An effective bond coat for longer pavement life
Tack coat treatments are routinely used to promote a satisfactory bond between an existing pavement surface and new asphaltic concrete overlay. A satisfactory bond is essential to maximise the structural design performance of the overall pavement. In thin layers the tack or bond coat is critical in resisting high shear forces and preventing delamination failures. This paper reviews the local development of a bond coat emulsion with improved bond strength and negligible construction tyre pickup. It also describes a novel laboratory sample preparation method utilising a shear box compactor as well as laboratory bond strength testing for various tack coat conditions. Field trial observations are reported and practical field applications are described. (a) For the covering record of the conference, please refer to ITRD no. E218387.
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Corporate Authors:
HALLMARK CONFERENCE AND EVENTS
PO BOX 84
HAMPTON, Australia 3188 -
Authors:
- LYSENKO, J
- Publication Date: 2009-10
Language
- English
Media Info
- Pagination: 10P (DAY 2, SESSION 5)
- Monograph Title: Australian Asphalt Paving Association thirteenth international flexible pavements conference, Sunday 11th - Wednesday 14th October, Surfers Paradise, Queensland, Australia
Subject/Index Terms
- TRT Terms: Chemical bond; Pavement layers; Pavements; Performance
- Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 01153060
- Record Type: Publication
- Source Agency: ARRB
- Files: ITRD, ATRI
- Created Date: Mar 23 2010 9:14AM