WASTE NOT...

This article examines one way of re-using waste concrete, and discusses its advantages. In this method, recycled aggregate from the demolition of old concrete structures is used for building new multilayer pavements. The article presents a case study using this technique, and explains the technical aspects of substitute aggregate while analysing the complex process of recycling aggregate. It allows for the concept of continuity of material use. Re-used aggregate is expected to have proper granulation, adequate toughness, and no organic or inorganic contamination. Because of this, aggregate recovery has several stages. Repeated use of debris is not possible without suitable preparation. The result of crushing waste concrete is aggregate with different fractions, each of which should be used only in suitable situations. Because the most important advantage of concrete is its compression strength, it is necessary to study how recycled concrete behaves while being compressed. The most important factor affecting compression strength is the amount of used concrete in the mixture. Two kinds of pavement concrete were used, one in the lower layer and the other in the upper layer. The costs of recycling concrete into aggregate are also indicated.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14605856
• Corporate Authors:

  Palladian Publications Limited

  15 South Street
  Farnham Surrey GU97QU,   United Kingdom 
• Authors:
  • JASICZAK, J SZCZESZEK
• Publication Date: 1999-10

Language

• English

Media Info

• Features: References;
• Pagination: p. 62-4
• Serial:
  • CONCRETE ENGINEERING INTERNATIONAL
  • Volume: 2
  • Issue Number: 7
  • Publisher: THE CONCRETE SOCIETY
  • ISSN: 1460-5856

Subject/Index Terms

• TRT Terms: Aggregates; Compression; Concrete; Crushing; Demolition; Granular materials; Methodology; Mixtures; Pavements; Pollution; Properties of materials; Recycling; Road construction; Strength of materials; Structures; Waste products (Materials)
• ITRD Terms: 4577: Aggregate; 4563: By product; 5532: Compression; 4755: Concrete; 5176: Crushing; 3636: Demolition; 3355: Engineering structure; 4107: Granular; 9102: Method; 9047: Mixture; 2955: Pavement; 2453: Pollution; 5925: Properties; 4573: Recycling (mater); 3665: Road construction; 5544: Strength (mater)
• Subject Areas: Bridges and other structures; Environment; Geotechnology; Highways; Materials; Pavements;

Filing Info

• Accession Number: 00782696
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Feb 7 2000 12:00AM