Cavcon - Quality Concrete Products

Prestressed concrete lintels

Prestressed Concrete Lintels

Technical Details: lintels up to 4,2m

Specification 105 x 70mm 145 x 70mm
Mass per metre length 15kg 19kg
Moment of Resistance 705Nm 1050Nm
No. of 2,64mm crimped prestressing wires 4 6
Compressive strength of concrete 50Mpa at 28 days

Technical Details: lintels from 4,2m to 6,0m

Specification 105 x 70mm 145 x 70mm
Mass per metre length 15kg 19kg
Moment of Resistance 705Nm 1050Nm
No. of 2,64mm crimped prestressing wires 6 9
Compressive strength of concrete 50Mpa at 28 days

Erection Guidelines

0,9m to 3m Lintels: Minimum bearing of 200mm on each side and four courses of bricks

3m to 4,2m Lintels: Minimum bearing of 250mm on each side and five courses of bricks. Temporarily support in centre for approximately seven days.

4,5m to 6m Lintels - Standard method: Minimum bearing of 300mm on either side and six courses of bricks. Temporarily support for approximately ten days.

4,5m to 6m Lintels - Cavcon recommended method: Lay Lintels upright, that is on their narrow side, to greatly increase their moment of resistance. Use 3 lintels side by side if necessary. Minimum bearing of 200mm on each side and five courses of bricks. Not necessary to prop although always recommended.

Technical drawings

Refer to our technical drawings page for detailed dimension and installation information.