Extensia™

Agilia™

 

Innovative Technology
in low shrinkage concrete
for commercial and
industrial floors

 

Extensia™ is a powerful solution to the problem of shrinkage cracks in interior concrete floor slabs.
Its innovative design offers many benefits over conventional concrete.

 

Extensia™
benefits

Increases saw-cut spacings
to 20 m x 20 m.
Increased durability
without surface treatment.
Eliminates the need for
steel mesh and steel fiber.
Allows reduction of slab
thickness.
Allows early finishing
and early loading of slab.
Is environmentally
sustainable.

 

What Extensia™ means for you

 

No steel Extensia’s™ advanced design and its ability to reduce shrinkage means there is no need to include any steel within the slab structure.*
Reduced thickness Extensia’s™ enhanced flexural strength will enable floor designers to consider thinner section floors. The environmental and economic benefits of this in conjunction with no steel are therefore substantial.
Less joints Extensia™ allows saw cuts to be pushed out to 20 m x 20 m, which realizes major savings for the clients regarding joint maintenance.
Ease of placement Extensia™ concrete can be placed using conventional laserscreed methods and traditional finishing processes associated to this type of floor construction.
 

*The reference for removal of steel is for non-structural slabs on grade.

*Design to be confirmed by a structural engineer

The Extensia™
Innovation

 

Extensia™ is a breakthrough technology, meeting market needs, based on the understanding of hydration, shrinkage and the cracking associated with a concrete floor’s structural behavior. The unique, patented Extensia™ solution, uses our Crack Control Concrete technology, offering tangible advantages for floor designers, contractors and end users.

With Extensia™, Lafarge opens new dimensions to concrete for industrial and commercial floors.

 
Conventional Floor (typical)
EXTENSIA™
Steel amount
25 kg/m3
No Steel
Saw cuts sections
6 m x 6 m
20 m x 20 m
Typical concrete shrinkage**
.04% to .065%
.04%
Typical slab thickness*
200 mm
150 mm – 175 mm
Finishing time (in winter, expressed in hours after batching)
7 – 8 hours
4 – 5 hours
Use of surface hardener*
yes
no
Loading time*
28 days
14 days or less

* Design to be confirmed by structural engineer.

** Tested in accordance with CSA, clause 8.9 of CSA A23.1-04

For optimal performance, Extensia™ must be used in conjunction with correct site preparation (refer to data sheet for further information).