Type IV/A (P) 42,5R - Type IV/A (P) 42,5R - Buzzi Unicem Italia
Type IV/A (P) 42,5 R
This cement contains: 65-89% clinker with a low calcium aluminate content, 11-35% pozzolanic material. A maximum of 5% minor constituents is permitted.The percentages indicated do not include additions of calcium sulfate and additives.
Known for its rapid early strength development, the cement conforms to the harmonized European standard EN 197/1 and displays the CE marking as required by European regulation 305/2011 (CPR).
Chemical properties
Parameter | Test method | Indicative values (1) | Specified characteristic limits |
---|---|---|---|
Sulfates (SO3) | EN 196/2 | <3,5% | <=4,0% |
Chlorides (Cl - ) | EN 196/2 | <0,08% | <=0,10% |
Pozzolanic activity test | EN 196/5 | positive | positive |
Water-soluble chromium VI | EN 196/10 | <=2 ppm | <=2 ppm |
Physical/mechanical properties
Parameter | Test method | Indicative values (1) | Specified characteristic limits |
---|---|---|---|
Blaine specific surface | EN 196/6 | 4000-5000 cm2/g | |
Initial setting time | EN 196/3 | >130 min | >=60 min |
Volume stability | EN 196/3 | <=10 mm | <=10 mm |
Compressive strength after curing for | EN 196/1 | ||
2 days | >24,0 MPa | >=20,0 MPa | |
28 days | >48,0 MPa | >=42,5 MPa |
(1) The values represent the level above (or below) the reasonably expected median values for the parameters indicated of BUZZI UNICEM cements belonging to the type and class named in the headers. These values are calculated on a yearly basis and take into account internal self-inspection data.
Current applications
- Reinforced concrete for in-ground and above-ground works requiring good early and final strengths
- Concrete for foundations and works in aggressive environments
- Wet-process sprayed concrete for tunnel linings
- Concrete in contact with seawater
- Sewage works
- Concrete for road and rail works
Documents
Production and distribution structure
Legend
Bulk
Bag
Big Bag
Available in bag [produced in other factory]
Export
Environmental certification ISO 14001





