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Concrete efflorescence
Waterproofing efflorescence
Efflorescence: A Problem That Requires an Expert Solution
Getting back to the safe, familiar atmosphere of your beloved home after a long day at work is a feeling so comforting that words can’t describe. Your home is more than just a shelter for your body and belongings; it is an extension of your private life. Your home is a sanctuary where you reconnect with yourself and foster loving relationships with the ones you share this sacred space with.
Everyone dreams of and deserves to live in a home with beautifully painted walls, good ventilation, and warm, welcoming vibes. However, poor waterproofing can ruin the looks and vibe of your home and lead to problems like dampness, peeling of paint, and worst of all, efflorescence.
WHAT IS EFFLORESCENCE?
Efflorescence refers to the formation of a powdery or crystalline deposit on or underneath the surface of various types of masonry. The deposit is usually an unappealing shade of white, brown, gray, or yellow and mars the aesthetic appeal of the walls.
Efflorescence results when water present in the building surfaces dissolves certain salts and migrates to other areas, leaving behind salty deposits as it evaporates. Efflorescence is among the most challenging waterproofing problems to solve. Unfortunately, efflorescence cleaning is a major problem when it comes to concrete surfaces.
Concrete efflorescence can be triggered by faulty waterproofing, humidity, rain, and condensation. While exterior efflorescence is tricky enough, treating interior efflorescence is considered even more challenging.
Common Causes Of Efflorescence:
- The presence of certain salts in the construction materials used
- Improper raising of masonry following repointing
- Incomplete hydration process/improper curing of concrete
- Improper flashing or caulking
- Excessive water added to the concrete
- Improper drainage
- Inadequate provisions for ventilation
- Sulfation of pyrites in clay
- Improper ground storage
Two Kinds of Efflorescence
1. Primary Efflorescence
This type of efflorescence occurs when concrete is in the curing phase. If water with soluble salts or lime emerges to the surface and evaporates, leaving a powdery residue, it is known as primary efflorescence.
2. Secondary Efflorescence
Secondary efflorescence occurs after the concrete has hardened. When external moisture migrates to a concrete surface and infiltrates it causing the appearance of powdery deposits, it is known as secondary efflorescence.
The problems posed by efflorescence aren’t just aesthetic. Left untreated, it can lead to structural damage as well. While there are many traditional methods for efflorescence cleaning, these are seldom effective.
WHAT ARE THE CONVENTIONAL METHODS OF TREATING EFFLORESCENCE AND WHY ARE THEY INEFFECTIVE?
There are many conventional ways of treating efflorescence, but none of them are truly effective. Let us take a look.
1. Cleaning With Water
Applying a forceful water rinse to efflorescence with a pressure washer to clean it up is a widely used method. However, using water can bring more salt to the surface, and there is a risk of efflorescence resurfacing.
2. Using a Stiff Brush
Traditionally, stiff brushes are used to sweep away efflorescence from smoother surfaces. However, this method is just a temporary solution as it doesn’t treat the root cause of the problem.
3. Using Chemical Cleaners
A mild solution of muriatic acid in water is a conventional chemical cleaner used for clearing efflorescence. While this may clear up efflorescence, it can also lead to erosion of masonry if not done properly.
4. Applying Diluted Vinegar
People who don’t want to use chemical cleaners often resort to applying diluted vinegar to efflorescence. While this method may work in the short run, it is ineffective in the long haul.
5. Sandblasting
Sandblasting is another common method of efflorescence cleaning. Even though it does remove efflorescence, it is an abrasive method that erodes the wall surface.
6. Chemical Waterproofing
Mixing waterproofing chemicals with cement and apply to the affected areas. This solution may perform temporarily but fails in the long run due to lack of flexibility in the coating, consequently leaving room for cracks to develop owing to contraction/expansion.
HOW ASIAN PAINTS SMARTCARE HELPS FIGHT AGAINST EFFLORESCENCE?
Traditional methods of treating efflorescence are mostly ineffective because they try to fix the problem after it occurs. Asian Paints SmartCare products help eliminate any chances of efflorescence by tackling the root cause of the issue.
SmartCare Damp Block 2K is a high-performance coating used for both positive and negative side waterproofing. With excellent bonding, good waterproofing, and unmatched resistance to hydrostatic pressure, it provides lasting protection against efflorescence and safeguards concrete from carbonation. Apply two coats on brick walls that are prone to damage from efflorescence. This product comes with a 3-year warranty on the brick level.
Another excellent way of protecting your home from efflorescence is to apply two coats of SmartCare Ultra Block 2K to any masonry surfaces, bricks, or concrete walls that are subject to damage from high moisture. This product comes with a 4-years warranty when applied at the brick level. Other than treating efflorescence, Ultra block 2k & Damp Block 2k can also be used for waterproofing of bathroom sunken areas, water tanks, and roofs.
Efflorescence is extremely common and it's difficult to treat it. Most of the conventional ways of fighting efflorescence are either downright ineffective or may lead to some other issues. That is why it is important to fight efflorescence the right way with Asian Paints SmartCare waterproofing products to maintain the strength and beauty of your home.
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