TOPCEL® add

Individual solution for asphalt modification

TOPCEL® add are a range of multi-component pellets developed by CFF for use in the production of specific asphalt types. The TOPCEL® add pellets are made from the proven TECHNOCEL® cellulose fibre as carrier material as well as various bitumen-modifying additives depending on product type. You will receive an all-in-one product for the fibre dosage and bitumen modification in one workflow right at the asphalt mixing plant. TOPCEL® add is used around the world in the production of Stone Mastic Asphalt, highly stable asphalt binding layers and other asphalt mixtures.

Advantages of TOPCEL® add FT multi-component pellets:

  • modification and stabilisation of asphalt with only one product and one workflow
  • simple dosage at the asphalt mixing plant by automatic pellet dosing system
  • low temperature mixing is possible
  • more effective compaction up to the critical temperature range
  • improvement of compacting properties, especially at critical weather conditions (compacting agent)
  • improvement of asphalt stability and service life

TOPCEL® add FT60 to reduce the mixing temperatures
TOPCEL® add FT60 is made of 59% cellulose fibre and 41% bitumen additive (FT-wax) for mixing temperature reduction. The main application is the production of low-temperature asphalt (cf. M TA bulletin for temperature-reduced asphalts, 2007). The enclosed FT-wax changes the viscosity of the bitumen so that the mixing temperatures can be reduced by 20°C, depending on paving and weather conditions. The crystalline structure of the additive in the asphalt increases the stability clearly after cooling and prevents the rutting effect considerably.

TOPCEL® add FT75 to improve the paving properties
TOPCEL® add FT75 is made of 75% cellulose fibre and 25% bitumen additive (FT-wax) to improve the asphalt properties during laying process. The main application is the reduction of bitumen viscosity, while the mixing temperature remains at a normal level. This permits an increased effectiveness of compaction up to the critical temperature range. The low viscosity clearly supports manual paving of the asphalt. Lane groove formation is reduced.

Advantages of TOPCEL® add WA multi-component pellets:

  • modification and stabilisation of asphalt with only one product and one workflow
  • simple dosage at the asphalt mixing plant by automatic pellet dosing system
  • improvement of affinity if critical stone aggregates must be used
  • extension of bitumen coating at the stones by around 8% (24h Rolling-Bottle-Test)
  • improvement of bitumen ageing properties

TOPCEL® add WA90 to improve the adhesive properties between bitumen and aggregates
TOPCEL® add WA90 is made of 90% cellulose fibre and 10% adhesion promoter to intensify the adhesive properties between bitumen and aggregates. The improved affinity between the minerals and bitumen guarantees the durability of asphalt surface layers. TOPCEL® add WA90 slows down the ageing behaviour of the bitumen and thus has a positive effect on the service life of the asphalt wearing course.

We supply TOPCEL® add multi-component pellets in:

  • big bags for the fully automatic addition from pellet dosage systems
  • small packages in 3 - 10 kg PE-bags for manual dosage and modification

    • Please observe our dosage recommendations when using TOPCEL® add products. If you have any questions regarding application and product selection please contact our CFF specialists.