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ASTM Selected Technical Papers
Symposium on Road and Paving Materials—1959
By
ASTM Committee D-4
ASTM Committee D-4
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ISBN-10:
0-8031-5599-9
ISBN:
978-0-8031-5599-2
No. of Pages:
133
Publisher:
ASTM International
Publication date:
1960

It is generally recognized that failures of asphalt pavements caused by embrittlement and other changes in physical properties during the aging process are due to chemical reactions of all or some of the asphalt components. This paper attempts to correlate chemical composition of asphalts with their performance as a binder and to demonstrate that changes in chemical composition parallel changes in performance.

The chemical analysis used in this investigation is the precipitation method by Rostler and Sternberg (1)2 which defines asphalts as consisting of five groups of components which can be isolated and tested as to performance, individually and as blends. The analytical method used is contrasted with four other methods proposed for chemical identification of asphalts. The laboratory tests used in studying performance are (1) abrasion resistance of Ottawa sand-asphalt mixtures before weathering and during various stages of weathering, and (2) cohesion of Ottawa sand-asphalt mixtures. Some conventional data such as used for specification purposes are also shown.

The data reported indicate (1) that chemical composition of asphalts is better defined by a precipitation method than by analytical procedures based on solution and adsorption equilibria, and (2) that physical, including rheological, properties of asphalts and changes of these properties during weathering can be correlated with changes in chemical composition. Laboratory prepared asphalts, commercially available asphalts, and asphalts extracted from cores from roads of known history were used in these tests.

1.
Rostler
F. S.
and
Sternberg
H. W.
, “
Compounding Rubber with Petroleum Products
,”
Industrial and Engineering Chemistry
 0888-5885, Vol.
41
,
03
1949
, pp. 598–608.
2.
Mack
C.
, “
Physico-Chemical Aspect of Asphalts
,”
Proceedings
,
Assn. of Asphalt Paving Technologists
,
09
12
1933
, p. 40.
3.
Taft
W. K.
,
Feldon
Milton
,
Duke
June
,
Laundrie
R. W.
, and
Prem
D. C.
, “
Oil Types in the Program for Oil-Extended Rubber
,”
Industrial and Engineering Chemistry
 0888-5885, Vol.
47
,
05
1955
, pp. 1077–1090.
4.
Rostler
F. S.
and
White
R. M.
, “
Determination of the Hydrocarbon Type of Petroleum Products
,”
Rubber Age
, Vol.
70
,
03
1952
, pp. 735–747.
5.
Glossary of Terms Relating to Rubber and Rubber-Like Materials
,
Am. Soc. Testing Mats.
(
1956
). (Issued as separate publication ASTM STP No. 184.)
6.
Rostler
F. S.
and
White
R. M.
, “
Chemical Nature of Oil Extenders for Synthetic Rubbers
,”
Industrial and Engineering Chemistry
 0888-5885, Vol.
46
,
03
1954
, pp. 610–620.
7.
Marcusson
J.
and
Eickmann
R.
,
Chemiker Zeitung
, Vol.
32
,
10
1908
, pp. 965–967.
8.
Berl
Ernst
, “
Berl-Lunge, chemisch-technische Untersuchungsmethoden
,” Vol.
IV
, p. 944,
Julius Springer
,
Berlin
(
1933
).
9.
Hubbard
R. L.
and
Stanfield
K. E.
, “
Determination of Asphaltenes, Oils, and Resins in Asphalt
,”
Analytical Chemistry
 0003-2700, Vol.
20
,
05
1948
, pp. 460–465.
10.
Traxler
R. N.
and
Schweyer
H. E.
, “
How to Make Component Analysis
,”
Oil and Gas Journal
 0030-1388, Vol.
52
, No.
19
,
14
09
1953
, p. 158.
11.
Hoiberg
A. J.
and
Garris
,
W. E.
 Jr.
, “
Analytical Fractionation of Asphalts
,”
Analytical Chemistry
 0003-2700, Vol.
16
,
05
1944
, pp. 294–302.
12.
Kleinschmidt
L. R.
, “
Chromatographic Method for the Fractionation of Asphalt Into Distinctive Groups of Components
,” Research Paper 2577,
Journal of Research, National Bureau of Standards
 0160-1741, Vol.
54
, No.
3
,
03
1955
, pp. 163–166.
13.
Hveem
F. N.
, “
Quality Tests for Asphalts—A Progress Report
,”
Proceedings, Assn. of Asphalt Paving Technologists
, Vol.
15
,
12
1943
, pp. 111–141.
14.
Skog
J. B.
, “
The Operation, Control and Application of the California Design Infrared Weathering Machine
,” Road and Paving Materials, pp. 1–12 (
1957
). (Issued as separate publication ASTM STP No. 212.)
15.
Marcusson
J.
, “
Die natürlichen und künstlichen Asphalte
,”
Wilhelm Engelmann
,
Leipzig (Germany)
(
1931
).
16.
Rostler
F. S.
, “
A Chemical Approach to the Problem of Maintenance of Asphaltic Pavements
,”
U. S. Air Force Pavements Conference
, held in
Berkeley, Calif.
, 27–31 July 1959. 0-521079/66,
U. S. Government Printing Office
(
1959
).
17.
Catalog No. 60
, “
Laboratory Instruments, Apparatus, Furniture, Supplies
,”
Braun Corp.
,
Los Angeles, Calif
. (
1955
).
18.
Catalog No. 40
, “
Scientific Research and Process Control Apparatus
,”
Precision Scientific Co.
,
Chicago, Ill.
(
1958
).
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