SUPER 42,5 R

Cement for high-strength concrete

Cement SUPER 42,5 R


Quality
The quality of cements is supervised by the TSÚS (Building Testing and Research Institute), Bratislava.
CEMMAC is a holder of an ISO 9001: 2008 quality management certificate and an ISO 14001: 2004 environmental management certificate.

The content of tricalcium aluminate in this cement is less than 5%.


ECO


CO2

SUPER 42,5 R
Portland-slag cement

Quick-setting cement suitable for the production of high-strength concrete and for structures or concrete elements requiring a rapid increase in early strengths. The higher development of heat of hydration also predetermines it to concreting at lower ambient temperatures.


Characteristics

CEM II / B-S 42,5R is a cement produced by fine grinding of Portland clinker, granulated blast-furnace slag (6 – 20% according to EN 197-1) and gypsum. It attains 2-day strengths ranging from 25 to 29 MPa and standard 28-day strengths of 55 to 59 MPa.


Use

  • concretes for difficult concrete structures
  • concrete elements and structures requiring a rapid increase in early strengths
  • prefabricated concrete elements and construction components (paving, permanent shuttering, kerbs, …)
  • industrial floors
  • external hard surfaces made of concrete
  • plain concrete and reinforced concrete even of higher strength classes
  • cement screeds


Advantages

  • a rapid increase in early strength and high final strengths
  • very good workability and soundness
  • higher development of heat of hydration
  • moderate resistance to chemical aggression (up to the XA1 environment)

Essential properties Harmonized Standard
EN 197-1
CEMMAC
CEM II/A-S 42,5R
2-day compressive strength (MPa) => 20 25 – 29
28-day compressive strength (MPa) => 42,5 =< 62,5 55 – 59
Initial setting time (min) => 60 160 – 200
Volume stability (expansion) – Le-Chatelier (mm) =< 10 0,0 – 1,0
SO3 sulphate content (%) =< 4 2,7 – 2,9
Chloride content (%) =< 0,10 0,02 – 0,09


Cement CEM I 42,5R graph