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Spalling concrete refers to the flaking, cracking, or breaking off of concrete surfaces, often exposing the steel reinforcement (rebar) beneath. In Singapore, this issue is commonly seen in HDB flats, condominiums, balconies, and ceilings, especially in older buildings.
It is not just a cosmetic problem — spalling can indicate underlying structural deterioration and should be addressed early.
Singapore’s frequent rain and humidity allow water to penetrate concrete, leading to internal damage.
When water reaches the steel bars inside concrete, it causes rust. Rust expands, creating pressure that cracks and breaks the concrete.
Constant heat and cooling cycles weaken concrete over time.
Older properties are more prone to deterioration due to wear and tear.
All loose and damaged concrete must be removed to expose the affected area fully.
✅ Prevents further internal damage
Special repair mortar is applied to restore the structure and surface.
This is the MOST IMPORTANT STEP:
✅ Often combined with:
Spalling concrete is a common but serious issue in Singapore, mainly caused by water seepage and steel corrosion. While it may start as a small crack or stain, it can quickly escalate into a safety hazard if ignored.
The key to long-lasting repair is not just patching the concrete, but also addressing the root cause — waterproofing. Engaging a professional contractor like Triton Construction ensures proper treatment, protection, and durability.