Properties of Concrete Incorporating Fine Recycled Aggregate

This article reports on a study of the properties of concrete containing fine recycled aggregate, such as crushed concrete (CC) or crushed brick (CB), with particles less than 5mm in diameter. The water/cement (w/c) ratio was kept constant for all mixes. The fine aggregate in concrete was replaced with 0%, 25%, 50% and 100% CC or CB. General results showed a strength reduction of 15 to 30% for concrete containing CC. However, concrete incorporating up to 50% CB exhibits similar long-term strength to that of the control. Even at 100% replacement of fine aggregate with CB, the reduction in strength is only 10%. In addition, an increase in CC content causes an increase in shrinkage. For CB, an initial increase in shrinkage occurs at low CB content; as the CB content increases, the shrinkage begins to decline. The expansion of concrete increases for concrete containing CC or CB.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Authors:
  • Khatib, J M
• Publication Date: 2005-4

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 763-769
• Serial:
  • Cement and Concrete Research
  • Volume: 35
  • Issue Number: 4
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Brick; Concrete; Crushed aggregates; Expansion; Fine aggregates; Mechanical properties; Nondestructive tests; Recycled materials; Shrinkage; Strength of materials; Water cement ratio
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01000519
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 2 2005 9:12AM