Supraluk

Cement for the preparation of concrete with highly demanding concrete constructions.
Specifically adapted for load-bearing concrete structures and for concretes of higher finishing strengths.

Description

Mixed Portland cement contains: 65-79 % Portland cement clinker, 21-35 % silica fly ash of mark V from the power plant and limestone of a mark L, as main ingredients, milled together in a ball mill with the addition of natural gypsum as a regulating binding agent. The certificate of conformity to specifications: HRN EN197-1 i HRN EN197-2, BAS EN 197-1, BAS EN 197-2.

Benefits and Characteristics

GOOD WORKABILITY
Good workability, colour-fastness, small changes in volume
HIGH HEAT OF HYDRATION
High heat of hydration enables concreting in colder environments
STANDARD INITIAL STRENGTH DEVELOPMENT
Standard development of initial strength minimises a risk of cracking during construction
GOOD RESISTANCE
Good resistance to moderately aggressive effects due to the addition of silicon fly ash.

Physical & mechanical and chemical characteristics	SUPRALUK CEM II/B-M(V-L)42,5 N	Requirements under BAS EN 197-1
Stability of the volume by La Chatelier (mm)	1,1	≤10
Setting time (min)	215	≥60
Compressive strength on 2 days (Mpa)	20	≥10
Compressive strength on 28 days (Mpa)	53	≥42,5≤62,5
Sulphate content SO₃ (%)	2,2	≤3,5
Chloride content Cl (%)	0,03	≤0,10

Recommended for:

Production of concrete of higher strength class;
Portable armoured and unarmed concrete structures (foundations, walls, beams, panels, arches, staircases etc.);
Production of transportable and pumped concrete;
Concrete structures of large section and volume;
Construction of concrete elements (concrete block etc.)