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Earthen construction materials as enabler for circular construction

IOP conference series. Earth and environmental science, 2022-09, Vol.1078 (1), p.12065 [Peer Reviewed Journal]

Published under licence by IOP Publishing Ltd ;Published under licence by IOP Publishing Ltd. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1755-1307 ;EISSN: 1755-1315 ;DOI: 10.1088/1755-1315/1078/1/012065

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  • Title:
    Earthen construction materials as enabler for circular construction
  • Author: Klinge, A ; Roswag-Klinge, E ; Neumann, E ; Bojic, D ; Radeljić, L
  • Subjects: Building materials ; Buildings ; Carbon dioxide ; case study ; circular construction ; Climate change ; Construction ; Construction costs ; Construction industry ; Construction materials ; construction product ; Dismantling ; earthen materials ; Emissions ; Life cycles ; reduction of waste ; Resource consumption ; resource consumption and CO ; Transformation ; Waste disposal ; Water vapor
  • Is Part Of: IOP conference series. Earth and environmental science, 2022-09, Vol.1078 (1), p.12065
  • Description: Abstract The construction sector in Germany is one of the largest contributor to climate change. The majority of waste generation, resource consumption as well as CO 2 emissions relate to the construction and operation of buildings [1][2][3]. In order to tackle such negative impacts, the construction industry has to undergo a major transformation. Circular construction is the most promising answer to close effectively material cycles and to reduce CO 2 emissions related to the manufacturing of construction materials. Stakeholders involved in construction have to review the entire life cycle of building products and buildings and develop new approaches that address such shortcomings to turn the linear way of construction into a circular one. Nowadays the strong focus on economic considerations, lacking knowledge as well as unresolved warranty issues amongst others impede this transformation process. To demonstrate the benefits of earthen materials with regards to circular construction, this study analyses the potential of two different internal partition wall systems, based on earthen as well as conventional building materials in a holistic way. Several aspects have been taken into consideration, evaluated through the physical dismantling of both wall systems as well as a LCA assessment. Construction cost as well as other material benefits, such as the hygroscopic performance of construction materials have been investigated as well. The results demonstrate that earthen materials reduce both, construction and demolition waste as well as CO 2 emissions and demonstrate a much higher water vapour sorption capacity, a material parameter relevant for the reduction of mechanical ventilations systems. Although the economical assessment shows expectable lower construction cost for the wall system based on conventional materials such figures have to be placed in relation with the other results. In fact, the analysis demonstrates clearly that a holistic approach is needed in order to achieve the necessary shift.
  • Publisher: Bristol: IOP Publishing
  • Language: English
  • Identifier: ISSN: 1755-1307
    EISSN: 1755-1315
    DOI: 10.1088/1755-1315/1078/1/012065
  • Source: AUTh Library subscriptions: ProQuest Central
    IOPscience (Open Access)
    Alma/SFX Local Collection
    Institute of Physics IOP eJournals Open Access

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