The interaction between asphalt and aggregate surfaces before and after low-temperature storage (reversible, irreversible, or both) at various film thicknesses was investigated by means of the sliding plate geometry with standard Pyrex glass plates and machined aggregate plates. The study of storage and setting in thin films of asphalts on aggregate surfaces indicates that asphalts interact differently and unpredictably with aggregate surfaces. The phenomenon of steric hardening in thin films appears to be retarded (compared with the same phenomenon in bulk asphalts) during short storage times but is enhanced in contact with aggregate surfaces after several weeks’ storage.
Get full access to this article
View all access options for this article.
References
1.
Western Research Institute. Fundamental Properties of Asphalts and Modified Asphalts, Vol. 1. Interpretive final report. FHWA Contract DTFH61-92C-00170. Laramie, Wyo., May1997.
2.
TraxlerR. N., and SchweyerH. E.. Increase in Viscosity of Asphalts with Time. Proc., American Society of Testing Materials, Vol. 36, 1936, pp. 544–550.
3.
TraxlerR. N., and CoomsC. E.. Development of Internal Structure in Asphalts with Time. Proc., American Society of Testing Materials, Vol. 37, 1937, pp. 549–557.
4.
BrownA. B., SparksJ. W., and SmithF. M.. Steric Hardening of Asphalts. Proc., Association of Asphalt Paving Technologists, Vol. 26, 1957, pp. 486–494.
5.
PetersenJ. C.Chemical Composition of Asphalt as Related to Asphalt Durability: State of the Art. In Transportation Research Record 999, TRB, National Research Council, Washington, D.C., 1984, pp. 13–30.
6.
MonismithC. L., and SecorK. E.. Thixotropic Characteristics of Asphaltic Paving Mixtures with Reference to Behavior in Repeated Loading. Proc., Association of Asphalt Paving Technologists, Vol. 29, 1960, pp. 114–140.
7.
BranthaverJ. F., PetersenJ. C., RobertsonR. E., DuvallJ. J., KimS. S., HarnsbergerP. M., MillT., EnsleyE. K., BarbourF. A., and SchabronJ. F.. Binder Characterization and Evaluation, Volume 2: Chemistry. SHRP-A-368. Strategic Highway Research Program, National Research Council, Washington, D.C., 1993
8.
McKayJ. F.Fundamental Properties of Asphalts and Modified Asphalts. Semiannual technical report. FHWA Contract DTFH61-92-C-00170. Nov.1, 1996, pp. 117–120.
9.
BahiaH. U., and AndersonD. A.. Glass Transition Behavior and Physical Hardening of Asphalt Binders. Journal of the Association of Asphalt Paving Technologists, Vol. 62, 1993, pp. 93–129.
10.
GriffinR. L., MilesT. K., PentherC. J., and SimpsonW. C.. Sliding Plate Microviscometer for Rapid Measurement of Asphalt Viscosity in Absolute Units. Special Technical Publication 212. American Society for Testing Materials, 1957, pp. 36–51.
11.
Western Research Institute. New Methods, Fundamental Properties of Asphalts and Modified Asphalts, Vol. 2. Interpretive final report. FHWA Contract DTFH61-92C-00170. Laramie, Wyo., May1997.
12.
HuangS. C., BranthaverJ. F., RobertsonR. E., and KimS. S.. Effect of Film Thickness on the Rheological Properties of Asphalts in Contact with Aggregate Surface. In Transportation Research Record 1638, TRB, National Research Council, Washington, D.C., 1998, pp. 31–39.
