Micro-surfacing technology and its application to road maintenance in local government

Slurry seals have been available for many years, however, user acceptance has been varied because of the inherent limitations of the early systems which were frequently, slow setting anionic slurries based on very fine aggregates. Cationic slurries gained support because of improved setting and adhesion characteristics but traffic access times, while considerably shorter than before, were still long (2-4 hours) and seal depth was still confined to thin layers. Technological developments over the last 10 years have resulted in the introduction of quick curing systems using larger aggregates and polymer modified binders. These systems comprise quick set, quick traffic slurries and micro-surfacing overlays and have reduced traffic access times to less than half an hour. In addition, deep lift overlays are now possible allowing both rut and some road shape correction. This paper reviews several test procedures used to assess slurry characteristics and outlines their relevance to optimum mix design. Practical field applications of the new slurry systems are discussed to emphasise their value as an integral part of pavement maintenance options for Local Government Engineers (A).

• Authors:
  • Lysenko, J
• Conference:
  • Local Government Engineers Association of Western Australia State Conference, 8th, 1991, Perth
• Publication Date: 1991

Language

• English

Media Info

• Pagination: 11p
• Serial:
  • Volume: 1

Subject/Index Terms

• TRT Terms: Bituminous binders; Cold mix paving mixtures; Construction management; Local government; Materials tests; Mix design; Overlays (Pavements); Pavement components; Pavement maintenance; Slurry seals; Surface course (Pavements)
• ATRI Terms: Cold mix; Local government; Maintenance method; Material testing; Mix design; Overlay; Pavement maintenance; Pavement materials; Polymer modified binder; Slurry seal; Surfacing
• Subject Areas: Construction; Highways; Pavements;

Filing Info

• Accession Number: 01431556
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 24 2012 4:35PM