..., and (6) industry acceptance. asphalt adhesion attachment ballast attachment mechanical attachment bitumens built-up roofing rubber calendering chlorosulfonated polyethylene coal tar fluid applied coatings composites elastomers elongation ethylene/propylene/diene terpolymer flexibility...

... it attractive now to consider full-scale field tests to evaluate the performance of the recycled pavements under actual road conditions. bitumens flexible pavements circulation asphalts sulfur softening agents additives fatigue (materials) variations softening points Marshall properties density...

... control, and the life expectancy of a recycled asphalt surfacing need be no less than that of a surfacing prepared from entirely new materials. bitumens flexible pavements recycled asphalt paving asphalts rutting mechanical properties voids water absorption fillers N. H. Taylor' Life...

... consistency of the asphalt in the recycled pavement. A simple formula and two nomographs are presented as aids for the design engineer. bitumens reconstituting recycling reclamation flexible pavements asphalts interim specifications durability consistency design nomographs D. D. Davidson...

... of paraffinic oils. A procedure is presented for bracketing the amount of modifier required to soften an asphalt to a desired consistancy, and data are supplied which demonstrate the utility of this procedure. bitumens flexible pavements asphalts recycling asphalt modifiers Rostler analysis clay-gel...

... can be used to design recycled mixtures is presented. Future work will lead to modifications of this procedure. However, at present it is felt that the procedure is practical and capable of being used routinely. bitumens flexible pavements blackbase bituminous concretes recycling mixture...

... indicate that suitable bituminous mixtures can be produced by central plant recycling operations. Performance of pavements containing recycled mixtures appears to be suitable. bitumens flexible pavements pavement recycling mixture properties serviceability index pavement performance resilient...

... pavement, new mix made with virgin asphalt, and old mix rejuvenated with two commercially available admixtures. Results indicated that old mixtures continued to age rapidly and the rejuvenated mixtures behaved similarly to virgin mixtures. bitumens asphalts recycling pavement mixtures...

... for a Maxwell-Kelvin modified five-parameter model. It is recommended that the use of stiffness values as a function of time together with a power law relation for viscosity is a realistic approach for evaluating low-temperature properties of asphalt cements. bitumens rheology viscosity viscoelasticity...

... range investigated was from 25 to −12°C. Asphalt was examined both as a Newtonian and as a viscoelastic material. bitumens asphalts viscosity particle interaction viscometers £. K. Enslev The Influence of Intermolecular Interactions on Viscosities at Low Temperatures: Forced-Sphere...

... highly crack-susceptible vacuum-flashed residue. bitumens pavements crackin temperature asphalts stiffness nomographs specifications performance evaluation W. J. Gaw' Measurement and Prediction of Asphalt Stiffnesses and Tiieir Use in Developing Specifications to Control Low-Temperature...

... the critical temperature. A creep prediction equation was developed which can be used in predicting thermal stresses and strains of asphalt pavements. bitumens bituminous concretes viscosity temperature fracture creep tension tests modulus of elasticity contraction flexible pavements B. E...

... asphalt counterparts. bitumens asphalts sulfur bituminous concretes durability temperature soaking stiffness A^. G. Shrive and M. A. Ward' Some Low-Temperature Aging and Durability Aspects of Sulfur/Asphalt Concretes REFERENCE: Shrive. N. G. and Ward. M. A . "Some Low-Temperature Aging...

.... At lower temperatures, the ductility values are lower, reproducible, and better defined than the values at higher temperatures determined on long, thin threads of asphalt. Therefore, a specification requirement at a 60°F or lower temperature should provide better criteria. bitumens asphalts...

... procedures which do include measurements for spatial variabilities. fatigue tests flexible pavements cracking damage accumulation spatial variability bitumens J. E. Soussou 1 and F. Moavenzadeh t Statistical Characteristics of Fatigue Damage Accumulation in Flexible Pavements REFERENCE: Soussou...

... bitumens material characterization dynamic tests electrohydraulic equipment triaxial tests J. Morris I and R. C. G. Haas I Dynamic Testing of Bituminous Mixtures for Permanent Deformation Response REFERENCE: Morris,J. and Haas, R. C. G., "Dynamic Testing of Bituminous Mixtures for Permanent...

.... asphalts viscosity pressure Florida capillary method Cannon-Manning method pressure viscosity asphalt viscosity bitumens H. E. Schweyer,^ J. P. Moore,^ and J. K. Ling^ Rheology of Asphalt Cements at 60 C (140 F) REFERENCE: Schweyer, H. E., Moore, J. P., and Ling, J. K. "Rhelogy of Asphalt Cements...

... TFO; but it is just as fast as the RTFO to perform. It is suggested that this new oven exposure be considered as a replacement for the RTFO and interchangeable with the TFO in specifications. asphalt oxidation specifications durability thin films bitumens viscosity viscosity tests R. J...

... the durability of the asphalts. The maximum amount of shear susceptibility that may develop in a paving-grade asphalt prior to pavement failure is indicated in the data obtained. asphalts bituminous cements compaction durability evaluation grading (classifying) shear properties viscosity bitumens...

... conclusions can be drawn. asphalts bitumens pavements specifications durability viscosity thin films G. R. Kemp^ Asphalt Durability Tests and Their Relationship to Field Hardening REFERENCE: Kemp, G. R., "Asphalt Durability Tests and Their Relationship to Field Hardening," Viscosity Testing...