Asphalt-Rubber SAMI (Stress-Absorbing Membrane Interlayers) Field Evaluation.

This report documents the investigation of asphalt-rubber mixtures for use as stress-absorbing membrane interlayers (SAMIs) for airfield pavements. The project was initiated in 1977 as a state-of-the-art review (Reference 1). That study concluded that use of SAMIs was promising for improving the per...

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Bibliographic Details
Main Authors: McKeen,R G, Pavlovich,Raymond D, Cassino,Vincent
Other Authors: NEW MEXICO ENGINEERING RESEARCH INST ALBUQUERQUE
Format: Text
Language:English
Published: 1986
Subjects:
Terminal Flight Facilities
Construction Equipment
Materials & Supplies
*RUBBER
*ASPHALT
*PAVEMENTS
*LANDING FIELDS
STRESSES
MONITORING
STATE OF THE ART
PARAMETERS
MATERIALS
CRACKS
OBSERVATION
FIELD TESTS
CONCRETE
REFLECTION
MIXTURES
TIME
REPAIR
CONSTRUCTION
MEMBRANES
ROADS
ABSORPTION
WUAFESL20544P29
PE64708F
sami
Online Access:http://www.dtic.mil/docs/citations/ADA169700
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA169700
Description
Summary:This report documents the investigation of asphalt-rubber mixtures for use as stress-absorbing membrane interlayers (SAMIs) for airfield pavements. The project was initiated in 1977 as a state-of-the-art review (Reference 1). That study concluded that use of SAMIs was promising for improving the performance of asphalt-concrete overlays on airfield pavements. A following study addressed material characterization and development of a proposed construction specification (Reference 2). This report covers follow-on monitoring of the performance of an experimental pavement project at Kirtland AFB, Apron A; construction and performance monitoring of two trial sections located at Williams AFB and Coolidge Field in Arizona; and the design and construction of a field experiment at Peterson AFB, Colorado. Based on the results obtained to date, the performance observed cannot be related in a meaningful way to the material characteristics. This results from the small time elapsed since construction of the pavements under observation. Based on experience, a revised proposed construction specification is included in the current report. Continued performance monitoring is recommended in order to obtain the benefit from the investment made in the initial construction documentation. Keywords: Airfield parameters, Asphalt rubber, Performance monitoring, Field observations, Reflection cracking.

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