
Relevant Applications

» Stress Absorbing Membrane
» Stress Absorbing Membrane Interlayer
Brochure
» Fibermat (PDF, 569 KB)
Whitepapers
» A Four-Year Performance Review
FiberMat is a pavement preservation technique which produces sufficient tensile strength and flexibility to absorb movements in the pavement structure and can prevent the pavement from cracking.
Where permanent lateral movement of the overlay might occur - due to cracks in the underlying material - FiberMat reduces the magnitude of the resulting strain in the overlay by spreading it over a greater area.
While conventional stress absorbing membranes simply relieve stress, FiberMat acts as a cushion. Its thickness absorbs stresses, thereby posing as a true stress absorbing membrane.
FiberMat is the ultimate crack inhibiting and sealing membrane; a combination of polymer-modified asphalt emulsion, chopped glass fiber strands and aggregate. This combination creates a robust membrane that absorbs stresses generated in the pavement structure yet ductile and continuous to form a waterproofing barrier against the ingress of water.
FiberMat has two different forms referred to as Type A and Type B. Type A is known best as an enhanced chip seal membrane, whereas Type B is known as a SAMI (Stress Absorbing Membrane Interlayer).
The tensile strength of FiberMat has been proven to absorb pavement movements and strains. This layer will effectively flex instead of crack. Tests have concluded that FiberMat enhances the tensile strength and fatigue performance by 30% and wheel-track cracking rate by 300%. Propagation of cracks is delayed 3-4 fold in laboratory testing versus control specimens and indicators of 10 or more times from field specimens.
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