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CEM I - PORTLAND CEMENT (OPC) 42.5-R


Chemical analysis Results (%) Limit values
Silicon Oxide, % SiO2 19,37
Aluminium Oxide, % Al2O3 4,68
Iron Oxide, % Fe2O3 3,35
Calcium Oxide, % CaO 63,08
Magnesium Oxide, % MgO 1,42
Sulphur Oxide, % SO3 2,71 ≤ 4,0%
Sodium Oxide, % Na2O 0,29
Potassium Oxide, % K2O 0,63
CI 0,0089 ≤ 0,10%
Loss on Ignition % ( L.O.I) 3,28 ≤ 5,0%
Insoluble Residue % (I.R) 0,33 ≤ 5,0%
Free lime 0,73


Physical analysis Results Limit values
Initial Setting Time (minutes) 155 ≥ 60
Final Setting Time (minutes) 250
Soundness/Expansion (mm) 1,0 ≤ 10
Specific Surface Area Blaine (cm2/g) 3275
2 days - Compressive Strength (MPa) 24,0 ≥ 20
7 days - Compressive Strength (MPa) 39,2
28 days - Compressive Strength (MPa) 52,6 ≥ 42,5 ; ≤ 62,5


A hydraulic cement produced by milling Portland cement clinker (TS 3441) together with gypsum. It is classified as PC 42.5, and PC 52.5. "PC" is the symbol for Portland cement while the numbers 42.5, 52.5 indicate the minimum desired strength value achieved within 28 days.

Produced in compliance with TS 19 (Turkish), EN 197-1 (British) and (American) standards. The quality is also in compliance with Russian standards and the factory has the certificate enabling us to export to Russia.

It is generally used in works requiring high strength values, concrete works performed at low temperatures, precast buildings, tunnel-form applications, building chemical maunfacturing and foundations.

  • General purpose
  • All kinds of concrete structures
  • High Buildings
  • Road pavements
  • Sidewalk Concretes
  • Ground concretes
  • Buildings made up with slide-molds
  • General purpose prefabricated concrete components
  • Bridges
  • Railway Slippers
  • Art Works (viaducts, sub-passageways, upper passageways)
  • Water Storages
  • Concrete Pipes
  • Concrete Brickets
  • Tunnel Mould Applications
  • Pretensioning Concretes



CE (Conformite Europeenne) certifies conformity with the standards of European Union. TSE (Turk Standartlar Enstitusu) certifies conformity with the standards of Turkey GOST (Gosudarstvennyy Standart) certifies conformity with the standards of Commonwealth of Independent States which includes Russia, Belarus, Ukraine, Moldova, Kazakhstan, Azerbaijan, Armenia, Kyrgyzstan, Uzbekistan, Tajikistan, Georgia, and Turkmenistan REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) certifies conformity with the chemicals standards of European Union. SONCAP (Standard Organisation of Nigeria Conformity Assessment) certifies conformity with the standards of Nigeria. SII (Standards Institution of Israel) certifies conformity with the standards of Israel. ANEOR (Spanish Association of. Standardization and Certification) certifies conformity with the standards of Spain. API (American Petroleum Isntitute) certifies conformity with the standards of US petroleum and natural gas industry
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