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Sulfate Cement 42.5N SR5

CEM I 42.5 N-LH / SR5
Sulfate Cement 42.5N SR5

The Cement CRS (sulphate-resisting cement) consists of: 95% clinker, secondary constituents (0 to 5%) can be incorporated in the cement and calcium sulfate as gypsum is added as a regulator of socket.

CRS is commonly used:

  • Base cement for civil engineering work in aggressive environments.
  • Concrete work requiring low heat of hydration.

Specific and general recommendations for the use of different types of cement:

  • Use clean aggregates, free of organic matter
  • Respect the dosages and the rules of the art for the implementation
  • Aim for a Water / Cement ratio preferably as low as possible, compatible with good rheology of fresh concrete
  • Use standardized adjuvants
  • Avoid premature desiccation in hot or windy weather by curing the concrete (watering, damp tarpaulin, curing products, etc.)
  • Adapt the vibration of the concrete to its consistency to obtain optimal compactness without segregation
  • Avoid all contact with skin and eyes.
  • Use suitable equipment: gloves, waterproof shoes, glasses, etc.

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Specifications

Standard NA 442: 2013
Standard Designation according to NA 442:2013 Portland Cement Resistance to Sulphates
Identification CEM I 42.5 N-LH / SR5
Composition
  • Clinker = 95-100%
  • Secondary Constituents = 0-5%
Mechanical Characteristics 42.5 Mpa
Minimum resistance guaranteed at 02 days 10.0 MPa
Minimum resistance guaranteed at 28 days 40.0 MPa
Physico-Chemical Characteristics
  • C3A < 5.0%
  • Loss on ignition < 5.0%
  • Insoluble residue < 5.0%
  • MgO < 4.0%
  • SO3 < 3.0%
  • Chloride < 0.10%
  • Expansion < 10mm
  • Onset Time > 60 min
Quantity & Storage
  • Delivered 64x 25kg Bags
  • Total pallet weight 1.6 tonne
  • Store in dry conditions