00645998

Component

http://onlinepubs.trb.org...trr/1993/1418/1418-001.pdf

https://scholar.google.co...heng&publication_year=1993

A loaded wheel test apparatus for direct laboratory comparison of the rutting susceptibility of asphalt concrete mixes is described. The test consists of applying a loaded, rubber-tired wheel to a small rectangular beam specimen. For the mechanical apparatus described, the wheel, which is loaded by deadweight, remains stationary while the beam moves back and forth. The stress state applied by this system is similar to that which occurs in the field, including the application of stress reversals. About 50 two-directional loads are applied to a specimen each minute with the total number of repetitions being 8,000. A test can be performed in about 3 hr. The testing concept is straightforward, and the loading system is entirely mechanical. Hence, the test can be conducted and the tester can be maintained at a minimum of cost by a laboratory technician having a very modest level of technical and mechanical ability. Also, complicated electronic instrumentation is not required to obtain good results, which significantly reduces the equipment cost and makes setting up and performing the rutting test simple.

This paper appears in Transportation Research Record No. 1418, Performance-Related Testing and Evaluation of Characteristics of Aggregates and New Geomaterials. 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

01398731

English

p. 1-7

1993

Transportation Research Record

0309055660

Figures (4) ; Photos (2) ; References (9) ; Tables (1)

Asphalt concrete; Cost effectiveness; Laboratory tests; Rutting; Testing equipment

Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials

TRIS, TRB

Apr 4 1994 12:00AM

• AGGREGATE TYPE AND TRAFFIC VOLUME AS CONTROLLING FACTORS IN BITUMINOUS PAVEMENT FRICTION
• COMPARISON OF SOME ENGINEERING PROPERTIES OF EXPANDED POLYSTYRENE WITH THOSE OF SOILS (WITH DISCUSSION AND CLOSURE)
• EVALUATION OF ALABAMA LIMESTONE AGGREGATES FOR ASPHALT WEARING COURSES
• EVALUATION OF DOMESTIC INCINERATOR ASH FOR USE AS AGGREGATE IN ASPHALT CONCRETE
• EXPERIENCE WITH ASTM P214 IN TESTING VIRGINIA AGGREGATES FOR ALKALI-SILICA REACTIVITY
• MINERALOGY OF AGGREGATES IN RELATION TO THE FRICTIONAL PERFORMANCE OF SEAL COAT PAVEMENT OVERLAYS: A PETROGRAPHIC STUDY
• RESILIENT AND PLASTIC BEHAVIOR OF CLASSIFIER TAILINGS AND FLY ASH MIXTURES
• STRENGTH AND LIFE OF STABILIZED PAVEMENT LAYERS CONTAINING FIBRILLATED POLYPROPYLENE