Recycled materials: the basecourse of choice?

Internationally, recycled materials used as basecourse aggregate are often considered premium products yet they have received little attention in New Zealand. Research at the Canterbury Accelerated Pavement Testing Indoor Facility (CAPTIF) suggests that recycled concrete will out-perform traditional high quality basecourse materials. Laboratory work by the University of Canterbury suggests that melter slag aggregate is comparable to basecourse aggregates complying with the TNZ M/4 specification. Transit New Zealand has recently revised its TNZ M/4 basecourse specification to encourage the use of recycled concrete and melter slag as basecourse materials. This paper discusses the strength and durability of these recycled materials and considers overseas experience of their environmental impact. (a) For the covering entry of this conference, please see ITRD abstract no. E214098.

• Authors:
  • Alabaster, David
• Publication Date: 2005-11

Language

• English

Media Info

• Pagination: 13P
• Serial:
  • NEW ZEALAND INSTITUTE OF HIGHWAY TECHNOLOGY (NZIHT) AND TRANSIT NEW ZEALAND SYMPOSIUM, 7TH, 2005, CHRISTCHURCH, NEW ZEALAND
  • Publisher: NEW ZEALAND INSTITUTE OF HIGHWAY TECHNOLOGY (NZIHT)

Subject/Index Terms

• TRT Terms: Aggregates; Base course (Pavements); Building materials; Conferences; Durability; Environment; Pavement design; Pavements; Properties of materials; Recycling; Specifications
• ITRD Terms: 4577: Aggregate; 2990: Basecourse; 8525: Conference; 5910: Durability; 2455: Environment; 4555: Material (constr); 2955: Pavement; 3055: Pavement design; 5925: Properties; 4573: Recycling (mater); 177: Specifications
• Subject Areas: Design; Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I32: Concrete; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01043093
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Mar 6 2007 8:14AM