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ASTM Selected Technical Papers
Rapid Test Methods for Determination of Bitumen Content in Bituminous Mixtures
By
H. F. Waller, Jr. Jr.
H. F. Waller, Jr. Jr.
1
Staff engineer
, Materials Research and Development Inc.
, Miller Warden Associates Division, Raleigh, N. C. 27608
; symposium chairman
.
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ISBN-10:
0-8031-6650-8
ISBN:
978-0-8031-6650-9
No. of Pages:
90
Publisher:
ASTM International
Publication date:
1969
eBook Chapter
Asphalt Content by Neutron Moderation
By
J. H. Steele
,
J. H. Steele
1
Humble Oil Company
, Baton Rouge, Louisiana
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C. P. Fisher
C. P. Fisher
2Department of Civil Engineering,
North Carolina State University
, Raleigh, North Carolina
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Page Count:
21
-
Published:1969
Citation
Steele, JH, & Fisher, CP. "Asphalt Content by Neutron Moderation." Rapid Test Methods for Determination of Bitumen Content in Bituminous Mixtures. Ed. Waller, HF, Jr. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 : ASTM International, 1969.
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The neutron moderation method of asphalt content determination is investigated by evaluating the effects of temperature of the mix, mass specific gravity of the sample, asphalt source, penetration grade of the asphalt, aggregate composition and gradation, and asphalt content of the mixture on the response of an experimental asphalt content gauge. Asphalt content and mass specific gravity each showed a strong linear correlation with counting rate in the range of 2 to 10 percent asphalt content and mass specific gravity of 1.25 to 1.50. The other variables showed no significant effect on gauge response.
References
1.
Fearon
, R. E.
, “Neutron Well Logging
,” Nucleonics
0096-6207, Vol. 4
, No. 6
, 1949
, pp. 30–42.2.
Wallace
, P. R.
, “Neutron Distribution in Elementary Diffusion Theory
,” Nucleonics
0096-6207, Vol. 4
, No. 2
, 1949
, pp. 30–55.3.
Lamb
, D. R.
and Zoller
, J. H.
, “Determination of Asphalt Content of Bituminous Mixtures by Means of Radioactive Isotopes
,” National Research Council, Proceedings, Highway Research Board
, Vol. 35
, 1956
, pp. 322–326.4.
Lottman
, R. P.
and Bowman
, C. L.
, “Development of Instrumentation for Measuring Asphalt Content of Asphaltic Mixtures
,” Transportation Engineering Center Report Number 207-2, Engineering Experiment Station, The Ohio State University
, Columbus, 1963
.5.
Lambe
, T. W.
, Soil Testing for Engineers, Wiley
, New York, 1951
.6.
Varma
, M. M.
and Reid
, G. W.
, “Determination of Asphalt Contents in a Paving Mixture by Thermal Neutrons
,” Highway Research Record No. 66, Highway Research Board, National Research Council
, Washington, D. C., 1965
.
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