Groupe Fissure Expert

  • Fissure Expert franchises
  • Foundation Crack Expert Group repair training courses
  • MAGASIN_EN_LIGNE
  • Client testimonials
  • Blog
  • Home
  • Services
    • Interior foundation crack repair
    • Cracks in a window corner
    • Concrete floor crack repair
    • Concrete joint or cold joint repair
    • Concrete repair for holes and honeycombs
    • Concrete foundation sealing – Water infiltration through a formwork rod
    • Elevator pit repair and maintenance
    • Concrete pool repair service
  • Helpful information
    • Cracked foundation inspection
    • Crack injection repair: Which technique to choose
    • Cracks: Epoxy or flexible polyurethane injection
    • Water infiltration: Perform the water ingress test
    • Concrete block or precast concrete foundation
  • Free quote
  • Contact
  • Blog
    • Video
  • English
  • French
SOUMISSIONGRATUITE
cliquer ici
Tuesday, 23 May 2017 / Published in Blog

What is pyrite and how can it affect your foundations?

Is your floor swollen or warped? Do the concrete slabs in your basement have abnormal cracks? You likely have a pyrite problem and the presence of this iron sulphide-based mineral is always concerning for homeowners.

Here are the causes and consequences of pyrite in your foundations.

Effects of pyrite

Quebec homeowners have been worried about the risks of pyrite on their houses since the early 2000s.

This mineral can have unfortunate consequences for building foundations when found in the backfill under the foundations. A chemical reaction occurs when in contact with water or air, increasing the volume of the fill and creating a strong pressure on the concrete slab, which can lift up to the point of cracking. The sulphuric acid produced by this reaction can also partially disintegrate the concrete and cause deformations.

Even if you don’t see any visible damages, call a professional for a foundation inspection to prevent potential pyrite problems. Better safe than sorry.

Solving pyrite problems in your foundations

If there is pyrite in your foundations, the recommended solution is to redo the backfill. Although it is a fairly large investment and there is substantial work involved, it is the only way to completely eliminate this mineral from your foundations. Simply repairing the cracks created by the contaminated fill will only slow down the problem and the pyrite effects will still be present.

Using “DB” certified backfill is recommended if, like many homeowners, you are replacing the backfill under your slab. This will not swell and your foundations will no longer be affected by contaminated soil.

In conclusion

Pyrite problems can be solved and even avoided. Make sure to regularly inspect your home and check for foundation cracks. Call a specialist if you have the smallest doubt that there is pyrite in your backfill. If you are building a new house, make sure to choose a high quality backfill to avoid any future complications.

Do not hesitate to contact us for any additional information or for a concrete foundation inspection.

What you can read next

Are cracks in new house foundations normal?
Three types of joints that can prevent concrete slab cracking
What to Do when Your House is Settling

Les articles les plus récents

  • Top 5 Best Foundation Crack Repair Companies in 2023

    Choosing a company specializing in foundation c...
  • Water infiltration in the basement: Solve the problem quickly!

    In Quebec, water infiltration through the entra...
  • Concrete slab: Why conduct a regular inspection of your home?

    The concrete present in concrete slabs is a mat...
  • All about epoxy garage floors

    Given their function, garage floors undergo a l...
  • probleme de fondation

    Common signs that your home is at risk of foundation problems

    Foundation problems are among the main factors ...

Contact

 

  • Amos
  • Rouyn-Noranda
  • Senneterre
  • Val d'Or

  • Gatineau

  • Île-Perrot
  • Saint-Lazare
  • Vaudreuil-Dorion

  • Beauharnois
  • Ormstown
  • Salaberry-de-Valleyfield

  • Blainville
  • Laval
  • Mont-Tremblant
  • Mont-Laurier
  • Repentigny
  • Saint-Eustache
  • Saint-Jérome
  • Terrebonne

  • Anjou  (secteur est)
  • Rosemont  (St-Léonard - Rosemont)
  • St-laurent  (St-Laurent - Ahuntsic)
  • Lasalle  (Lasalle - Lachine - Verdun - Île des Soeurs)
  • Pointe-Claire  (Dorval a Baie d'Urfé)

  • Beloeil
  • Boucherville
  • Brossard
  • Chambly
  • Longueuil
  • Saint-Constant
  • Saint-Hubert
  • Saint-Jean-sur-Richelieu
  • Sainte-Julie

  • Granby
  • Saint-Hyacinthe

  • Joliette
  • Repentigny

  • Sherbrooke

  • Drummondville
  • Victoriaville

  • Grand-Mère
  • La Tuque
  • Trois-Rivières

  • Thetford Mines

  • Lac Mégantique

  • Saint-Georges

  • Sainte-Marie

  • Lévis
  • Lévis  (secteur St-Nicolas)
  • Québec  (secteur Cap-Rouge)
  • Québec  (secteur Val-Bélair)
  • Québec  (secteur Charlesbourg-Lebourgneuf)
  • Québec  (secteur Beauport)
  • Québec  (secteur vieux Québec)

  • Alma - Lac-Saint-Jean
  • Chibougamau
  • Chicoutimi
  • La Tuque

  • Matane
  • Rimouski
  • Rivière-du-Loup

  • Côte-Nord

  • Chandler
  • Gaspé
  • Paspébiac

  • Alberta
  • Colombie Britannique
  • Manitoba
  • Nouveau Brunswick
  • Terre-Neuve- et-Labrador
  • Nouvelle Écosse
  • Ontario
  • Île-du-Prince–Édouard
  • Saskatchewan
  • Territoires du Nord-Ouest
  • Yukon Nunavut

 

Facebook
  • Fissure-Expert à Laval
  • Fissure-Expert à Markham
  • Fissure-Expert à Mississauga
  • Fissure-Expert à Mont-Tremblant
  • Fissure-Expert à Saint-Jean-sur-Richelieu
  • Fissure-Expert à Saint-Laurent -
  • Fissure-Expert à Sainte-Julie
  • Fissure-Expert à Toronto

Services

  • Fissures intérieurs sur fondation en béton
  • Imperméabilisation de fissure extérieur de fondation
  • Réparation de fissures dans un coin de fenêtre
  • Réparation de fissures de plancher
  • Réparation de joints de béton ou joints à froid
  • Réparation de trous dans le béton et nid d’abeille
  • Réparation de fissure de piscine en béton
  • Sitemap - SEO

Contact

  • Terms of use

© 2007-2019 Le Groupe Fissure Expert

TOP
fb-share-icon
  • English
  • French