To demolish or not to demolish: Life cycle consideration of repurposing buildings

Assefa, Getachew; Ambler, Chelsea

doi:10.1016/j.scs.2016.09.011

Cited by 113 publications

(47 citation statements)

References 21 publications

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“…As loads are considered as midspan knife edge loads, the bending moment M b can be related to an equivalent knife edge load, P b , using equation (5).…”

Section: Bending Capacitymentioning

confidence: 99%

“…It has been estimated that 87% of buildings which will be in existence in 2050 have already been built [1] and that 40% of global greenhouse gases are directly attributable to the built environment [2]. Therefore, 'adaptive reuse' has grown in popularity in recent years as a major means for the construction industry to be more sustainable [3] [4], with the life cycle considerations of repurposing buildings resulting in 20-41% savings in energy and resource consumption [5]. This ethos of repurposing structures has a wide range of applications ranging from strengthening existing structural elements by retrofitting, complete replacement of structural elements, the construction of new structural elements within an existing building (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Arching in concrete slabs strengthened with near surface mounted fibre reinforced polymers

Martin

Taylor

Robinson

et al. 2019

Engineering Structures

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This paper outlines basalt fibre reinforced polymer (BFRP) and carbon fibre reinforced polymer (CFRP) strengthening of laterally restrained concrete floor slabs. In-plane restraint has previously been shown to enhance slab capacity due to the development of internal compressive membrane action (CMA), which is not generally included in codified strength assessments. By installing fibre reinforced polymers (FRPs) using the near surface mounted (NSM) technique, disturbance to the existing structure can be minimised. The span-to-depth ratios of test slabs were 20 and 15 and these were constructed with normal strength concrete (~40N/mm 2 ) with 0.15% steel reinforcement. 0.10% FRP (either BFRP or CFRP), was used to strengthen samples which were then compared with control samples. Investigations showed that FRP strengthening and CMA are generally separate, with limited overlap in terms of their contribution to capacity increase. Recommendations are then made for designers to better determine the capacity of FRP strengthened restrained slabs.

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“…As loads are considered as midspan knife edge loads, the bending moment M b can be related to an equivalent knife edge load, P b , using equation (5).…”

Section: Bending Capacitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Arching in concrete slabs strengthened with near surface mounted fibre reinforced polymers

Martin

Taylor

Robinson

et al. 2019

Engineering Structures

View full text Add to dashboard Cite

show abstract

“…There are a multitude of publications within the international literature, which analysed the environmental effects of circular processes compared to open chain solutions. There were case studies for recycling foodstuff waste by creating circular models, [13] for renovating or deconstructing buildings, and for processing the waste material from demolition work [14], and developing models based on the LCA of closed urban material flows, to mention a few examples. These were mostly dealing with the innovative processing of waste material.…”

Section: Using Lca For Planning Circular Economymentioning

confidence: 99%

The Application of Life Cycle Assessment in Circular Economy

Szita¹

2017

HAE

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Circular Economy's concept is becoming more and more widespread in the world. It's fundamental philosophy is that the waste of one system can become the input of another, thereby increasing resource efficiency, and decreasing environmental load. However, the circular economy model does not always mean environmental gains. Therefore, before using it, taking a more in-depth look at the environmental, social, and economic effects of the planned technological solution from the perspective of life cycle, and only introducing it, if their combined effects are more advantageous than the open-chain technological lining. The study takes a look at the basics of circular economy and life cycle, and sheds light on the advantages of realising the economic model via a LCA.

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“…The widespread existence and importance of ARCH buildings demand that researchers, city planners, policymakers, and industry consider how the environmental impacts of ARCH buildings are managed in light of global environmental crises such as climate change, due to fossil fuel use and over-exploitation of natural resources. ARCH buildings, as a subset of the building sector, are significant greenhouse gas (GHG) emitters and consumers, while also possessing vast amounts of embodied energy (Akadiri et al 2012, Aksamija 2016, Assefa and Ambler 2017. Rapidly reducing the carbon emissions of the building sector is needed to support the Intergovernmental Panel on Climate Change (IPCC) objective of limiting global warming to 1.5°C above pre-industrial levels (Rogelj et al 2018).…”

Section: Introductionmentioning

confidence: 99%

A review of environmental impact indicators of cultural heritage buildings: a circular economy perspective

Foster

Kreinin

2020

Environ. Res. Lett.

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This paper is the first in-depth review of the state of the art of environmental impact indicators for adaptive reuse of cultural heritage (ARCH) buildings from a circular economy perspective. Buildings are a necessary component of sustainability planning because they are significant consumers of natural resources, producers of construction and demolition waste, and contributors to greenhouse gas emissions. In addition, buildings, particularly ARCH buildings, are long lasting; therefore, measuring and managing their environmental impacts is crucial to achieving the universal vision of a sustainable, low-carbon economy. The research answers the questions, 'What are the environmental impact indicators used by individual ARCH building project analyses?' and 'Are the most commonly used indicators reflecting Circular Economy concepts?' It synthesizes and defines current practice in the field whilst highlighting the gaps between practice and policy. Although the term 'Circular Economy' is not explicitly and routinely used in the literature, related concepts such as life cycle analysis, energy consumption reduction, energy efficiency, and embodied carbon/energy are evident at the project level. Concrete and measured environmental indicators are not mainstream. However, narratives of environmental protection feature prominently in the literature, indicating an environmental motivation for repurposing cultural heritage buildings. Further, there is a gap between common indicators of circularity and the ARCH building project level indicators shown in the dataset.

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To demolish or not to demolish: Life cycle consideration of repurposing buildings

Cited by 113 publications

References 21 publications

Arching in concrete slabs strengthened with near surface mounted fibre reinforced polymers

Arching in concrete slabs strengthened with near surface mounted fibre reinforced polymers

The Application of Life Cycle Assessment in Circular Economy

A review of environmental impact indicators of cultural heritage buildings: a circular economy perspective

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