Stone Mastic Asphalt – Early Life Skid Resistance
This paper describes an investigation of the skid resistance of Stone Mastic Asphalt (SMA), which was initiated in response to concern as to whether SMA poses a hazard to road users during the early stage of its life cycle. The surface friction of four different SMA mixes and dense graded asphalt (DGA) as a control was monitored early in its life and again after much or all of the binder had worn from the road surface. In addition the principle of applying grit to the asphalt surface was investigated to see whether it improved surface friction and accelerated the rate of wear of bitumen from the surface. The investigation concluded that the surface friction of SMA is lower in its early life in comparison to DGA, however the investigation could not conclude whether the SMA posed a hazard to road users due to the reduced level of surface friction early in its life. It was shown that using surface gritting improved surface friction and may accelerate the rate of wear of binder from the surface. It is recommended that further investigation of the early life surface friction of SMA be undertaken as well as development work on the practice of using surface grit.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/1876592494
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Corporate Authors:
ARRB
Melbourne, Victoria Australia -
Authors:
- Halligan, Steve
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Conference:
- Research into Practice: 22nd ARRB Conference
- Location: Canberra , Australia
- Date: 2006-10-29 to 2006-11-2
- Publication Date: 2006
Language
- English
Media Info
- Media Type: CD-ROM
- Features: Figures; References; Tables;
- Pagination: 14p
- Monograph Title: Research into Practice: 22nd ARRB Conference Proceedings
Subject/Index Terms
- TRT Terms: Asphalt mixtures; Bitumen; Dense graded aggregates; Hot mix asphalt; Life cycle analysis; Pavement design; Pavement performance; Pavements; Skid resistance; Stone matrix asphalt; Surface course (Pavements); Surface friction (Geophysics)
- Uncontrolled Terms: Dense graded asphalt mixtures
- ITRD Terms: 8525: Conference; 5452: Friction; 6226: In situ; 3055: Pavement design; 3031: Skid resistance; 3053: Surface texture; 5293: Wear
- Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 01039028
- Record Type: Publication
- ISBN: 1876592494
- Files: TRIS, ATRI
- Created Date: Jan 3 2007 8:48AM