Type III/B 42,5 N LH/SR - Type III/B 42,5 N LH/SR - Buzzi Unicem Italia
Type III/B 42,5 N LH/SR
The percentages indicated do not include additions of calcium sulfate and additives.
Known for its controlled early strength development, and thanks to the aluminate content in the clinker, this cement offers high/very high resistance to sulfates and a controlled development of the heat of hydration (additional LH designation). This cement conforms to the harmonized European standard EN 197/1 and displays the EC marking as required by European regulation 305/2011 (CPR).
The SR designation – sulfate resistance – refers to the additional property of the product based on the composition and performance requirements established in tables 2 and 5 of EN 197/1.
CGreen
Product with a lower environmental impact formulated to uphold the principles of sustainability and offer construction solutions that meet the latest environmental standards. The criteria used to define the CGreen line are based on the GWP (Global Warming Potential) indicator, which is included in the Environmental Product Declaration (EPD) to quantify the Carbon Footprint of cement and the entire supply and production chain.
The percentage of recycled content has also been identified for each cement to define the circularity indicator by cement type.
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 | <=2,0% | <5,0% |
| Insoluble residue | EN 196/2 | <=1,0% | <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 | 4000-5000 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 | >12,0 MPa | >=10,0 MPa | ||
| 28 days | >47,0 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
Settimello
Piazza Cavalcanti, 11
50040 Settimello (FI)
phone 800 015436
Arquata
Via Serravalle, 49
15061 Arquata Scrivia (AL)
phone 800 025525
Bulk Bag 
Big Bag Available in bag [produced in other factory] 
Export 
Environmental certification ISO 14001