Sephaku 42 general purpose blended cement fully complies with the requirements for a strength class 42,5N in the South African National Standard 50197-1.
The ‘N’ denotes normal strength gain and the addition of high-grade cement extenders ensures professional quality and less water to produce a cohesive mix and long-term durability.
For more specialised structural concrete applications, the use of Sephaku 42,5R should be considered.
Guideline proportions in the tables below allow for a nominal 5-10% wastage.
1 wheelbarrow load of cement in volume = 2 x 50 kg bags.
HIGH STRENGTH CONCRETE
Improved water tightness, columns, slabs and heavy-duty industrial floors.
25 - 30 MPa
MEDIUM STRENGTH CONCRETE
Paths, driveways and light-duty floors.
20 - 25 MPa
LOW STRENGTH CONCRETE
Foundations, footings, ‘home’ concrete, e.g. domestic flooring, steps, paths and fencing.
10 - 15 MPa
MORTAR (GENERAL PURPOSE)
Bricklaying and plastering.
DRY, LEAN MIXES
Brick and block manufacture.