Fibrous additive for asphalt paving compositions

Details Fibrous additive for asphalt paving compositions Fibrous additive for asphalt paving compositions

1997-05-14

1999-04-27

Edwards, Newton

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Staple length fiber

428402, D02G 300

Patent

active

058979506

ABSTRACT:
The present invention describes a fiber material for use in mastic asphalt in roadbuilding for stabilizing the binder during transport, storage and incorporation, said fiber material being a macromolecular product including at least 95% of polyethylene terephthalate, the diameter of the individual fibers being .gtoreq.0.1 mm, the length to diameter ratio exceeding 5 on average, and the particle size distribution, measured as sieve passthrough as per the draft code of practice for the supply and testing of stabilizing materials in asphalt road construction in line with TP Min-StB Part 6.3.2, producing a proportion of at least 90% for the fractions .ltoreq.0.71 mm and at least 70% for the fractions .ltoreq.0.4 mm, and this product being manufactured by comminution from waste materials based on polyethylene terephthalate monofilaments.

REFERENCES:
patent: 3867332 (1975-02-01), Chimura et al.
patent: 4092458 (1978-05-01), Hoffman
patent: 4663370 (1987-05-01), Marvel, Sr. et al.
patent: 5278254 (1994-01-01), Furuta et al.

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