Sika Sikadur-42 Grout Pak PT

Sika developed the Sikadur-42 Grout Pak PT as a precision-engineered, three-component epoxy grout system. Specifically, this advanced system meets the rigorous demands of post-tensioning anchorage protection. Moreover, manufacturers supply this product in a pre-proportioned kit, which significantly simplifies the mixing process while ensuring consistency and reliability on-site.

Furthermore, the 100% solids, solvent-free formulation delivers exceptional mechanical performance. In addition, this system provides high early and ultimate compressive strength, making it ideal for structural applications where durability remains non-negotiable.

Engineered for Critical Infrastructure Performance

Specifically designed for segmental bridge construction and other critical infrastructure work, this moisture-tolerant grout effectively resists chemical attack, corrosion, and impact—even in harsh environments. Additionally, its low exotherm properties actively reduce peak temperatures during large pours, thereby minimizing the risk of thermal cracking.

Meanwhile, Sikadur-42 Grout Pak PT also provides excellent adhesion to concrete and steel, even in damp or mat-dry conditions. Consequently, this ensures long-term stability and protection of tendon anchorages. With high effective bearing area and low shrinkage, contractors and engineers trust this product for applications requiring both performance and precision.

Key Features That Set Sikadur-42 Grout Pak PT Apart

High Compressive Strength Performance

This system reaches up to 17,500 psi in 28 days, therefore ensuring structural integrity under heavy loads.

Low Exotherm Technology for Deep Pours

Engineers specifically designed this system for large volume applications with controlled heat generation.

Superior Chemical and Corrosion Resistance

The formulation actively resists moisture, chemicals, and corrosion, consequently enhancing longevity of anchorages.

Reliable Adhesion Properties

This grout bonds strongly to concrete and steel—even in damp conditions.

Optimal Flowability and Bearing Area

The system offers over 95% effective bearing area, thus providing uniform support beneath plates.

Extended Working Time

With an extended pot life of approximately 90 minutes, this system allows for ease of placement and reduced waste.

Recommended Applications for Maximum Performance

Primary Post-Tensioning Uses

Engineers recommend Sikadur-42 Grout Pak PT for pour-back boxes and anchorage protection in post-tensioned tendon systems, especially in bridge segmental construction. Moreover, manufacturers specifically formulated this product for grouting around anchorages that require high strength, chemical resistance, and dimensional stability.

Typical Applications Include:

• Pour-back protection for post-tensioned bridge anchors
• High-load industrial anchorages
• Segmental bridge tendon systems
• Epoxy grouting where moisture or chemical exposure occurs
• Grouting under baseplates in dynamic load zones

Frequently Asked Questions About Sikadur-42 Grout Pak PT

What is the primary use of Sikadur-42 Grout Pak PT?

Contractors use this product for anchorage protection in post-tensioned bridge systems, particularly in pour-back boxes for tendons and bars.

Can contractors apply it in damp conditions?

Yes, absolutely. This system tolerates moisture and bonds effectively to damp concrete and steel.

What grout depth range do manufacturers recommend?

The minimum grout depth measures 1 inch, while the maximum reaches 12 inches.

Does this product self-level?

While it has good flowability, it does not self-level. Therefore, contractors require forms to contain the material.

How long does the working time last?

At 73°F (23°C), the working time lasts approximately 90 minutes, thus offering sufficient placement time.

Is there a version better suited for enhanced flow or self-leveling?

Yes. For better flow characteristics, contractors should use Sikadur 42 Grout Pak Standard.