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ASTM Selected Technical Papers
Viscosity Testing of Asphalt and Experience with Viscosity Graded Specifications
By
WG Gunderman
WG Gunderman
1
Engineer of Materials and Construction, Highway Research Board, National Academy of Sciences
, Washington, D. C., 20418
; symposium chairman
.
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ISBN-10:
0-8031-0777-3
ISBN:
978-0-8031-0777-9
No. of Pages:
128
Publisher:
ASTM International
Publication date:
1973
eBook Chapter
Rheology of Asphalt Cements at 60 C (140 F)
By
HE Schweyer
,
HE Schweyer
1
Professor and graduate students
, respectively, Department of Chemical Engineering, University of Florida
, Gainsville, Fla. 32601
.
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JP Moore
,
JP Moore
1
Professor and graduate students
, respectively, Department of Chemical Engineering, University of Florida
, Gainsville, Fla. 32601
.
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JK Ling
JK Ling
1
Professor and graduate students
, respectively, Department of Chemical Engineering, University of Florida
, Gainsville, Fla. 32601
.
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Page Count:
13
-
Published:1973
Citation
Schweyer, H, Moore, J, & Ling, J. "Rheology of Asphalt Cements at 60 C (140 F)." Viscosity Testing of Asphalt and Experience with Viscosity Graded Specifications. Ed. Gunderman, W. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 : ASTM International, 1973.
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Studies on the viscosity of 18 asphalts at 60 C (140 F) showed that the result depends upon the apparatus and procedure used. The Florida capillary method at constant shear rate gives significantly higher values than does the Cannon-Manning method. Furthermore, it was shown that, although shear thinning may result for certain asphalts when run in Cannon-Pressure instruments, there may also be compensating effects of pressure which can raise the viscosity. These variations are attributed to both differences in the flow mode (transient or steady state) and to effects of the imposed pressures.
References
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, “Asphalts from Rocky Mountain Crude Oils
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, American Society for Testing and Materials
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, American Society for Testing Materials
, 1962
, p. 20.12.
Lefebvre
, J. A.
Robertson
, W. D.
, Proceedings
, Canadian Technical Asphalt Association
, Vol. 15
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, p. 101.13.
Schweyer
, H. E.
, Highway Research Record No. 404
, 1972
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Crouch
, R. F.
and Cameron
, A.
, Journal of the Institution of Petroleum Technologists
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Jongepier
, R.
Kuilman
, B.
, Rheologica Acta
, Vol. 9
, 1970
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Davis
, B. E.
, “Viscosity-Temperature Relationships of Certain Bituminous Materials
,” M.S. thesis, University of Wyoming
, Laramie, Wyo., 1966
.17.
Ling
, J. K.
, “Temperature Dependence of Asphalt Viscosity
,” M.S. Engineering thesis, University of Florida
, Gainesville, Fla., 1972
.18.
ASTM Standard Viscosity-Temperature Chart for Asphalts D 2493-68, 1971 Annual Book of ASTM Standards, Part 11,
American Society for Testing and Materials
.19.
Cogswell
, F. N.
Lamb
, P.
, Plastics and Polymers
0300-3582, 10
1970
, p. 331.20.
Lodge
, R. W.
, “Effect of Pressure in Asphalt Viscometry
,” M.S. Engineering thesis, University of Florida
, Gainesville, Fla., 1971
. (A paper is being prepared for publication.)21.
Schweyer
, H. E.
, unpublished privileged information.
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