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*Cellulose Fibre
SAMIcel
SAMIcel is a cellulose fibre product which is used as a stabilising agent in the manufacture of Stone Mastic Asphalt (SMA), SAMI Bitumen Technologies FricSeal, and other asphalt mixes such as porous asphalt (open-graded asphaltic concrete). It is produced from long wood based cellulose fibres, which have very strong absorbent capabilities. SAMIcel fibres absorb a significant amount of the free binder within the mix, which results in a coating of uniform binder film thickness around the aggregate surfaces.
Benefits
The inclusion of SAMIcel avoids the problems of binder drainage or "drain-down" through the material during transportation from production plant to site, and also during the paving operation and compaction of the mix. Generally 0.3% (by weight) is added during the manufacturing process. This results in the stability of the binder coating on the aggregate, and ensures the binder is held in suspension within the voids throughout the laying operation and continues to do so throughout the operational life of the mix.
More information
For more information about SAMIcel contact SAMI Bitumen Technologies.