Green retaining structure utilizing recycled concrete aggregate

Alfrendo Satyanaga, Martin Wijaya, Abdul Halim Hamdany, Sung Woo Moon, Jong Kim

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Recycled concrete aggregate, that are easily found from destruction waste materials, has been used in the construction industry as an alternative for coarse aggregate components in concrete or as backfilling material in retaining structures. This paper presents the results of a study on the use of recycled concrete material in the design of a newly developed retaining wall, that is, the Geobarrier system (GBS). The GBS system was developed based on capillary barrier and vegetative cover as provisions of the sustainable construction concept. Two types of concrete aggregate are used as components of capillary barrier, that is, fine and coarse aggregate. Laboratory test result shows the recycled concrete has similar mechanical and hydraulic properties as the natural aggregate. The combination of the fine and coarse aggregates can effectively retain the water from entering the soil behind the GBS wall, therefore maintaining the negative pore pressure within the soil and therefore: the stability of the GBS.

Original languageEnglish
Title of host publicationSustainable Materials in Civil Infrastructure
PublisherElsevier
Pages151-160
Number of pages10
ISBN (Electronic)9780443161421
ISBN (Print)9780443161438
DOIs
Publication statusPublished - 1 Jan 2024

Keywords

  • Geobarrier system
  • recycled concrete aggregate
  • retaining structure
  • Sustainable construction
  • vegetative cover

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