CEMENT

CEM I 52,5 R

CEMENT TYPE Portland cement - CEM I 52,5 R

MAIN CHARACTERISTIC Very high initial strength

CEMENT USAGEAccording SR EN 206/1-2002, SR 13510/2006, CP 012/1-2007,NE 013- 2002 and INCERC researches.

Civil, industrial, social and cultural building structures that need fast execution during all seasons (including winter time) by reinforced/ prestressed concrete – classes from C25/30 to C100/115.Fine concrete from C30/37 to C80/95 for construction elements with thin dimensions and for repairing works to bridges, buildings, roads, that have to return in service in short time ( from 1 to 3 days)

Roads, bridges and tunnels – special for roads concrete BcR3.5 to BcR5 in resistance layers for road systems, plane runways, industrial platforms, other traffic surfaces with short commissioning time. Reinforced/ prestressed concrete for road bridges, railway bridges, tunnels, viaducts: concrete classes: C25/30 to C100/115

Precast elements made from reinforced/ prestressed concrete hardened without thermal ageing or with reduced thermal ageing. Light precast elements: concrete pavements, curbs, cement roof tiles, hard or aerated concrete bricks. Medium precast elements: concrete railway sleepers, beams, pillars. Heavy precast elements: big dimensions beams and pillars, high speed railway sleepers concrete classes C25/30 to C100/115

Construction works during winter time (temperatures below 5˚C)

Dry mortars and adhesives for ceramic tiles and polystyrene.

Cement For High Performance Concrete

CHARACTERISTIC VALUE ACCORDING

COMPOSITIONPortland clinker (%) 95 ÷ 100 SR EN 197-1

Minor components (%) 0 ÷ 5 SR EN 197-1

CHEMICAL CHARACTERISTICS

Sulfates (as SO3%) ≤ 4 SR EN 196-2

Clorides (%) ≤ 0,1 SR EN 196-2

Insoluble residue (%) ≤ 5 SR EN 196-2

Loss on ignition (%) ≤ 5 SR EN 196-2

MECHANICAL AND PHYSICAL CHARACTERISTICS

Initial setting time (min) ≥ 45 SR EN 196-3

Soundness (mm) ≤ 10 SR EN 196-3

Compresive strenght 2 days (MPa) ≥ 30 SR EN 196-1

Compresive strenght la 28 days (MPa) ≥ 52,5 SR EN 196-1

CARACTERISTICI CIMENT

CONCRETE CLASSESConcrete classes recommended to be designed with this cement:

C25/30, C30/37, C35/45, C40/50, C45/55, C50/60, C55/67, C60/75,

C70/85, C80/95, C90/105, C100/115,

BcR3,5, BcR4, BcR4,5, BcR5

SHELF LIFE 60 days from delivery date, respecting transport and storage conditions

according in force norms.

DELIVERY Bulk in cement trucks or rail carriages.

CERTIFICATION The product is EC certified according SR EN 197-1:2002

RECOMMENDATIONS• Have to be respected the W/C ratio according to CP 012-1: 2007

• Have to meet the requirements for transport, casting, compacting,

treatment (curing and protection) and concrete demoulding

• Do not pour concrete below temperatures of 5˚C without antifreeze

admixes

ENVIRONMENTAL EXPOSURE CLASSESThe cement can be used in following exposure classes according

CP 012/1 - 2007: X0, XC1÷XC4, XD1÷XD3, XS1÷XS3, XF1÷XF4,

XM1÷XM3, XA1÷XA3 in environments without sulfate aggressive attack

STANDARDSR EN 197/1 - 2002 – CEMENT – Part 1:

Composition, specifications and conformity criteria for common

cements.

LAFARGE CIMENT (ROMANIA) SA20 Modrogan street, Bucharest, 1st district,Phone: +40 21 307 52 00 Fax: +40 21 312 09 45www.lafarge.ro