Sephaku 42 is a 42,5R early strength cement ideally suited where faster demoulding or striking/striping of formwork is beneficial. Ideal for all types of building and civil work and suitable for ready-mix and site-batched concrete, mortar and screeds.
Sephaku 42 is a type CEM II/A (V) 42,5R early strength cement and is manufactured to fully conform to the requirements of strength class 42,5R in accordance with SANS 50197-1:2013.
Sephaku 42 is rated ‘R’ in terms of early strength development which makes it ideally suited where faster demoulding or striking/ stripping of formwork is bene cial.
Portland- y ash cement concretes, designed for the same strength as Portland cement concrete, will continue to gain additional strength to 90 days, provided adequate curing is given to the concrete.
Ideal for all types of building and civil work
For use in the manufacture of concrete products
Suitable for ready-mix and site-batched concrete, mortar and screeds
Exhibits early strength which improves stripping time
Benefits of reduced water demand make concrete easier to flow and pump, resulting in improved surface finish
GUIDELINE PROPORTIONS FOR TYPICAL APPLICATIONS (BY VOLUME)
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.