Plastic and nonmetallic article shaping or treating: processes – Treatment of material by vibrating – jarring – or agitating... – By reciprocating or vibrating mold
Patent
1997-07-07
1999-06-29
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Treatment of material by vibrating, jarring, or agitating...
By reciprocating or vibrating mold
264333, 264338, 264DIG65, B28B 1087, B28B 302, B28B 738, B29C 4302
Patent
active
059165049
ABSTRACT:
A method for forming a test specimen from an asphalt concrete mixture includes providing a mold to receive a quantity of the mixture and adding a predetermined quantity of the mixture to the mold. The mixture in the mold is compressed at a pressure of at least about 7 psi while vibrating the mixture in the mold at a rate of at least about 2400 cycles per minute. The method also includes maintaining the vibration of and the application of compressing pressure to the mixture in the mold until the mixture obtains a predetermined mix design density within a range of about 90-97%.
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"EDCO.RTM. Gyratory Testing Machine (GTM)" taken from Oct. 1995 issue of Asphalt Contractor, p. 78.
"Fatigue Testing of Asphaltic Concrete Slabs" by R. A. Jimenez, pp. 3-17. (No Date).
"Evolution of the Hveem Stabilometer Method of Designing Asphalt Paving Mixtures" by B. A. Vallerga and W. R. Lovering, pp. 243-303. (No Date).
"Control of Field Density of Bituminous Concrete with a Gyratory Compactor" by F. W. Kimble and W. B. Gibboney, pp. 1-55. (No Date).
"Gyratory Testing Machine Procedures for Selecting the Design Asphalt Content of Paving Mixtures" by B. F. Kallas, pp. 341-362. (No Date).
"A New Vibrating Machine for Determining the Compactibility of Aggregates" by J. T. Pauls and J. F. Goode of the U.S. Bureau of Public Roads, pp. 124-145. (No Date).
"Triaxial Testing and The Triaxial Institute" by V. A. Endersby, Chariman of The Triaxial Institute. (No Date).
"Application of the Triaxial Test to Bituminous Mixtures--Hveem Stabilometer Method" by F. N. Hveem, State of California, Jul. 7, 1949.
"Preliminary Report of an Apparartus for the Testing of Asphaltic Concrete Diaphragms" by Rudolf A. Jimenez and Bob M. Gallaway, pp. 477-506. (No Date).
"U.S. Corps of Engineers Gyratory Testing Machines", pp. c-35 & C-36. (No Date).
Edwards, Jr. M. Earl
Jakob Herbert E.
Aftergut Karen
Pavement Technology, Inc.
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