|
|
|
Title: EVALUATION OF STONE MATRIX ASPHALT VERSUS DENSE-GRADED MIXTURES
Accession Number: 00676636
Record Type: Component
Availability: Find a library where document is available Abstract: Since 1991, several states in the United States have built stone matrix asphalt (SMA) pavements in order to evaluate the performance of SMA mixtures in terms of their durability and resistance to rutting. Two such SMA mixtures and two dense-graded mixtures are compared in terms of their resistance to rutting, moisture damage, low-temperature cracking, and aging, and the effect of using a polymer instead of a fiber in SMA mixtures is examined. SMA performance is evaluated using existing tests, to determine which are applicable to SMAs. U.S. Army Corps of Engineers Gyratory Testing Machine (GTM), confined and unconfined repeated load tests, diametral resilient modulus, the indirect tensile strength tests, and two wheel-tracking devices, the French Pavement Rutting Tester and the Georgia Loaded Wheel Tester, are applied and their results analyzed. Both wheel tracking devices and the GTM indicate that none of the mixtures is susceptible to rutting. The confined and the unconfined repeated load and diametral resilient modulus tests, however, predict more rutting in the SMAs than in the dense-graded mixtures, which contradicts the results from the wheel-tracking devices and the GTM. The SMAs had less potential for moisture damage and age hardening. When using a polymer instead of a fiber as the stabilizer in the SMAs, the amount of drained binder and mineral filler increased.
Supplemental Notes: This paper appears in Transportation Research Record No. 1454, Asphalt Concrete Mixture Design and Performance. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01401258
Language: English
Authors: Mogawer, Walaa SStuart, Kevin DPagination: p. 58-65
Publication Date: 1994
Serial: ISBN: 0309060621
Features: Figures
(1)
; References
(8)
; Tables
(9)
TRT Terms:
Accelerated tests; Age hardening; Alternatives analysis; Cracking; Dense graded aggregates; Fibers; Gyratory testing machines; Loss and damage; Low temperature; Low temperature tests; Modulus of resilience; Moisture damage; Polymers; Repeated loads; Rutting; Stabilizers; Stone matrix asphalt; Surface drainage; Tension tests; Water
Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials
Files: TRIS, TRB, ATRI
Created Date: Apr 21 1995 12:00AM
More Articles from this Serial Issue:
|
