Download - Cem III-A 42,5 N-lh(en)
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CEMENT
CEM III A 42,5 N-LH
CEMENT TYPE Blast Furnace Cement - CEM III / A 42,5 N-LH
MAIN CHARACTERISTICLow heat of hydration and resistance in strong aggressive
environments including the sulfate low heat of hydration
CEMENT USAGEAccording SR EN 206/1-2002, SR 13510/2006, CP 012/1-2007
and UTCB technical researches.
Civil and industrial structures:Simple or reinforced concrete with class between C12/15 and C35/45
used in civil, industrial, and social construction works elements,
placed monolithically, exposed to aggressive and very aggressive
environments
Roads, bridges and tunnels: Road works in seaside area, sea environment or other aggressive
or very aggressive environments. Platforms in high aggressive
enviroments.
Precast elements Precast elements with concrete class between C16/20 and C40/50
exposed even to aggressive environment.
Hydro technical ConstructionsHydro technical works with simple or reinforced concrete, maximum
concrete class BcH45. Hydro technical constructions: water gates,
dams, channels, galleries and tunnels. Hydropower plants.
Dry mortars, polystyrene and ceramic tile adhesives
Cement for Concrete efficient in aggressive environments
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CHARACTERISTIC VALUE ACCORDING
COMPOSITION
Portland clinker (%) 3564 SR EN 197-1
Hydraulic admixture- blast furnace slag (%) 3665 SR EN 197-1
Minor components (%) 05 SR EN 197-1
CHEMICAL CHARACTERISTICS
Sulfates (as SO3%) 3,5 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 PHYSIHICAL CHARACTERISTICS
Initial setting time ( min) 60 SR EN 196-3
Soundness ( mm) 10 SR EN 196-3
Heat of hydration ( J/g) on 7 days 270 SR EN 196-8
Compresive strenght 2 days (MPa) 10 SR EN 196-1
Compresive strenght la 28 days (MPa) 42,5 62,5 SR EN 196-1
CONCRETE CLASSESConcrete classes recommended to be designed with this cement:
C8/10, C12/15, C16/20, C20/25, C25/30, C30/37, C35/45, C40/50
Hydro technical concrete:
BcH10, BcH15, BcH20, BcH25, BcH30, BcH 37, BcH 45
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 and
SR EN 197-1 A1/2004
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 5C without antifreeze
admixes
ENVIRONMENTAL EXPOSURE CLASSES
The cement can be used in following exposure classes according
CP 012/1 - 2007 and UTCB technical researches: X0, XC1XC4,
XD1XD3, XS1XS3, XF1 XF4, XM1XM3, XA1 XA3 including
high sulfate aggressive environments.
STANDARD
SR EN 197/1 - 2002 CEMENT Part 1
Composition, specifications and conformity criteria for common
cements; SR EN 197-1 A1/2004 Common cements with low heat of
hydration
CEMENT CHARACTERISTICS
LAFARGE CIMENT (ROMANIA) SA20 Modrogan street, Bucharest, 1st district,Phone: +40 21 307 52 00 Fax: +40 21 312 09 45www.lafarge.ro