Tuffgrip®
Tuffgrip® is our established thin surface course system (TSCS) and is produced in accordance with the Specification for Highway Works (SHW) 942. It was developed for motorways and other major highways.
Tuffgrip uses high quality, high polished stone value (PSV) aggregates and our specially developed polymer modified bitumen (PMB). Tuffgrip is tough on noise, skid resistance and wet weather spray with a texture that is retained throughout its service life. Tuffgrip is also tough enough to stand up to heavy traffic yet provide an ultra-smooth ride. Tuffgrip is laid by Heidelberg Materials’ contracting division and comes with a 5-year guarantee underwritten by the contractor in accordance with SHW Clause 942.
Tuffgrip can also be produced using Heidelberg Materials’ era 140 warm mix asphalt process, meeting the requirements of current National Highways major network specifications.
Installation
Installation by Heidelberg Materials.
Benefits
- 5-year performance guarantee
- Excellent resistance to deformation
- Enhanced ride quality
- Reduced noise
- Excellent spray reduction
- Reduced CO2 when supplied as era 140
- 100% recyclable
Available with the following options:
era®/CleanAir®/CarbonLock®/AgeLast®/RAP
Applications
- Highways/motorways
- Major projects
- Major local authority networks
Tuffgrip technical data
| Coarse aggregate | |
|---|---|
| Layer thickness Details of constituent quality and layer thickness shown below | |
| Surface texture (on installation) | |
| Road and laboratory test results | |
| Los Angeles abrasion value | 30 max |
| Aggregate abrasion value | As specified in SHW Clause 942 (Appendix 7.1) |
| Flakiness index | 20 max (6mm 30max) |
| Nominal sizes | 6mm; 10mm; 14mm |
| Binder | High performance Polymer Modified Bitumen (PMB) |
| 6mm nominal size | 20 – 30mm |
| 10mm nominal size | 25 – 50mm |
| 14mm nominal size | 35 – 50mm |
| 10mm medium texture | 1.1 – 1.6 mm |
| 14mm medium texture | 1.3 – 1.8 mm |
| (All NH Clause 942 Level 3) | |
| Torque bond | Typical figures +800 KPa |
| Noise reduction | NH Clause 942 |
Typical performance figures
| Material property | Test specification | Typical result |
|---|---|---|
| *Design void content | BS EN 12697-6 | Vmin 1.0% – Vmax 5.0% |
| Water sensitivity | BS EN 12697-12 Method A (ITSR) BS EN 12697-23 | ≥ 80% |
| RTPD (wheel tracking) | BS EN 12697-22 Procedure B WTS in Air | ≤ 1.0mm/103 |
*Where specified in appendix 7/1.
Please see asphalt product matrix for further information or contact technical:
northasphaltsales@uk.heidelbergmaterials.com
southwestasphaltsales@uk.heidelbergmaterials.com
southwalesasphaltsales@uk.heidelbergmaterials.com
southeastasphaltsales@uk.heidelbergmaterials.com
