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70 AC Asphalt cement AFM Atomic force microscopy AMPT Asphalt mixture performance tester APA Asphalt pavement analyzer ATR Attenuated total reflectance BB Bio-oils/biobinders BBR Bending beam rheometer BMG Bio-modified gilsonite CRM Crumb rubber modifier Da Daltons, molecular weight in g/mole DENT Double-edge notched tension DLS Dynamic light scattering DSC Differential scanning calorimetry DSR Dynamic shear rheometer DTA Differential thermal analysis E* Dynamic modulus ELSD Evaporative light scattering detector EVA Ethylene-vinyl acetate copolymer ExBBR Extended bending beam rheometer FID Flame ionization detector FTIR Fourier transform infrared spectroscopy GPC Gel permeation chromatography GTR Ground tire rubber HDPE High-density polyethylene HMA Hot-mix asphalt IR Infrared ACRONYMS AND ABBREVIATIONS
71 Jnr Nonrecoverable creep compliance LDOTD Lousiana Department of Transportation and Development LDPE Low-density polyethylene LMS Large molecular size LTRC Louisiana Transportation Research Center MMS Medium molecular size MOT Ministry of transportation MS Mass spectroscopy MSCR Multiple stress creep recovery MW Molecular weight NMR Nuclear magnetic resonance NR Natural rubber PADD Petroleum Administration for Defense Districts PAH Polycyclic aromatic hydrocarbon PAV Pressure aging vessel PE Polyethylene PET Poly (ethylene terephthalate) PG Performance grading PMA Polymer-modified asphalt PPA Polyphosphoric acid PRP Polymer-rich phase QC Quality control RA Recycling agent RAP Recycled asphalt pavement RAS Recycled asphalt shingles REOB Refined engine oil bottoms RET Reactive elastomeric terpolymer RTFO Rolling thin-film oven
72 SANS Small angle neutron scattering SARA Saturates, aromatics, resins, and asphaltenes SAR-AD Saturates, aromatics, resins, and asphaltene-determinator method SAXS Small angle X-ray scattering SB Styrene-butadiene diblock copolymer SBR Styrene-butadiene rubber SBS Styrene-butadiene-styrene triblock copolymer SEM Scanning electron microscopy SFA Soy fatty acids SMS Small molecular size STOA Short-term oven aging TFO Thin-film oven Tg Glass transition temperature TGA Thermogravimetric analysis TLC Thin layer chromatography TSR Tensile strength ratio UV Ultraviolet spectroscopy VDOT Virginia Department of Transportation VPO Vapor pressure osmometry WMA Warm-mix asphalt XRF X-ray fluorescence spectroscopy
