CEMENT CEM I 42.5R-SR 3 ACCORDING TO 197-1 DATA SHEET

Cement is a binder, a finely ground inorganic material which, when mixed with water forms a paste that sets and hardens by means of hydration reactions and processes and, once hardened, retains its strength and stability even under water.

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MAIN STANDARD COMPONENTS

• CLÍNKER (K) 95-100 %
• MINORITY COMPONENTS 0-5 %

STANDARDIZED CEMENT SPECIFICATIONS

• CHLORIDES <=0,10 %
• SULFATES <=3.5 %
• LOI <=5.0%
• INSOLUBLE RESIDUE <=5.0%
• SETTING START >=60 min
• EXPANSION <=10 mm
• RESISTANCE TO 2 DAYS >=20,0 MPa
• RESISTANCE TO 28 DAYS >= 42.5MPa <=62,5 MPa

It is a I cement type with 42.5R mechanical strength, low C3A content, that gives it the following characteristics:

• Minor chemical vulnerability to attacks from salt-like seawater or sulfates
• High compressive strengths at early ages and long-term
• A low surface area, allowing prepare concrete with lower water demand while maintaining the plasticity and reducing the risk of shrinkage.

RECOMMENDATIONS

Recommended for the production of:

• Reinforced concrete and dough for works in environments, water and aggressive lands due to salinity or sulfates.
• Pieces of concrete
• Dry compacted concrete
• All types of structural precast and prestressed
• Concrete with potentially reactive aggregate
• Marine works

PRECAUTIONS

Take care dosing, mixing and curing, especially in dry climates at elevated temperatures in order to avoid rapid drying that causes shrinkage.