CONTRACK powered by SIKA

At CONTRACK, we knew from the outset that innovation must go hand in hand with experience. Our technology arose from a technological debate and the exchange of experiences and expectations among designers, managers, clients, and specialists in various infrastructure-related fields. Our development is based on cooperation with Sika Poland, a solid global leader in construction chemicals and a provider of proven infrastructure solutions. 

From ideas to proven solutions

Every element of CONTRACK technology is created through a dialogue between design, prefabrication, material selection, and construction. It's a living and scalable technology—although we started with a tram turnout, CONTRACK allows us to develop solutions for subsequent infrastructure segments. We systematically deliver new solutions and expand our capabilities. This is possible thanks to our strong, direct technological collaboration with SIKA Poland.

Thanks to close collaboration, we are able to not only develop new solutions faster but, above all, select proven material technologies for them. Instead of starting from scratch, we build on the foundation of experience from projects implemented around the world.

A partnership that accelerates innovation

Collaborating with SIKA provides access to knowledge that allows you to make better decisions—faster and with greater confidence. It's not just about specific materials, but also about understanding how they behave over time, how they react to loads, and how they perform under various operating conditions. This means that CONTRACK solutions are not an experiment—the result of a conscious selection of technologies that have already been globally tested in practice. Expert advice from SIKA experts allows us to select the best possible solutions to support infrastructure sustainability. By exchanging experiences, we define new goals together, driving the development of further innovations for sustainable infrastructure. 

Common goal: reliable infrastructure

Every infrastructure project is a responsibility—for the durability, safety, and operation of the entire system. That's why at CONTRACK, we don't develop technology in isolation. We base it on collaboration and the exchange of experiences, combining knowledge from various industries and markets. This approach allows us to create solutions that are refined, predictable, and ready for real-world investment challenges. We share common goals with Sika: robust solutions for reliable, long-lasting, and innovative infrastructure. 

Common achievements

SIKA products are one of the key components of CONTRACK technology, contributing to the reduction of installation time for rail-road infrastructure. The technological partnership between CONTRACK and SIKA has enabled, among others:

• a significant acceleration of the installation of the entire turnout junction at Plac Zawiszy in Warsaw: as many as 121 large-format prefabricated slabs with a total area of 1,600 m² installed in just 5 weeks;

• the implementation of a rapid-track reconstruction system, combining advanced technology with optimized logistics;

• regular interdisciplinary meetings of specialists working on new solutions for responsible, cost-efficient, and modern transport;

• numerous CONTRACK technology projects delivered.

With CONTRAC powered by SIKA are delivered complete modules to the construction site and assemble them precisely in place, both in plan and cross-section.

The Embedded Rail System, using Sika® Icosit® KC 350/45 (or 340/45), is embedded in the prefabricated panels, creating an integrated track and road superstructure. After the precast panels are aligned in plan and profile, they are grouted with fast-setting, self-leveling Sika® Grout® mortars. The appropriate selection of materials allows for timely and efficient construction to meet specific requirements.

The use of ERS with Sika Icosit KC 350/45 allows the completed rail fastening system to be put into service (including vehicle traffic) 2 hours (at +20°C) after application. Tests of the Embedded Rail System using Sika® Icosit® KC 350/45 in accordance with EN 17319:2020-10 Railway applications – Infrastructure – Performance requirements of rail fastening systems for tramways confirmed compliance with the requirements for track categories: A+ and A. Sika® Icosit® KC 350/45 machine application is fast (up to 500 kg per hour) and efficient, guaranteeing very high quality and minimizing material waste, significantly reducing the environmental impact of the work. Joints between precast panels are filled almost to the full depth, also using machine-applied Sika® Icosit® KC 350/45 also.

A wide range of Sika® Grout® products: 4R, 8R, 9200, or 9400, also significantly reduce construction time thanks to their rapid curing process. For example, the compressive strength at +20°C of Sika Grout 9200 exceeds 45 MPa after 16 hours, and the fully cured product meets the requirements of standards (DIN EN 206-1/DIN 1045-2) for exposure classes: XO, XC4, XD3, XS3, XF4, XA2, and WF.

CONRACK powered by SIKA is a solution developed using the full range of Sika materials and technologies, ensuring long-term track durability.

The Embedded Rail System using Sika® Icosit® KC products is based on resilient, flexible, moisture-resistant, non-absorbent, and frost-resistant materials. These, combined with shear-resistant joints, tolerance compensation, and very high stray current insulation, provide vibration and secondary noise damping, ensuring a long track life.

The use of products with very short curing times allows work to be carried out during very short downtimes.