Polyester fibers in addition to a common polymer fiber fineness , high strength , easy dispersion characteristics, but also has outstanding high temperature performance, can be widely used in hot mix asphalt concrete , can also be applied to enhance the cracking of high strength concrete , is the ideal multi reinforcements .
Polyester main role :
1, to improve the high temperature stability , so that stability of fiber asphalt concrete has been greatly improved.
2 , improve the low temperature cracking resistance , effectively resist shrinkage stress , low temperature cracking resistance mix enhancements , reduce temperature shrinkage cracks and can prevent the development of reflective cracking .
3 , to improve the fatigue resistance of asphalt pavement in the outside temperature environmental effects , after mixing polyester fibers, monofilament reinforced the role of the mix evenly distributed in to increase the stiffness modulus , improved resistance of asphalt concrete fatigue performance.
4, to improve water stability of asphalt pavement is the water stability of asphalt pavement in the presence of water , subjected to repeated traffic loading and temperature rise indented .
Polyester main functions :
Improve the adhesion of the mixture of
Improve the high temperature stability of the mix
Stiffening effect
Toughening effect
Improved temperature stability
Improve the low temperature cracking resistance
Improved resistance to fatigue
Extend the pavement life
Polyester Applications:
For Old Asphalt Concrete Pavement Overlay
For old and new concrete overlay ( white + black )
For the new asphalt concrete pavement overlay
For concrete, steel bridge mask surface ( steel + black )
Establish air film ( waterproof layer ) in bridge
Reinforcement and repair of road
Strengthening the runway and apron
Strengthening the road along the
Construction suggestions:
For highways
( Day and night traffic ) traffic density blending amount
<3000 1-2kg / t
3000-30000 2.5-4kg / t
> 30000 4kg / t
For bridge deck
Pressure levels 2.5kg / t
Wear layers 3.5kg / t