Zobrazeno 1 - 10
of 69
pro vyhledávání: '"RICHARD R. DAVISON"'
Publikováno v:
Petroleum Science and Technology. 29:2258-2268
Nine asphalts, including seven Strategic Highway Research Program asphalts and two Texas asphalts, were aged at several conditions of temperature and oxygen pressure to develop an aging test. Values for a dynamic shear rheometer function, a combinati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc22da9677050ad5319e939157083a5e
https://doi.org/10.1080/10916461003699192
https://doi.org/10.1080/10916461003699192
Publikováno v:
Petroleum Science and Technology. 29:2027-2036
The authors used 9 asphalts oxidized at various temperatures and pressures to determine the hardening kinetics for the DSR function, an easily measured and meaningful surrogate for 15°C ductility that relates well to age-related binder deterioration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e020ca3ab9e9d57c8ee1afb16c6ac03e
https://doi.org/10.1080/10916461003681760
https://doi.org/10.1080/10916461003681760
Autor:
Nasser A. Al-Azri, Sung Hoon Jung, Kevin M. Lunsford, Ann Ferry, Jerry A. Bullin, Richard R. Davison, Charles J. Glover
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 1962:12-20
Aging of binders in pavements is much less understood than laboratory aging of neat binders because of a number of complications. Complications include suitable extraction and recovery methods; uncontrolled variables and unknowns such as mixture char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f8bc02f32a172eee72d37f3bd75f3e0
https://doi.org/10.1177/0361198106196200102
https://doi.org/10.1177/0361198106196200102
Publikováno v:
Fuel. 82:1763-1773
The effect of long-term aging on rheological properties of polymer modified asphalt binders was studied. Modifiers included diblock poly(styrene-b-butadiene) rubber, triblock poly(styrene-b-butadiene-b-styrene), and tire rubber. Asphalt aging was car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22424fa52a1a21f8ca676aa3b37dd76f
https://doi.org/10.1016/s0016-2361(03)00144-3
https://doi.org/10.1016/s0016-2361(03)00144-3
Publikováno v:
Energy & Fuels. 17:991-998
Asphalt binders are complex mixtures of a wide variety of hydrocarbon materials. Added to this complexity in recent years has been modification with a variety of polymer modifiers. Binders used in this study were commercial materials obtained directl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddb51a648575d43e778f75696667a11d
https://doi.org/10.1021/ef020221l
https://doi.org/10.1021/ef020221l
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 1810:9-16
The effects of various aging techniques on asphalt low-temperature properties were investigated in three phases. In Phase I, it was shown that 38 days’ aging of a 1-mm-thick asphalt film at 60°C and 1 atmosphere of air is approximately equivalent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e10f375fd191b7b394da7711052e0ac
https://doi.org/10.3141/1810-02
https://doi.org/10.3141/1810-02
Publikováno v:
Petroleum Science and Technology. 19:317-334
Air blowing is combined with high temperature-high shear mixing to produce a high cure asphalt rubber that differs in several important ways from conventional asphalt rubber material. It has excellent grade-span, good settling properties and low high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a72b861bd901f40b1453029111455c2
https://doi.org/10.1081/lft-100000765
https://doi.org/10.1081/lft-100000765
Publikováno v:
Industrial & Engineering Chemistry Research. 40:1773-1780
Air blowing of asphalt at higher temperature does not greatly impact such parameters as the softening point−penetration relationship. With new Superpave specification, very good grade asphalts can be produced by air blowing, and the blowing tempera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::497ee0155365438c09afd5dcce2c0a4b
https://doi.org/10.1021/ie0005506
https://doi.org/10.1021/ie0005506
Publikováno v:
Chemical Engineering Science. 55:5721-5732
Using a Raney nickel catalyst, the hydrogenation kinetics of liquid-phase acetone, methyl ethyl ketone, methyl n -propyl ketone and diethyl ketone each were investigated via the initial-rate method. Acetone and methyl n -propyl ketone had similar hyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3ea3b9a2f9be735f2fb012eb933456b
https://doi.org/10.1016/s0009-2509(00)00222-0
https://doi.org/10.1016/s0009-2509(00)00222-0
Publikováno v:
Industrial & Engineering Chemistry Research. 39:592-598
The oxidation of asphalt is a major cause of pavement failure. At a given temperature and pressure, the asphalt oxidizes in two stages: (1) a rapid-rate period followed by (2) a long period with constant oxidation rate. The degree of oxidation that o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf5696e47e1bf79977ca7a3d2b9f8e62
https://doi.org/10.1021/ie9906215
https://doi.org/10.1021/ie9906215