Type III/A 42,5 N LH - Type III/A 42,5 N LH - Buzzi Unicem Italia
Type III/A 42,5 N LH
The percentages indicated do not include additions of calcium sulfate and additives.
Known for its controlled early strength development and controlled development of the heat of hydration (additional LH designation), this 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 | <2,8% | <=4,0% |
Chlorides (Cl - ) | EN 196/2 | <0,08% | <=0,10% |
Loss on ignition | EN 196/2 | <=4,0% | <5,0% |
Insoluble residue | EN 196/2 | <=2,0% | <5,0% |
Heat of hydration | EN 196/8 | < 250 j/g | < 270 j/g |
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 area | EN 196/6 | 3500-4500 cm2/g | ||
Initial setting time | EN 196/3 | >160 min | >=60 min | |
Volume stability | EN 196/3 | <=10 mm | <=10 mm | |
| EN 196/1 | |||
2 days | >18,0 MPa | >=10,0 MPa | ||
28 days | >50,0 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 high final strength
- Concrete for foundations and works in aggressive environments
- Concrete in contact with seawater
- Concrete for massive pours requiring the controlled development of the heat of hydration
- Concrete for road and rail works, including paving
- Wet-process sprayed concrete for tunnel linings
- Sewage works
Documents
Production and distribution structure
Legend
Bulk
Bag
Big Bag
Available in bag [produced in other factory]
Export
Environmental certification ISO 14001





