Suitability of recycled construction and demolition aggregates as alternative pipe backfilling materials

Rahman, Md Aminur, Imteaz, Monzur, Arulrajah, Arul and Disfani, Mahdi Miri 2014, Suitability of recycled construction and demolition aggregates as alternative pipe backfilling materials, Journal of cleaner production, vol. 66, pp. 75-84, doi: 10.1016/j.jclepro.2013.11.005.

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Title Suitability of recycled construction and demolition aggregates as alternative pipe backfilling materials
Author(s) Rahman, Md AminurORCID iD for Rahman, Md Aminur
Imteaz, Monzur
Arulrajah, Arul
Disfani, Mahdi Miri
Journal name Journal of cleaner production
Volume number 66
Start page 75
End page 84
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014-03-01
ISSN 0959-6526
Keyword(s) Science & Technology
Life Sciences & Biomedicine
Green & Sustainable Science & Technology
Engineering, Environmental
Environmental Sciences
Science & Technology - Other Topics
Environmental Sciences & Ecology
Demolition material
Physical property
Geotechnical property
Summary This research was undertaken to investigate the suitability of recycled construction and demolition materials as alternative pipe backfilling materials for stormwater and sewer pipes. Three commonly found recycled construction and demolition waste materials, (crushed brick, recycled concrete aggregate and reclaimed asphalt pavement) were investigated to assess their suitability as a pipe backfilling material. The physical, geotechnical and chemical properties of these construction and demolition materials were compared with local engineering and water authorities specifications for typical quarried materials so as to assess their performance as a viable substitute for virgin quarried aggregates in pipe backfilling applications. Physical and geotechnical characterisation tests such as particle size distribution, specific gravity, water absorption, Los Angeles abrasion, California Bearing Ratio and modified Proctor compaction tests were undertaken. Chemical properties were also determined, including organic content, pH, trace element or total concentration and leachate testing of the construction and demolition materials for a range of contaminant constituents. In terms of physical, geotechnical and chemical assessment for pipe backfilling applications, recycled concrete aggregate and crushed brick were found to have the properties recommended by environmental protection authorities while reclaimed asphalt pavement material did not meet some of the specified requirements. Also shear strength properties were found to be equivalent or superior to those of typical quarry backfilling materials. This research indicates that traditional considered waste materials can be reused viably as alternate pipe backfilling materials. © 2013 Elsevier Ltd. All rights reserved.
Language eng
DOI 10.1016/j.jclepro.2013.11.005
Field of Research 0907 Environmental Engineering
0910 Manufacturing Engineering
0915 Interdisciplinary Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2013, Elsevier Ltd
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