This type of cement (Ordinary Portland Cement) is used for public purposes without the specific characteristics of concrete and in all reinforced and non-reinforced concrete structures that are required to initial and more final resistance.

Property

  • Ideal for general purpose (cement masons and building block and structural internal applications, etc)
  • Resistance to the frost
  • The cement 1-325 often provides specifications of type 2 (except resistance of sulfate ions and hydration heat)

Chemical characteristics of Portland Cement type 1-325

Features ASTM C-114 Profile of Nahavand Cement Type 1-325
Insoluble residue Max 0.75 0.40
Loss of ignition Max 3.0 2.2
Sulphur trioxide C3A>8 Max 3.5
C3A<8 Max 3.0
2.2
Magnesium oxide Max 5.0 1.8

Physical characteristics of Portland Cement type 1-325

Features ASTM C-114 Profile of Nahavand Cement Type 1-325
Specific surface Blaine (Cm2/g) Min 2800 _3000
Autoclave expansion(%) Max 0.8 _0.05
Autoclave expansion(%) Max 0.8 _0.05
Setting time Initial (min) Min 45 150-175
Secondary (h) Max 6 3-4
Comp.streng(kg/cm2) 2-day Min 120 150-170
7-day Min 200 300-320
28-day Min 325 380-400

 

 

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