As one major application of crumb rubber, rubber modified asphalt could have the largest market for waste tire recycling. Moreover, this application could result in an important improvement for road construction technology.
Rubber modified asphalt has been known to improve the rheological properties at low and high temperatures and provide a life up to three times longer than conventional asphalt. Even though rubber modified asphalt may cost up to 100 % more than regular asphalt, the advantages may justify the added cost.
Recent studies have shown that chemically-modified crumb rubber asphalt can overcome several problems with rubber modified asphalt and improve the required properties for road construction.
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