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Use Injection Syringes for: Low-pressure injection repair of small concrete cracks in car parks, balconies, concrete walls, pools, and other structural concrete elements.
The Injection Syringe Crack Repair Low Pressure System is a practical and efficient method for addressing small cracks in concrete structures. This system leverages low-pressure injection to ensure thorough penetration of repair materials, effectively restoring the structural integrity of concrete elements. Designed for ease of use and versatility, these syringes can be employed in a variety of settings, from parking garages to residential balconies. The system's compatibility with diverse epoxy products allows for tailored solutions to specific repair needs, providing a reliable and cost-effective approach to concrete crack repair.
Key Features of Injection Syringe Crack Repair Low Pressure System
- Low Pressure Injection: Ensures effective penetration of repair materials into small cracks without causing further damage.
- Versatile Application: Suitable for a wide range of structural repair jobs, including car parks, balconies, concrete walls, and pools.
- Epoxy Compatibility: Syringe is suitable for use with various epoxy products, providing flexibility in material selection.
- Precise Application: Allows for targeted and controlled injection of repair materials, minimising waste and ensuring effective crack filling.
- Durable Repair: Provides a reliable and long-lasting solution for small concrete crack repair.
- Cost-Effective: Offers an efficient and economical method for addressing concrete cracks, reducing the need for more extensive repairs.
Technical Overview
The Injection Syringe Crack Repair Low Pressure System utilises a simple yet effective mechanism to deliver repair materials into concrete cracks. The syringes are designed to hold and dispense epoxy at a controlled low pressure, ensuring thorough crack filling and effective bonding. This low-pressure approach minimises the risk of over-injection and damage to the surrounding concrete, making it an ideal method for small, delicate repairs.
Filling Capacity: 50 ml/cc
Maximum Pressure: 3.0 kgf/cm2
Maximum Length: 225 mm
Minimum Length: 147 mm
Application Information
- Materials Required: Injection syringes, epoxy products (e.g., Sikadur 52), anchoring epoxy (e.g., Sika Anchorfix 1), syringe pedestals, rubber bands (optional), hand grinder.
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Installation Guidelines:
- Clean the surface and remove dust or contamination from the crack.
- Install syringe pedestals (5-6 syringes per meter, 10-20 cm apart depending on crack thickness).
- Secure pedestals with anchoring epoxy, covering the top of the crack. Ensure the product has cured before injection.
- Draw mixed epoxy into the syringe (30cc) and mount the syringe into the pedestal.
- Inject epoxy via the pedestal until flow from the adjacent pedestal or until epoxy stops flowing.
- Attach rubber bands to apply constant pressure if required.
- After epoxy hardens, remove syringes and pedestals and restore surface finish with a hand grinder.
- Trade-Specific Tips: Ensure proper surface cleaning and pedestal installation for effective crack sealing. Monitor epoxy flow during injection to prevent overfilling.
Limitations
- Primarily designed for small concrete cracks.
- Effectiveness depends on the chosen epoxy product and proper application technique.
Safety precautions when using Injection Syringe Crack Repair Low Pressure System:
- Personal Protective Equipment: Wear appropriate gloves, safety glasses, and respiratory protection if necessary, in accordance with the safety data sheets of the epoxy products being used.
- Epoxy Handling: Follow safety instructions provided by the epoxy product manufacturer. Avoid skin and eye contact.
- Surface Preparation: Ensure proper cleaning and preparation of the crack area.
Frequently asked questions
What type of cracks does this syringe system repair?
This system is designed for small concrete cracks in structural elements. It provides controlled epoxy delivery to ensure thorough filling without excessive pressure.
What is the maximum pressure for epoxy injection?
The syringe is rated for a maximum injection pressure of 3.0 kgf/cm². This low-pressure delivery helps to prevent hydraulic fracturing of the concrete.
What other materials are required for crack repair?
You will need an epoxy product such as Sikadur 52, an anchoring epoxy like Sika Anchorfix 1, syringe pedestals, and a hand grinder for surface preparation and finish.
How are the syringe pedestals installed for injection?
Install pedestals 10-20 cm apart, typically 5-6 per linear metre of crack, depending on crack thickness. Secure them with anchoring epoxy and seal the crack surface between them.
Applications and benefits
| Application | Key benefit | Primary trades |
|---|---|---|
| Small structural concrete crack repair | Ensures deep epoxy penetration up to 3.0 kgf/cm² without damaging the concrete. | Concrete repairers, structural engineers |
| Crack repair in car park slabs | Restores integrity to concrete surfaces, extending asset life. | Building maintenance, concrete contractors |
| Balcony and concrete wall crack remediation | Provides a controlled method for repairing cracks in vertical or overhead applications. | Builders, facade repair specialists |
| Pool concrete shell crack sealing | Allows precise epoxy delivery to seal small cracks in water-retaining structures. | Pool builders, concrete repairers |
How to apply Injection Syringe Crack Repair Low Pressure System:
- Surface Preparation: Clean the surface and remove any dust or contamination from the crack.
- Pedestal Installation: Install the syringe pedestals, generally 5 to 6 syringes per meter. Crack thickness will determine the distance apart, usually (10 – 20 cm).
- Pedestal Securing: Using an anchoring epoxy (e.g., Sika Anchorfix 1), secure the pedestals in place and cover the top of the crack. Ensure the product has cured before injection.
- Epoxy Preparation: Draw the mixed epoxy (e.g., Sikadur 52) inside the syringe (30cc).
- Epoxy Injection: Mount the syringe into the pedestal. Inject epoxy via the pedestal until there is flow from the adjacent pedestal or until the epoxy stops flowing.
- Pressure Application: Attach the rubber bands to apply a constant pressure if required.
- Finishing: When the epoxy has hardened, remove the syringes and pedestals and restore surface finish with hand grinder.
Product limitations
- Not for: Large structural cracks where a low-pressure system may not be sufficient for full penetration or load transfer.
- Not for: Cracks subject to significant movement beyond the chosen epoxy's capacity, as the syringe delivers the epoxy only.
- Effectiveness: Dependent on the choice of epoxy product and correct application technique for that specific epoxy.
Safety and handling
This syringe is an application tool. Always consult the Safety Data Sheet (SDS) for the epoxy product being injected and follow its specific safety, handling, and first aid instructions.
Personal protective equipment
Wear appropriate gloves, safety glasses, and respiratory protection if required by the epoxy manufacturer's SDS.
Ventilation
Ensure adequate ventilation, especially when working with epoxies in enclosed spaces, as specified by the epoxy manufacturer's SDS.
Storage and disposal
Store syringes in a cool, dry place away from direct sunlight. Dispose of used syringes according to local regulations, considering any epoxy residue.
Substrate guide
Proper surface preparation is essential for effective crack repair and bond strength of the epoxy system.
Concrete
Surface prep: Grind the crack area clean and free from dust, loose material, and contaminants. Ensure the crack is dry before proceeding.
Primer: Not required for the syringe itself. The specific epoxy product chosen for injection may require or benefit from a primer as per its manufacturer's instructions.
Injection Syringe Physical Properties
| Property | Value |
|---|---|
| Max Pressure | 3.0 kgf/cm2 |
| Filling Capacity | 50 ml/cc |
| Length | 147 mm |
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