WHAT IS SUPER FIBER MIX DESIGN (SFM)
Forta-Fi® Fiber-Reinforced Asphalt Concrete Mix Design (FRAC) or also known as Super Fiber Mix Design (SFM) and Asphaltic Concrete + (AC+) is a mixture of hot asphalt and high tensile strength synthetic fiber blend formulated to reinforce asphalt mixes.
WHAT IS CHARACTERISTICS OF SYNTHETIC FIBER
WHAT IS SUPER FIBER MIX DESIGN (SFM) ADVANTAGES
TABLE 1
Forta-Fi® Fiber-Reinforced Asphalt Concrete Mix Design (FRAC) is a mixture of continuously graded aggregate infused with FORTA-FI® fiber additives
and binder material (bitumen). FRAC offers the following benefits (Refer TABLE 1):
i) Improved resistance to rutting
ii) Improved resistance to fatigue cracking
iii) Improved material properties – tensile strength, resilient modulus, stability, stiffness
and resistance to permanent deformation
iv) Improved adhesion of binder to aggregates and also aggregates to aggregates.
v) Increased durability of the asphalt
HOW SUPER FIBER MIX DESIGN USED IN CONSTRUCTION
1. Mill & pave 110: 50mm SFM14, 60mm AC28
2. Spraying of Tackcoat
3. Fiber distribution on Paver
4. Temperature check on Paver
5. Temperature check before compaction must be less than 130C
6. Rolling pattern follows Normal AC Mix (2-2-10-2 or 2-2-12-2)
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