Introduction
Concrete structures are constantly exposed to moisture, water ingress, chlorides and other environmental factors that can affect their durability and service life. While surface-applied waterproofing systems can provide protection, integral waterproofing technology offers another effective approach by protecting the concrete from within. This is where BETOCRETE-CP350-CI comes in — a powder-form concrete admixture manufactured by SCHOMBURG, combining a crystalline waterproofing effect with corrosion inhibition.
BETOCRETE-CP350-CI is not a roof waterproofing coating or surface-applied waterproofing membrane. Instead, it is added directly to concrete during the mixing process. Its crystalline technology reacts within the concrete matrix to reduce capillary water absorption and help seal suitable cracks, while its corrosion-inhibiting effect provides additional protection for steel reinforcement.
For contractors, engineers, developers and construction professionals looking for a reliable concrete waterproofing admixture in Pakistan, BETOCRETE-CP350-CI can be used in foundations, basements, water-retaining structures, infrastructure projects, precast concrete and other applications where long-term water resistance and concrete durability are important.
In this blog, we will explore what BETOCRETE-CP350-CI is, how its crystalline technology works, its key benefits, applications, dosing guidelines and important considerations for using this concrete admixture in construction projects.
What is BETOCRETE-CP350-CI?
BETOCRETE-CP350-CI is a powder-form concrete admixture that combines a crystalline waterproofing effect with a corrosion inhibiting effect. When added to concrete during mixing, it reacts with moisture inside the concrete matrix, forming crystalline structures that fill capillary pores and micro-cracks — effectively giving the concrete the ability to actively heal cracks over time.
This makes BETOCRETE-CP350-CI particularly valuable for structures where water resistance and long-term durability are critical, such as foundations, basements, water tanks and other watertight concrete components.
Key Product Features
- Powder form admixture
- Increased active crack healing in concrete
- Corrosion inhibiting effect
- Improves frost resistance and resistance to thaw
- Reduced chloride ion migration
- Suitable for drinking water applications, per DVGW worksheet W-347 and W-270
Advantages of BETOCRETE-CP350-CI
Self-Healing Crack Repair
One of the standout benefits of this admixture is its ability to actively heal surface cracks and continuous cracks up to 0.4 mm wide. This self-healing capability significantly reduces the risk of water ingress through minor cracking that naturally occurs in concrete over time.
Lower Maintenance Costs
By minimising ongoing servicing and maintenance requirements, BETOCRETE-CP350-CI helps reduce the long-term cost of concrete upkeep — an important consideration for large-scale infrastructure and commercial projects.
Reduced Capillary Absorption
The crystalline technology reduces capillary water absorption within the concrete, which is one of the primary causes of dampness, staining and eventual structural damage in roofs, foundations and walls.
Corrosion Protection for Reinforcement
The built-in corrosion inhibitor helps protect steel reinforcement inside the concrete, extending the service life of the structure, especially in environments where chloride exposure is a concern.
Improved Frost and Thaw Resistance
BETOCRETE-CP350-CI improves the concrete’s resistance to frost and thaw cycles, making it suitable for a wide range of climatic conditions.
Lower Water Input
Because less water input is needed, there is a corresponding reduction in the introduction of concrete-damaging substances, further improving the durability of the finished structure.
Where is BETOCRETE-CP350-CI Used?
BETOCRETE-CP350-CI is designed for integral crystalline waterproofing of concrete structures and is suitable for a wide variety of applications, including:
- Foundations and watertight concrete components
- Economic, commercial, sports facility and housing construction
- Infrastructure, water and wastewater structures
- In-situ concrete, pre-cast concrete components and shotcrete
It is suitable for use in most exposure classes as per DIN EN 206–1/DIN 1045–2, with the exception of exposure class XA3. For exposure class XS, shows the highest efficacy, so project specifications should be checked accordingly.
This wide application range positions BETOCRETE-CP350-CI as a strong solution for waterproofing companies in Pakistan working on both residential and large infrastructure projects that demand dependable roof waterproofing service and structural water resistance.
How is BETOCRETE-CP350-CI Applied?
Dosing in a Concrete Plant
- BETOCRETE-CP350-CI must be dosed onto the aggregates and mixed for at least 30 seconds before adding water and cement.
- Then mix thoroughly for at least 45 seconds until fully usable.
Dosing in a Mixer Truck
- BETOCRETE-CP350-CI is dosed directly into the mixing drum of the vehicle.
- Mixing time should be approximately 1 minute per m³ of drum content, with a minimum mixing time of 5 minutes overall.
Storage and Disposal
BETOCRETE-CP350-CI should be stored in a cool, dry place, protected from sunlight. When stored correctly in the original, unopened container, it has a shelf life of at least 12 months. Once opened, the product should be used promptly. Any leftover product should be disposed of in accordance with disposal code AVV 17 01 07.
Important Notes for Application
- Concrete modified with BETOCRETE-CP350-CI may show crystals on the surface, depending on the mix composition.
- Preliminary tests must be carried out in accordance with valid standards before applying BETOCRETE-CP350-CI, even when combined with other additive types.
- Lignite fly ash has only limited suitability with this product.
- The use of CEM III/B & C cements is prohibited.
- Crack expansion limitations must always be complied with by the responsible planner, engineer, or structural engineer. Any design that deviates from these limits must be verified through appropriate testing and suitability checks.
- Concrete containing BETOCRETE-CP350-CI must be produced, applied and post-treated according to currently valid construction standards.
- In rare cases, BETOCRETE-CP350-CI can influence the solidification behaviour of concrete. RUXOLITH-T5 (VZ) is available as a system-compatible product for controlling the concrete’s setting behaviour if needed.
Why Choose BETOCRETE-CP350-CI from Aquafin Pakistan?
For contractors and developers looking for the best waterproofing companies in Pakistan, Aquafin Pakistan supplies BETOCRETE-CP350-CI along with the technical guidance needed to achieve proper dosing, mixing and application. Whether it’s a housing project, commercial development, or major water infrastructure, this crystalline admixture provides built-in protection against water ingress and corrosion — right from the concrete mixing stage.
Frequently Asked Questions (FAQs)
Q1: What size of cracks can BETOCRETE-CP350-CI heal?
It can actively heal surface cracks and continuous cracks up to 0.4 mm.
Q2: Is BETOCRETE-CP350-CI safe for drinking water applications?
Yes, it is suitable for drinking water applications in accordance with DVGW worksheet W-347 and W-270.
Q3: What is the recommended dosing rate for BETOCRETE-CP350-CI?
Dosing generally ranges from 0.75% to 1.25% by weight relative to cement, depending on the water/cement ratio, with a maximum dosing level of 1.25%.
Q4: Can BETOCRETE-CP350-CI be used with all cement types?
No, the use of CEM III/B & C cements is prohibited and lignite fly ash has only limited suitability.
Conclusion
BETOCRETE-CP350-CI stands out as a reliable, integral solution for concrete waterproofing needs across Pakistan. With its crystalline self-healing technology, corrosion inhibition and improved frost resistance. For foundations, water-retaining structures and infrastructure projects that demand long-term durability, this admixture offers a proven, standards-compliant solution.
Looking for a lasting roof leakage solution or a trusted waterproofing partner in Pakistan? Get in touch with Aquafin Pakistan for expert advice, correct dosing guidance and reliable product supply.
Visit us at www.aquafinpakistan.com to learn more or request a consultation.
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