Stop Waterproofing After Construction — Start With the Mix
Here’s a question that every developer in Pakistan should ask:
Why do we pour concrete, wait weeks for it to cure, and then — only then — start applying waterproofing membranes that will fail in 10–15 years?
It makes no sense.
The most logical time to waterproof concrete is when you are making the concrete. Not after. During.
BETOCRETE®-CP350-CI is a powder admixture added at the batching plant. It doesn’t sit on the surface. It becomes part of every cubic meter of concrete. It protects from the inside out. And it never needs replacement.
For betocrete waterproofing in Pakistan, this is the future.
What Is BETOCRETE®-CP350-CI?
BETOCRETE®-CP350-CI is a grey powder — a concrete admixture that combines two powerful technologies:
- Crystalline Waterproofing
Active chemicals react with water and cement byproducts to form insoluble crystals that block concrete’s capillary pores. These crystals become part of the concrete matrix. They are permanent. They are insoluble. And they are self-healing — when new cracks form (up to 0.4 mm), moisture triggers new crystal growth that seals them.
2. Corrosion Inhibition
Compounds that protect steel reinforcement from rust. Even if chlorides eventually penetrate the concrete, the corrosion inhibitor forms a protective molecular layer on the steel surface.
Packaging options:
· 20 kg bags for batching plants
· 3 kg water-soluble bags for precise dosing in mixer trucks
How the Chemistry Works
The Crystalline Reaction
When water is added to concrete, cement hydration produces calcium hydroxide and other byproducts.
BETOCRETE-CP350-CI’s active chemicals react with these byproducts — and with any moisture that later enters the concrete — to form long, needle-like crystals.
These crystals grow into:
· Capillary pores
· Micro-cracks
· Any potential water path
The crystals are insoluble. They become part of the concrete matrix. They are permanently active — even if the concrete dries out completely, dormant chemicals reactivate when moisture returns.
The crystals are insoluble. They become part of the concrete matrix. They are permanently active — even if the concrete dries out completely, dormant chemicals reactivate when moisture returns.
Corrosion Inhibition
Even waterproof concrete can crack under stress. When that happens, water and chlorides can reach the reinforcement.
The corrosion inhibitor in BETOCRETE-CP350-CI:
· Migrates to the steel surface
· Forms a protective molecular layer
· Significantly reduces the corrosion rate
This dual action — crystalline + corrosion inhibition — makes it ideal for aggressive environments like coastal Karachi.
Where Pakistani Engineers Are Using It
Coastal Karachi — Fighting Chlorides
Chlorides from sea air are the #1 enemy of reinforced concrete. They penetrate, reach the steel, and cause rust. Rust expands. Concrete spalls. Structures fail.
BETOCRETE-CP350-CI:
· Reduces chloride migration through concrete
· Protects steel with corrosion inhibitor
· Extends service life dramatically
For Karachi’s coastal developments — this should be the standard.
Lahore Basements — Eliminating Membranes
Lahore’s water table is rising. Basements that were dry 10 years ago are now leaking.
External membranes fail over time. They tear during backfilling. They degrade in the soil.
BETOCRETE-CP350-CI provides integral waterproofing — no membrane needed. The protection is in the concrete itself. It cannot be damaged. It cannot degrade. It lasts as long as the concrete lasts.
Water and Wastewater Structures
Certified for drinking water. Use it in:
· Potable water tanks
· Overhead reservoirs
· Sewage treatment plants
· Swimming pools
· Water treatment facilities
Northern Infrastructure
Bridges, tunnels, and retaining walls in Murree, Gilgit, and Skardu face:
· Freeze-thaw cycles (water freezes, expands, cracks concrete)
· De-icing salts (chlorides)
· Remote locations (difficult to maintain)
BETOCRETE-CP350-CI improves frost resistance and heals cracks — reducing maintenance in hard-to-reach places.
Industrial Floors
Factories and warehouses need concrete that resists:
· Water penetration
· Chemical spills
· Abrasion from forklifts
Integral protection can’t be damaged by surface wear.
How to Use — Step by Step
At the Batching Plant
The TDS specifies the exact sequence:
Dose BETOCRETE-CP350-CI onto the aggregates first — before water or cement
1. Mix dry for at least 30 seconds — ensures even distribution
2. Add water and cement — then mix for at least 45 seconds until homogeneous
In a Mixer Truck (Site Addition)
1. Dose directly into the mixing drum
2. Mix for approximately 1 minute per m³ of drum capacity
3. Minimum mixing time: 5 minutes
Surface Crystals — Normal and Expected
The TDS explicitly states:
“BETOCRETE-CP350-CI modified concretes may have crystals on the surface, depending on the composition.”
This is not a defect. It indicates the crystalline reaction is working.
The crystals:
· Can be brushed off if desired
· Do not affect performance
· Are completely normal
Frequently Asked Questions
Q) Is BETOCRETE-CP350-CI a surface coating?
No. It is an integral admixture added during concrete production. The protection is throughout the concrete, not just on the surface.
Q) Can it be used for roof waterproofing?
For new construction, yes. Concrete made with BETOCRETE-CP350-CI is inherently watertight from the day it is poured.
For existing roofs that are leaking, topical solutions like AQUAFIN-IC slurry are more appropriate.
Q) How long does the protection last?
As long as the concrete lasts.
The crystalline chemicals remain dormant but active. Even if the concrete dries out completely, they reactivate when moisture returns. When new cracks form (up to 0.4 mm), they self-heal.
This is permanent protection.
Q) Is it safe for drinking water?
Yes. Certified per DVGW W-347 and W-270 for potable water contact.
Q) Will it affect the workability of the concrete?
The TDS notes that in rare cases, it can influence solidification. For most mixes, workability is unaffected. If adjustments are needed, RUXOLITH-T5 (VZ) is available.
Conclusion
BETOCRETE®-CP350-CI fundamentally changes the waterproofing conversation.
Instead of asking “what membrane should we apply after construction?” it asks “why not build the protection in from the start?”
For coastal Karachi fighting chlorides. For Lahore basements against rising water tables. For the freeze-thaw cycles of the north. For water tanks that must stay clean and safe.
This admixture offers a simpler, more durable, more cost-effective approach.
One addition during batching. Permanent protection for the life of the structure.
Ready to Build Waterproofing Into Your Concrete?
Contact Aquafin Pakistan today for:
· Technical consultation on mix design
· Dosing recommendations for your specific project
· Product supply across Pakistan
Serving: Karachi | Lahore | Islamabad | Rawalpindi | Faisalabad | Multan | All major cities
Website: aquafinpakistan.com
