8 0.07
1 day >125 135
3 day >240 310
7 day *** -
28 day *** -
 
 
 
 

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