Improvement of concrete with recycled aggregate

Kenji Sakata, Toshiki Ayano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)

Abstract

The quantity of waste concrete is one tenth of total waste out of both industry and home in 1997 in Japan. It is about 400, 000, 000 tons a year. The disposal of waste concrete has become a big problem. On the other hand, the lack of natural fine aggregate has also become a serious problem because the requirements to protect the natural environment are increasingly strong. Many engineers at ready-mixed concrete plants are eager to find fine aggregate resources other than river and sea sand. Recycled concrete is expected to be one of the hopeful alternatives. Many researchers have already found it possible to produce a normal strength concrete with the required slump by using recycled aggregate. However, it has been also clear that the durability of concrete with recycled concrete aggregate is sometimes very inferior to that of normal concrete. In this paper, the durability of concrete with recycled concrete aggregate and methods for its improvement are discussed.

Original languageEnglish
Title of host publication2000 CanMET/ACI Conference on Durability of Concrete
EditorsV.M. Malhotra
PublisherAmerican Concrete Institute
Pages1089-1108
Number of pages20
ISBN (Electronic)9780870316906
Publication statusPublished - Apr 1 2000
Event5th International CanMET/ACI Conference on Durability of Concrete 2000 - Barcelona, Spain
Duration: Jun 4 2000Jun 9 2000

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-192
ISSN (Print)0193-2527

Conference

Conference5th International CanMET/ACI Conference on Durability of Concrete 2000
Country/TerritorySpain
CityBarcelona
Period6/4/006/9/00

Keywords

  • Crushed aggregates
  • Durability
  • Polymers
  • Recycling

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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