Building Stronger Pavement Foundations

The long-term performance of any asphalt or tarmac road depends on the quality of the foundation beneath it. Weak subgrades, poor ground conditions and construction traffic can all compromise pavement performance if not addressed correctly.

Lotrak® Geosynthetic's can provide one or more key functions within the pavement foundation:

• Separation – preventing the intermixing of aggregate and subgrade soils.
• Filtration – allowing water to pass while retaining fine soil particles.
• Reinforcement – improving load distribution and helping maintain aggregate integrity.
• Stabilisation –  enhancing the performance of aggregate layers over weak ground. The result can be improved constructability, reduced aggregate requirements and increased confidence in long-term pavement performance.

The result can be improved constructability, reduced aggregate requirements and increased confidence in long-term 
pavement performance.

Solutions for CD 225 Pavement Foundations

Modern road designs increasingly follow the principles outlined within National Highways CD 225 – Design of Pavement Foundations. Achieving the required foundation performance can be challenging, particularly where weak or variable ground conditions exist. That’s where we come in!
Lotrak® woven geotextiles, nonwoven geotextiles and biaxial geogrids can be incorporated into pavement foundation designs to support the creation of stable working platforms and engineered foundation layers.

Supporting BS 8661 Recommendations

BS 8661 provides guidance on the use of geotextiles and geotextile-related products in civil engineering applications.
Lotrak® geosynthetics are manufactured to deliver consistent mechanical and hydraulic performance, helping designers select products appropriate for separation, filtration and reinforcement functions within pavement constructions.

Our experienced technical team can help identify suitable solutions in line with recognised industry practices and project performance requirements.

The Lotrak® Paved Roads Product Range

Lotrak® Woven Geotextiles
Designed to provide excellent separation and reinforcement performance within road foundations, helping preserve aggregate integrity and maintain pavement performance.

Lotrak® Nonwoven Geotextiles
Providing effective filtration and separation where drainage and soil retention are critical design considerations.

Lotrak® Biaxial Geogrids
Engineered to stabilise aggregate layers through mechanical interlock, improving load distribution and enhancing foundation performance on challenging ground conditions. We are that confident with our product performance, that why Lotrak® geogrids have a 100 year product design life.

Stronger by Design Service
Every project is different. That's why our Stronger by Design approach combines geosynthetic expertise, practical application knowledge and technical support to help deliver efficient pavement foundation solutions. From local access roads, working platforms to major infrastructure projects, our team can help you select the right Lotrak® solution for your paved road application.

Talk to our technical team today to discuss your pavement foundation requirements.