Circular economy in built environment – Literature review and theory development

Mhatre, Purva; Gedam, Vidyadhar V.; Unnikrishnan, Seema; Verma, Sanjeev

doi:10.1016/j.jobe.2020.101995

Cited by 50 publications

(58 citation statements)

References 99 publications

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“…biosphere; using the same principle, technical materials must be designed to be reintegrated into the industrial system, without deep and continuous damage to the biosphere. In this context, the construction sector is undertaking interesting steps, particularly with regard to scientific research [24]. This study proposes a model, in line with circular economy objectives, capable of implementing a feasible industrial symbiosis between two sectors in a win-win scenario.…”

Section: Methodsmentioning

confidence: 99%

“…The concept of a circular economy is based on a self-regeneration like that of natural ecosystems, in which materials of biological origin are designed to be reintegrated into the biosphere; using the same principle, technical materials must be designed to be reintegrated into the industrial system, without deep and continuous damage to the biosphere. In this context, the construction sector is undertaking interesting steps, particularly with regard to scientific research [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

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Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis

et al. 2021

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This study aims to provide a mitigation strategy for reducing the economic and environmental impacts of carbon fiber wastes deriving from automotive industry. Recycling and reuse in the construction industry is proposed, according to an industrial symbiosis within a circular economy perspective. Specifically, the process consists of repurposing carbon fiber reinforced polymer (CFRP) scraps/waste into new cement-matrix composites, for which the resulting benefits, in terms of mechanical and environmental performance, are herein described. An experimental campaign, starting with a specific heat treatment of CFRP sheets and an accurate dimensional distribution analysis of the short carbon fibers, is presented. The influence of the fiber content and length on both the workability and the mechanical performance of cement-based carbon fiber reinforced mortars is also evaluated. A reduced amount of either sand or cement (up to 8% and 12.8% in volume, respectively) is also considered in the mix design of the fiber reinforced mortars and derives from the substitution of the sand or binder with an equivalent volume of CFRP fibers. The results show a satisfactory increase in compressive and flexural strength in the range 10–18% for the samples characterized by a volume fraction of fibers of approximately 4% and having a 2–5 mm length. Finally, a life cycle assessment (LCA, 14040/14044) was carried out to quantify the environmental burden reductions associated with the implementation of the proposed symbiotic scheme.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis

et al. 2021

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“…In this context, many countries are introducing strict environmental policies and regulations to protect fragile ecosystems [8], making it more difficult and expensive to extract and use specific resources [9]. Thus, in the construction sector, Level(s) has emerged [10][11][12][13]. Level(s) is an information framework proposed by the European Union and developed by the Joint Research Centre for sustainable buildings.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Scientific Evolution of the Circular Economy Applied to Construction and Demolition Waste

et al. 2021

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The circular economy (CE) concept applied to construction and demolition waste (CDW) is a developing field of research that entails a large amount of complex and disjointed information; thus, a comprehensive review of scientific contributions could provide a completed perspective. This article aims to analyse the existing knowledge of CE research applied to CDW, using a double integrated analysis, a systematic literature review and a bibliometric analysis. For this purpose, Science Mapping Analysis Tool (SciMAT), a software for the analysis of performance indicators and visualisations of scientific maps, has been used, which offers a complete approach to the field and evaluates the most cited and productive authors and subject areas related to this discipline. The results obtained from the 1440 bibliographic records from 1993 to 2020 show a still-developing scientific field, evolving from concerns about economic aspects to the most recent progresses in the evaluation of sustainable deconstruction. This work will contribute to the existing body of knowledge by establishing connections, mapping networks of researchers and recommending new trends.

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“…The major interest and awareness within research in transforming the construction and building sector to a CE can be seen from the large number of comprehensive literature surveys on the topic, e.g. (Benachio et al 2020), (López Ruiz et al 2020), and (Mhatre et al 2021). Mhatre et al (2021) describes how the number of research papers within CE in the built environment have been increasing.…”

Section: Introductionmentioning

confidence: 99%

“…(Benachio et al 2020), (López Ruiz et al 2020), and (Mhatre et al 2021). Mhatre et al (2021) describes how the number of research papers within CE in the built environment have been increasing.…”

Section: Introductionmentioning

confidence: 99%

Implementation Stage for Circular Economy in the Danish Building and Construction Sector

et al. 2021

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The building and construction sector is selected by the European Commission as a key product value chain in the transition towards circular economy (CE) due to the major resource consumption, waste generation and GHG emissions from this sector. This paper reports the result from qualitative and semi-structured interviews with 30 Danish stakeholders from the sector on the current stage of implementation of CE and the research/innovation needs to scale circular construction from niche to mainstream. The interviews showed a large variety in the stakeholder’s stage of transition from hardly knowing the term to having CE as a major driver in their business. Some meant that scaling of CE is close to impossible and that material reuse will never develop to more than a niche, whereas others already offer full-scale circular solutions to clients. The interviews pointed at a need for a common definition and terminology for CE, methods for documenting the gains from the circular solutions (economic and environmental), methods for technical documentation of the quality of reused materials, processes which enables scaling, methods to implement CE in various systems such as digitalization and building passports, new value chains and framework conditions in support of circularity. Regardless these needs, demonstration projects of major importance to gain general knowledge have been built or are planned in Denmark. These demonstrations have different approaches: using todays waste from different industries as construction materials; reusing construction materials (the basic building, elements or processed materials); and designing new buildings for disassembly to enable future reuse.

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Circular economy in built environment – Literature review and theory development

Cited by 50 publications

References 99 publications

Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis

Cement-Matrix Composites Using CFRP Waste: A Circular Economy Perspective Using Industrial Symbiosis

Analysis of the Scientific Evolution of the Circular Economy Applied to Construction and Demolition Waste

Implementation Stage for Circular Economy in the Danish Building and Construction Sector

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