Green-Engineering: Reuse of Concrete from Bored Pile Head Trimming

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The construction industry is one of the greatest sectors of the European Union that contributes to carbon emissions and to the production of waste. In this scope, the special foundations’ activities particularly provide a great part of concrete waste (CW), especially in pilling. Most of the contracts with bored piles include an activity which is the trimming of the pile head. This activity has the function of removing any excess concrete, needed for the casting process, from the structural element (pile) and putting the head in the final cut-off level. The reuse of this hardened concrete as riprap to armor riverbank against scour and water erosion in a near-site is presented as an eco-friendly solution that should be implemented everywhere by building a database of sites producing construction and demolition waste (CDW) and construction sites matching the need of such material in the vicinities. This would allow significant savings in the commercial issues of the worksites as a relevant reduction of the environmental impact due to the reuse of CW and the decrease of CO2 emissions. This paper describes a case study of recycling hardened concrete by trimming the head of bored piles at a construction site in central Portugal.

Original languageEnglish
Title of host publicationEngineering Geology for a Habitable Earth
Subtitle of host publicationIAEG 14th Congress 2023 Proceedings - Volume 3: Active Tectonics, Geomorphology, Climate and Geoenvironmental Engineering Geology
EditorsSijing Wang, Runqiu Huang, Rafig Azzam, Vassilis P. Marinos
PublisherSpringer Science and Business Media Deutschland GmbH
Pages159-170
Number of pages12
VolumeVolume 3: Active Tectonics, Geomorphology, Climate and Geoenvironmental Engineering Geology
ISBN (Print)9789819990641
DOIs
Publication statusPublished - 28 Aug 2024
Event14th International Association for Engineering Geology and the Environment, IAEG 2023 - Chengdu, China
Duration: 21 Sept 202327 Sept 2023

Publication series

NameEnvironmental Science and Engineering
ISSN (Print)1863-5520
ISSN (Electronic)1863-5539

Conference

Conference14th International Association for Engineering Geology and the Environment, IAEG 2023
Country/TerritoryChina
CityChengdu
Period21/09/2327/09/23

Keywords

  • Carbon emission
  • Concrete waste reuse
  • Piling
  • Trimming

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