S&P recommended the use of S&P Carbophalt^® G combined with a high-strength SMA surface layer over the entire surface and the City Road Administration (ZDM) of Warsaw accepted the recommendation and "took the risk" of trying a new solution to resolve the recurring problems on the road. 

In November 2006, the damaged road surface was milled to a depth of 4 cm, leaving approximately 1 cm of old asphalt on top of the existing hexagonal paving blocks. S&P Carbophalt^® G was then installed onto bitumen tack coat on top before being covered with a 4 cm SMA asphalt layer wearing course.

2016 Project Tracking

Problem-free After 10 Years

As the goal of the project was to increase the durability of the road, S&P continued to track the condition of the road during the following years - ultimately with great results. Even 10 years later in 2016, the road condition was still great meaning that the S&P asphalt reinforcement grid had definitely served it's purpose and significantly increased the service life of the road as well as protecting the new wearing course from crack propagation from the subgrade - especially when considering the previous re-paving cycles of 3 years.

The increase in durability of the road was not surprising considering the solution provided. S&P asphalt reinforcement grids serve to distribute the traffic load and shear forces that occur in the pavement structure. This ultimately helps to prevent the formation of microcracks, which when formed often lead to wider damage and cracking which becomes visible on the surface. Not only that, but in the this particular case the premium properties of carbon fibre in S&P Carbophalt^® G helped to increase the stiffness of the asphalt construction, as a result of the large force absorption capacity of the fibres.

CO₂ Emission Savings (based on 10 years of verified performance)

With the knowledge that the road required re-paving every three years prior to the intervention with S&P asphalt reinforcement grids, we were able to use this information to perform a calculation comparison utilising Global Warming Potential figures from various national databases. By implementing the solution provided by S&P, CO₂-equivalent emissions were reduced by approximately 60% in material usage alone on this project over the observed 10-year period. This calculation focuses solely on materials; the actual CO₂ savings would be significantly higher when factoring in additional activities such as milling, transport and general jobsite operations associated with repeated repair cycles.

2025 Project Tracking

Validated Performance After 19 Years

To further document the long‑term impact of the rehabilitation works, S&P revisited the site in 2025—almost two decades after installation. The pavement reinforced with S&P Carbophalt^® G continues to exhibit excellent performance, with the reinforced areas remaining free from reflective cracking and early deterioration. This new validation reinforces the proven durability of the system and demonstrates how S&P’s reinforcement solutions can significantly extend the lifespan of asphalt pavements, even under demanding urban traffic conditions.

Updated CO₂ Emission Assessment (based on 19 years of verified performance)

The original environmental calculation was based on a 10‑year service period. Following the 2025 site inspection confirming continued pavement integrity after 19 years, the analysis has been recalculated to reflect the actual extended lifespan achieved.
Considering the maintenance works that would typically have been required over a 19‑year period without reinforcement, the S&P Carbophalt^® G solution has delivered a reduction of approx. 77% in CO₂‑equivalent emissions. In line with the 2016 assessment, this calculation focuses solely on materials; the actual CO₂ savings would be significantly higher when factoring in additional activities such as milling, transport and general jobsite operations associated with repeated repair cycles.
The result highlights the significant sustainability benefits of using asphalt reinforcement—reducing material consumption, lowering transport and construction emissions and minimising environmental impact over the full life cycle of the pavement.