CEM I 52.5R

HIGH STRENGTH CEMENT RECOMMENDED FOR CONCRETE AND CONCRETE PREFABS

BULK

MAIN APPLICATIONS

  • High strength concrete
  • Reinforced concrete
  • Prestressed concrete and precast and prestressed structural elements
  • Concrete for rapid removal of formwork, uncasing and demoulding
  • Shotcrete
  • Self-compacting concrete

MAIN USAGE RESTRICTIONS

  • Reinforced and mass concrete in big volumes
  • Compacted dry concrete
  • Concrete with alkali-reactive aggregates

PRECAUTIONS

  • Store in a watertight and dry place
  • Store preferably for less than a month
  • Take care of the dosage, mixing and curing to avoid desiccation
  • Check temperature during mixing and curing in order to avoid shrinkage cracks during the first curing hours and the loss of rheology of fresh concrete
  • Do not mix with gypsum or other type of cement

SPECIFICATIONS

• Specifications UNE-EN 197-1:2011

Constituents:

  • Clinker: 95-100%
  • Minor constituents: 0-5%

These values refer to the cement core excluding calcium sulphate or any other additive

Chemical requirements:

  • Loss on ignition ≤ 5.0%
  • Insoluble residue ≤ 5.0%
  • Sulphates ≤ 4.0%
  •  Chlorides ≤ 0.10%

Mechanical requirements:

  • Compression strength at 2 days ≥ 30.0 MPa
  • Compression strength at 28 days ≥ 52.5 MPa

Physical requirements:

  • Initial setting time ≥ 45 minutes
  • Soundness ≤ 10 mm