|Areas Repaired||Top Deck Parking Repair - Terminal 3, Pearson Airport
|Repair Types||Concrete Cracks Floor Repair|
|Issues||Extensive surface cracks developed. Whole slab surface was proposed to be replaced|
The surface of the concrete had a lot of cracks, which are marked in blue in the pictures.
A conventional method called for demolition of the floors surface and casting of new concrete.
After general surface cleaning, the large cracks were ¼ inch saw cut to clear the cavity of all debris.
The cracks were filled in with Polyforce Plus and Sand mix.
The entire surface was treated with a roll on application of Polyforce Hardener for increased protection. The thin molecular structure of this polymer material allows for a deep concreted permeation.
This application turns the top 15 millimeters of the concrete surface into a composite polymer material impermeable to moisture and shielded from the elements.
The surface was finished with a simple concrete polish / shave.
Even though the concrete looks exposed, Polyforce Hardener, which resides underneath of the surface, provides a long lasting much needed protection.
In accordance with third-party testing, the repaired surfaces are rated to the following:
- 25 years of useful life
- 0% water permeation
- Polyforce Plus is rated to expand and contract with concrete
- The entire surface and volume of the slab is "monolithic"
- Compressive strength of 85 MPa
- Polyforce Plus mixed with Basalt reaches a compressive strength of 150 MPa
- Adhesive strength of 1.85 MPa (original concrete has only 1.2 MPa of a tensile strength, so the bond is stronger than the concrete itself)
- Repair is 60% cost of a traditional repair