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Product Sheet
Product Analysis Report
Performance Constancy Certificate

CEM I 42, 5 R  



Portland Cement


Main Constituents

  • Clinker ≥ 95%
  • Minor additives ≤ 5%
  • Setting time regulating calcium sulfate

Chemical Requirements

  • Loss of Ignition ≤ 5%
  • Insoluble Matter ≤ 5%
  • SO3 ≤ 4,0%
  • Cl ≤ 0,10%

Physical Requirements

  • Initial setting (min.) ≥ 60
  • Soundness (mm) ≤ 10

Mechanical Requirements

  • Compressive Strength Development
  • Minimum values
  • 2 days: 20,0 MPa
  • 28 days: 42,5 MPa

Advantages

  • High early strength
  • High ultimate strength
  • Early demolding time
  • Compatible with mineral additives

Recommended Applications

  • Ready – Mix Concrete

Suitable for the production of all comprehensive strength classes. It gives high performance in early and ultimate strength.

  • Precast Production

Suitable for the production of precast and prestressed concrete.

  • Road Pavements

Suitable for concrete pavements for roads with heavy traffic.

  • Construction Chemicals

Suitable for the production of joint filler, tile adhesive and various construction chemicals.

  • General Use

For any and all kinds of grout mortar, plaster and repair works.

Availability and Delivery

  • Bagged (25 kg, 50 kg)
  • Bigbag (1,5 Ton)
  • Slingbag (50 kg/1,5 Ton)
  • Bulk

Precautions in Application

  • Follow the standard minimum cement content and maximum water/cement ratio.
  • Provide adequate protection and cure according to correspondent standards.
  • Keep framework and scaffolding in place until adequate mechanical strength is obtained.
  • Ready-mix concrete: avoid long time transportation.
  • Measures should be taken to prevent crack formation in concrete casting in hot and windy weather.

Not Recommended for

  • Not recommended to be used without mineral additives (ground granulated blast furnace slag, fly ash, etc.) in environments exposed to sulfates and harmful chemicals.
  • Not recommended to be used without mineral additives (ground granulated blast furnace slag, fly ash, etc.) in concrete that needs low hydration heat and mass concrete.

Environment, Safety and Storage

  • Wear suitable protective clothing, gloves, eye and face protection equipment.
  • For detailed safety information, request the “Safety Data Sheet” of the product.
  • Stock the bulk cements in suitable silos so that they are not exposed to moisture and wind, and the bag cements are stacked in a maximum of 10 rows in the warehouses protected from moisture, wind and cold.




Human Resources

OYAK Cement’s human resources management mentality consists of the adoption of approaches and applications that support strategical targets and performance, while responding to the special needs of the different industries with which it conducts its activities in an appropriate and efficient manner.

HUMAN RESOURCES POLICY JOB APPLICATION FORM INTERNSHIP OPPORTUNITIES