BASEMENT PYRITE REMOVAL

Basement Pyrite Removal in Montréal

Is your basement floor cracked? There are many possible reasons for this: Settlement cracks in a slab, frost heave, expansive soil damage and shrinkage cracks in a slab. In Quebec, pyrite is another serious issue found in older homes, located around Montréal, West Island, Laval, and South Shore that often cause concrete floors to crack and heave. Call Akton Injection for an evaluation. Our team specializes in basement pyrite removal in Montréal for over the past 40 years.

PYRITE

Pyrite is a mineral that is found in stone and expands when comes in contact with humidity and oxygen. This causes:


 Cracks in the foundation
 Lifting of the basement and garage floors
 White powder on the floor

Call our team to remove the entire contaminated gravel and replace it with new certified DB gravel.


Pyrite Damage to Your Foundation Floor Slab

Pyrite or "Fool's Gold" is a type of mineral that may be found in the gravel used under garage floor slabs. The problem occurs because of the pyrite used in the granular fill as a base for the concrete floor. When exposed to water, oxygen, and a certain bacteria, the iron sulfide in the granular mix produces ferric iron that continues to be produced until one of the elements is exhausted. The concrete slab of your garage floor traps the elements in the pyritic backfill and eventually, the excess ferric iron expands until the slab lifts and cracks.


Pyrite Extraction and Garage Concrete Slab Repair

The only way to repair cracks caused by pyrite under the garage slab is to follow the same steps as the garage floor replacement but instead of just removing 1 foot of fill, we would have to remove all the gravel as deep as 8 feet and replace with new certified DB stone. If the slab is replaced without removing all the pyrite, the slab may crack again.


Call one of our representatives today or fill out our form for a free foundation repair quotation!

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