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Sika CarboDur Shear L | MCT CHEMICALS | SIKA PAKISTAN PRIVATE LIMITED

Sika CarboDur® Shear L is a high-performance carbon fiber reinforced polymer (CFRP) laminate designed for strengthening and reinforcing concrete structures. It provides exceptional shear capacity and is specifically engineered for the structural reinforcement of concrete, masonry, and other load-bearing materials. Sika CarboDur® Shear L is lightweight, easy to apply, and highly resistant to environmental factors such as moisture, chemicals, and temperature fluctuations. This solution is part of Sika’s advanced carbon fiber composite systems that offer a cost-effective, durable alternative to traditional steel reinforcement methods.

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Usage:

Sika CarboDur® Shear L is used for:

  1. Shear Reinforcement: Strengthening concrete structures by enhancing their shear capacity, especially in beams, columns, and slabs.
  2. Structural Strengthening: Used for reinforcing structures that have become weakened over time due to age, load increase, or damage from environmental factors.
  3. Bridge and Infrastructure Repair: Ideal for the repair and reinforcement of bridges, tunnels, and other civil engineering structures to restore or improve their load-bearing capacity.
  4. Strengthening Existing Concrete Structures: Ideal for upgrading and reinforcing buildings, particularly in applications where space constraints make traditional reinforcement techniques difficult.
  5. Seismic Retrofit: Used to reinforce structures that require seismic retrofitting, providing additional strength and stability to meet updated building codes.
  6. Temporary Load Capacity Enhancement: Ideal for enhancing the temporary load capacity of structures during construction or renovation activities.

Advantages:

  1. Lightweight and Easy to Handle: The carbon fiber laminate is lightweight, making it easy to transport and install, while also reducing the overall weight added to the structure.
  2. High Strength-to-Weight Ratio: Offers superior shear reinforcement with a minimal increase in the weight of the structure, unlike traditional steel reinforcement.
  3. Corrosion Resistance: The carbon fiber material is highly resistant to corrosion, ensuring long-term durability even in harsh environmental conditions like moisture, chemicals, and aggressive environments.
  4. Quick and Easy Installation: The product is simple to install with minimal disruption to ongoing operations, reducing downtime and labor costs.
  5. Non-Invasive Application: Sika CarboDur® Shear L is applied externally to existing structures without the need for invasive construction work, making it ideal for retrofit and repair projects.
  6. Long-Term Durability: The carbon fiber laminate is highly resistant to fatigue, wear, and environmental degradation, offering a long-lasting solution for structural reinforcement.
  7. Cost-Effective: Offers a cost-efficient alternative to traditional methods like steel reinforcement, reducing both material and installation costs.
  8. Flexible and Versatile: Can be used in various structural applications, including vertical, horizontal, and overhead surfaces, providing versatile reinforcement capabilities.
  1. Coverage:

    Sika CarboDur® Shear L is a carbon fiber reinforcement system designed for strengthening concrete and masonry structures. The coverage for this product depends on the application area, but generally, 1 linear meter of Sika CarboDur® Shear L sheet will cover approximately 0.3 to 0.5 m² depending on the thickness and application method. The actual coverage will vary based on the required number of layers and resin consumption, as well as the size of the area being reinforced.

    Application:

    1. Surface Preparation: Clean the substrate to remove any dirt, dust, oils, or any loose material that might impair adhesion. The surface should be dry, stable, and free of contaminants.
    2. Priming: Apply the appropriate primer (Sika® Primer) to improve the adhesion of the Sika CarboDur® Shear L sheets to the substrate.
    3. Cutting the Sheets: Cut the Sika CarboDur® Shear L carbon fiber sheets to the required lengths based on the design specifications.
    4. Resin Application: Apply the resin (such as SikaWrap® Resin or SikaDur®) to the prepared surface using a brush or roller. While the resin is still wet, place the carbon fiber sheets onto the surface, ensuring that they are thoroughly embedded and free from air pockets.
    5. Layering (if necessary): If additional strength is required, apply more layers of Sika CarboDur® Shear L, repeating the resin application process.
    6. Curing: Allow the resin and carbon fiber system to cure according to the manufacturer’s instructions (typically 24 to 48 hours, depending on temperature and humidity).
    7. Inspection: After curing, inspect the applied reinforcement system to ensure the sheets are firmly bonded and that no areas were missed.
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