Emulsions vs bitumen cutbacks in New Zealand

New Zealand's roads and highways are predominantly surfaced with chipseals, historically using hot-sprayed bitumen as the binder. More recently some contractors have begun to use bituminous emulsions more extensively, claiming performance, safety and environmental advantages. This paper gives an overview of the relative merits and risks of emulsions and hot-sprayed binders in terms of costs, environmental impacts and social impacts. An approach is recommended to roading authorities, to enable the best solution for New Zealand roads that takes into account not only the initial cost but also enables safety, health and environmental obligations to be met. (a) For the covering entry of this conference, please see ITRD abstract no. 0611AR299E.

• Authors:
  • GUNDERSEN, B L
• Publication Date: 2006-8

Language

• English

Media Info

• Pagination: 13P
• Serial:
  • ROADING NEW ZEALAND CONFERENCE, 2006, WELLINGTON, NEW ZEALAND
  • Publisher: NEW ZEALAND INSTITUTE OF HIGHWAY TECHNOLOGY (NZIHT)

Subject/Index Terms

• TRT Terms: Binders; Bitumen; Chippings; Conferences; Emulsions; Environment; Health; Pavement design; Pavements; Performance; Safety; Seal coats
• ITRD Terms: 4948: Binder; 4963: Bitumen; 4993: Bitumen emulsion; 4585: Chippings; 8525: Conference; 5910: Durability; 2455: Environment; 2144: Health; 2955: Pavement; 3055: Pavement design; 1665: Safety; 2984: Surface dressing
• Subject Areas: Design; Highways; Materials; Pavements; Safety and Human Factors; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01045627
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Apr 5 2007 11:54AM