Durawhisper
2Pages

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Catalog excerpts

Durawhisper - 1

Product Information Sheet Lafarge Asphalt is committed to being the leading developer and supplier in North America, of innovative asphalt products designed to optimize quality, performance, durability and sustainability. Durawhisper™ utilizes crumb rubber to modify the asphalt cement binder to provide a thin asphalt overlay specifically designed to reduce noise. Product Overview FOAM NOZZLE Durawhisper™ consists of a 10 mm, nominal size, dense graded asphalt mixture designed with 2 to 4% air voids. The aggregate particle shape and the design of the stone skeleton provide excellent rutting resistance, whilst providing excellent vehicle traffic noise reducing characteristics. Crumb rubber is added to the asphalt mix, which is beneficial for improved durability and long term performance, particularly when subject to heavy slow moving traffic. The combination of the crumb rubber additive and the use of a polymer modified binder provide increased resistance to reflective cracking initiated when paving overlays to existing concrete slabs. The traffic noise reducing properties make Durawhisper™ ideal for surfacing in and around subdivisions and general residential are

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Durawhisper - 2

Technical Details „ Durawhisper™ surfacing provides Reduced Tire Noise „ Durawhisper™ provides improved resistance to surface initiated cracking and improved resistance to fatigue and reflection cracking „ Durawhisper™ gives improved rutting resistance „ Durawhisper™ results in reduced life cycle costing and lower pavement maintenance costs Performance The operation of the hot mix plant is essentially same as conventional HMA mixes, however the introduction of crumb rubber requires additional, specialised equipment. Tire Rubber Crumb Asphalt can be added in 2 ways: 1) Wet Process - Asphalt...

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