Developments in life cycle assessment applied to evaluate the environmental performance of construction and demolition wastes

Bovea, Marı́a D.; Powell, Jane

doi:10.1016/j.wasman.2016.01.036

Cited by 168 publications

(94 citation statements)

References 113 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The scope of this study, for each insulation material/scenario, includes the stages of product and construction (A) and use (B) proposed by EN 15804 [36] and shown in detail in Table 2. End-of-life stages (C and D) are beyond the scope of this study since it is the least influential stage when analysing the life cycles of buildings [44].…”

Section: Objective and Boundary Definitionmentioning

confidence: 99%

Environmental and cost performance of building’s envelope insulation materials to reduce energy demand: Thickness optimisation

Braulio-Gonzalo

Bovea

2017

Energy and Buildings

View full text Add to dashboard Cite

Thermal insulation materials play an important role in the challenge of nearly zero-energy buildings thanks to their potential in reducing building's energy demand and carbon emissions. However, increasing the thickness of the insulation material in the building's envelope has implications from the energy, environmental and economic viewpoints. In this context, efforts should be made to optimise insulation thickness to balance all these aspects.This study presents a methodology to analyse optimum insulation material for the building's envelope (roof, façade and floor) and its thickness to achieve energy demand reductions in the operation phase of the building, which is based on the Life Cycle Assessment and Life Cycle Costing methodologies to integrate both environmental and economic aspects, respectively. The system boundary includes the life cycle stages of product and use defined by recent European standards. A selection of eleven alternative insulation materials, both conventional and emerging ones based on natural products, were chosen to conduct the study. After applying the methodology to a single-family house in Spain and performing a sensitivity analysis, the results revealed that sheep wool and recycled cotton, jointly with traditionally used mineral and glass wool, should be promoted in the construction industry as they offer the highest eco-efficient performance among the analysed insulation materials. Reductions of up to 40% in energy demand compared to regulations standards can be achieved in theeco-efficiency context. Keywords: optimuminsulation thickness; eco-efficiency; life cycle assessment; life cycle cost; energy demand Highlights• Optimising insulation thickness for the building's envelope • Eco-efficiency analysis of life cycle and cost assessment • Sensitivity analysis by varying the building's energy demand scenarios • Emerging naturally-based insulation materials were the most eco-efficient 3

show abstract

Section: Objective and Boundary Definitionmentioning

confidence: 99%

Environmental and cost performance of building’s envelope insulation materials to reduce energy demand: Thickness optimisation

Braulio-Gonzalo

Bovea

2017

Energy and Buildings

View full text Add to dashboard Cite

show abstract

“…The first part goes to the plants for further processing, and the second goes to the disposal. According to the recently introduced regulatory documents of the federal and regional levels, the overwhelming part of waste should be processed, and only the categories unsuitable for processing are prescribed to send to the disposal [3]. At the exit from the sections of waste-processing plants, construction wastes get the status of secondary construction materials.…”

Section: Figure 1 the Cycle Of Waste Treatment In Construction Areamentioning

confidence: 99%

Management of construction and demolition wastes as secondary building resources

Manukhina

Иванова

2017

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

“…For the transport to the landfill, the same emission data were used for the truck transportation of building materials. For waste disposal activities performed in the landfill, a ratio of 0.37 L of diesel per 1 tonne of waste was assumed, an average value obtained from Bovea and Powell (2016) considering that one liter of diesel is equivalent to 2.63 kg CO2eq (MINISTÉRIO…, 2013).…”

Section: End-of-life Phase Analysismentioning

confidence: 99%

Life cycle carbon emissions inventory of brick masonry and light steel framing houses in Brasilia: proposal of design guidelines for low-carbon social housing

et al. 2017

View full text Add to dashboard Cite

CALDAS, L. R.; LIRA, J. S. de M. M.; MELO, P. C. de.; SPOSTO, R. M. Life cycle carbon emissions inventory of brick masonry and light steel framing houses in Brasilia: proposal of design guidelines for low-carbon social housing. Ambiente Construído, Porto Alegre, v. 17, n. 3, p. 71-85, jul./set. 2017 Abstracthis study evaluated the CO2eq emissions during the life cycle of two social housing projects in the city of Brasilia. A house of ceramic brick masonry was compared to a light steel framing one. The life cycle carbon emissions assessment (LCCO2A) with a cradle-to-grave approach was used. The relation between the thermal performance of the wall systems and CO2eq emissions in the operational phase of the houses were evaluated using the DesignBuilder software. In addition, six scenarios composed of three CO2eq emission factors from the Brazilian electrical grid and two schedules of occupation of houses (full and part time) were evaluated. The brick masonry house presented less CO2eq emissions than the light steel framing one. For both houses, the operational phase was the most significant regarding the total CO2eq emissions (50% to 70%), followed by the construction (20% to 30%), maintenance (11% to 20%) and end-of-life (lower than 1%) phases. The results also showed the importance of considering different CO2eq emission factors for the Brazilian context in the operational phase. Finally, based on the results obtained, design guidelines for low carbon social housing were proposed. Keywords T Lucas Rosse CaldasFederal University of Rio de Janeiro Rio de Janeiro -RJ -Brazil Júlia Santiago de Matos Monteiro LiraUniversity of Brasília Brasília -DF -Brazil Pedro Corrêa de MeloUniversity of Brasília Brasília -DF -Brazil Rosa Maria SpostoUniversity of Brasília Brasília -DF -BrazilRecebido em 17/11/16 Aceito em 20/03/17Ambiente Construído, Porto Alegre, v. 17, n. 3, p. 71-85, jul./set. 2017. Caldas, L. R.; Lira, J. S. de M. M.; Melo, P. C. de.; Sposto, R. M.72

show abstract

Developments in life cycle assessment applied to evaluate the environmental performance of construction and demolition wastes

Cited by 168 publications

References 113 publications

Environmental and cost performance of building’s envelope insulation materials to reduce energy demand: Thickness optimisation

Environmental and cost performance of building’s envelope insulation materials to reduce energy demand: Thickness optimisation

Management of construction and demolition wastes as secondary building resources

Life cycle carbon emissions inventory of brick masonry and light steel framing houses in Brasilia: proposal of design guidelines for low-carbon social housing

Contact Info

Product

Resources

About