🔍 Introduction
Across Quebec, many residential, commercial, and industrial buildings show signs of premature concrete deterioration: cracks, corrosion, surface spalling, and water infiltration.
But why is this so common here?
It’s no coincidence. Concrete is strong, but vulnerable to certain environmental and construction-related factors. In Quebec’s harsh climate — with long winters and repeated freeze-thaw cycles — concrete durability is put to the test.
🧊 1. Freeze-Thaw Cycles
During winter, moisture that enters concrete pores freezes, expands, then thaws repeatedly. This causes microcracks that widen over time and compromise structural integrity.
🧂 2. De-Icing Salts
Used heavily on sidewalks, parking lots, and roads, these salts seep into concrete and accelerate steel reinforcement corrosion. The result: spalling, internal cracking, and structural weakening.
💧 3. Poor Moisture Control and Infiltration
Inadequate waterproofing of slabs, foundations, or balconies allows water to penetrate and remain trapped. Combined with weak drainage, this creates continuous internal humidity that damages concrete from within.
🧱 4. Construction Defects
Poorly mixed or vibrated concrete, or concrete poured in cold conditions without proper protection, can lead to early-stage weakness. Sometimes, freezing during curing can cause irreversible damage.
🧪 5. Harmful Internal Reactions (Ettringite, Gypsum, etc.)
Certain concrete mixes may chemically react with moisture over time. This can lead to internal crystal growth (like delayed ettringite formation) that causes cracking and invisible internal damage.
👷 How to Prevent Concrete Deterioration
✅ Schedule periodic inspections with a licensed engineer
✅ Detect early signs of distress (cracks, rust, efflorescence)
✅ Apply the right repair solution based on technical analysis
✅ Improve drainage and waterproofing measures where needed
📞 Have Your Structure Inspected Before It’s Too Late
At Florcon, we perform in-depth technical inspections to identify the real cause of damage and recommend engineering-grade repair solutions.
Don’t spend on surface repairs before consulting a professional.
Book your inspection today
Why Concrete Deteriorates in Quebec