Shell Cariphalte AgeSafe
For more durable roads
Well-constructed roads are the lifeblood of any city, connecting people, places and businesses every day. A vital part of the economy, they form some of the most critical infrastructure assets in any country. However, with greater traffic volumes, shorter maintenance windows and stringent requirements, roads are being put under increasing pressure.
What鈥檚 more, with over 80% of customers identifying decarbonisation as a top three priority for their businesses, there is a greater demand for wellestablished, emission-reducing techniques that can produce high quality asphalt for roads
Introducing Shell Cariphalte AgeSafe
Our next-generation premium formula is designed to improve durability by inhibiting oxidation within bitumen to slow the rate at which it becomes stiff and brittle. Roads paved with Shell Cariphalte AgeSafe can then last up to 20% longer than conventional polymer modified bitumen. This reduces the need for and cost of road maintenance and consequently, disruption to road users. With fewer resurfacings required over the lifetime of the pavement, you can also avoid CO2e emissions by up to 10%.*
*Actual benefits may vary according to asphalt formulation and market conditions. No guarantees or warranties provided. Details of data and modelling used to calculate the benefits of Shell Cariphalte AgeSafe are available from your local Shell Bitumen Focal Point and at Technical Knowledge Guide ver.1 2023
Benefits
Longer lasting
Allows roads to last up to 20% longer than asphalt using conventional polymer modified bitumen.
Reduces whole-life cost of road pavements
Extends the service life of the asphalt surface course by up to 3 years, which helps to lower maintenance costs and reduce the number of resurfacings.
Avoided emissions
Avoid CO2e emissions of up to 10% with longer lasting pavement life when compared to asphalt using conventional polymer modified bitumen.
Hear it from our partners and customers
The game changer would be if we could have longer lasting products that are also low in bonded carbon. So that means combining the longer lasting bitumen with things like recycling and bio components.
Matthew Wayman, National Highways
We see Shell Cariphalte AgeSafe as a product that delivers life extension on pavement and therefore that really aligns with our goals and objectives for the next 15 years.
Julien Canton, ConnectPlus
National Road 107 and 312 are the arteries running north south and east-west in China. Demanding requirements are placed on the bearing capacity, service life, and service quality of the pavement. That鈥檚 why we selected Shell Cariphalte AgeSafe, a brand new modified bitumen product
Wang En Cheng, Xinyang National Highway 107 (Beltway) Construction & Management Co., Ltd.
Laboratory studies showed that we were successful in slowing down the ageing across a range of problems that we tested. The statistical average showed that we were able to reduce the ageing by 20%.
Richard Taylor, Shell
Here鈥檚 where we鈥檝e put it to the test
With stakeholders across the supply chain including governments, asset owners, asphalt producers and contractors, Shell Cariphalte AgeSafe has been used in many different locations. These pavements are being monitored to gain a better understanding of how this solution can help road owners work towards decreasing the maintenance cycles over the pavement lifetime.
Tarmac: A43 Northamptonshire, 麻豆传媒
Conclusions from testing carried out on samples from 2021 (year zero) and 2022:
- Shell Cariphalte Ultra AgeSafe showed resistance to ageing after 1 year in service in terms of lower stiffness (G* at 25C).
- Shell Cariphalte Ultra AgeSafe showed lower oxygen uptake after 1 year which indicates lower ageing as compared to the control.
- The stiffness values of cores taken after one year in service indicate that the asphalt stiffness (ITSM) is reduced for the mixture using Shell Cariphalte Ultra AgeSafe when compared to the control.
- More sampling has been carried out in 2023, and testing is underway*.
Hanson, Cumbria, 麻豆传媒
Conclusions from testing carried out on samples from 2021 (year zero) and 2022:
- Results showed little change in chemical analysis: O/C and C-O + S-O Index鈥� between Shell Cariphalte AgeSafe and the control.
- There was also an improvement in rheological stiffness, less increase in G* compared to the control鈥�.
- Testing of cores taken in 2023 is underway*.
Phrae Engineering, Thailand
Conclusions from testing of samples taken in 2021 (year zero):
- The mixture using Shell Cariphalte AgeSafe
showed a lower tendency to ageing compared to conventional Cariphalte resulting in lower stiffness (ITSM) at different temperatures. - Testing of cores extracted after one-year in service, show slower evolution of asphalt stiffness (ITSM) and improved resistance to abrasion loss (Cantabro) of the mixture using Shell Cariphalte AgeSafe when compared to the control section.
*Road trials are being monitored and many more trials will be carried out to evaluate the benefits and performance of Shell Cariphalte AgeSafe technology. Laboratory evaluations are continuing including the use of Shell鈥檚 new pavement testing facility at the Shell Technology Centre in Bangalore.
