Recycling of asphalt mixtures containing crumb rubber. Final report, 1 September 1994-30 August 1997
An investigation of the effects of Crumb Rubber Modifier (CRM) on asphalt binder and mixture properties was conducted to determine whether or not CRM would have a detrimental effect on the properties of recycled paving mixtures containing CRM RAP. Although CRM increased the viscosity and lowered the temperature susceptibility of the binder, the effect was not pronounced at CRM of 12 percent or less. Recycled structural asphalt mixtures containing 50 percent RAP with 12 percent CRM had essentially the same shear strength and air void content properties as a conventional asphalt mixture without any CRM. However, mixtures containing 18 percent or more CRM could have different properties which may affect recycling operations.
- Research Organization:
- Scientists` Inst. for Public Information, New York, NY (United States)
- OSTI ID:
- 529857
- Report Number(s):
- PB-97-188304/XAB; CNN: Contract B-9083; TRN: 72471631
- Resource Relation:
- Other Information: DN: Also pub. as Florida Univ., Gainesville. Dept. of Civil Engineering rept. no. REPT-49104504495-12; PBD: May 1997
- Country of Publication:
- United States
- Language:
- English
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