Evaluation of the impacts of end-of-life management strategies for deconstruction of a high-rise concrete framed office building

Recently, greater attentions have been started to put on the end-of-life (EoL) phase of buildings. Recycling, reuse and incineration of deconstructed wastes can help relieve the landfill burden and recover some energy from existing building materials in order to reduce environment impacts and/or reduce energy consumption. Life cycle energy assessment (LCEA) was performed for the EoL phase of a high-rise concrete office building in Hong Kong. The amount of energy that could be saved at the EoL phase through implementation of a specific EoL management strategy was evaluated in terms of energy saving potential (ESP), which was defined as the percentage of energy savings from the salvage materials to the total embodied energy of the building during its initial construction. Recycling of aluminum (30.7% ESP) and recycling of external walls (30.6% ESP) contributed to most of the total energy saving. Maximum reuse provided higher energy savings than maximum recycling (38.5% vs 35.9% ESP), while maximum incineration was not able to bring any energy saving (−44.8% ESP). In addition, the best EoL management strategies for different materials and elements were found to vary with time after taking the remaining proportions of embodied energy into considerations. Implementing the best EoL management strategies for different materials gave an ESP of 54.4% for 50-year life span. The life span of a building exerted considerable influences on the amount of energy saving. Highest energy saving was gained by implementing the best EoL strategies for 70-year life span.

[1]  Ashraf M. Wagih,et al.  Recycled construction and demolition concrete waste as aggregate for structural concrete , 2013 .

[2]  G. Treloar,et al.  Life-cycle energy analysis of buildings: a case study , 2000 .

[3]  Steven De Meester,et al.  The recyclability benefit rate of closed-loop and open-loop systems: a case study on plastic recycling in Flanders , 2015 .

[4]  John Holmberg,et al.  Concrete vs. wood in buildings – An energy system approach , 2012 .

[5]  David Rey,et al.  A multi-objective mixed integer nonlinear programming model for construction site layout planning to minimise noise pollution and transport costs , 2016 .

[6]  J. de Brito,et al.  In situ materials characterization of full-scale recycled aggregates concrete structures , 2014 .

[7]  Zheng Li,et al.  A simplified method to estimate the energy-saving potentials of frequent construction and demolition process in China , 2013 .

[8]  W. K. Hui,et al.  Assessment of CO2 emissions reduction in high-rise concrete office buildings using different material use options , 2012 .

[9]  Vivian W. Y Tam,et al.  A checklist for assessing sustainability performance of construction projects , 2007 .

[10]  Vivian W. Y. Tam,et al.  The costs and benefits of combining recycled aggregate with steel fibres as a sustainable, structural material , 2016 .

[11]  Ambrose Dodoo,et al.  Carbon implications of end-of-life management of building materials. , 2009 .

[12]  Francesca Stazi,et al.  Energy, comfort and environmental assessment of different building envelope techniques in a Mediterranean climate with a hot dry summer , 2014 .

[13]  Javier Ordóñez,et al.  Energy efficient design of building: A review , 2012 .

[14]  Magdalena Svanström,et al.  Life cycle assessment of construction materials: the influence of assumptions in end-of-life modelling , 2014, The International Journal of Life Cycle Assessment.

[15]  Anne Grete Hestnes,et al.  Energy use in the life cycle of conventional and low-energy buildings: A review article , 2007 .

[16]  Zhen Chen,et al.  Environmental management of urban construction projects in China , 2000 .

[17]  Rawshan Ara Begum,et al.  Implementation of waste management and minimisation in the construction industry of Malaysia , 2007 .

[18]  Robert F. Boehm,et al.  Passive building energy savings: A review of building envelope components , 2011 .

[19]  Rehan Sadiq,et al.  An overview of construction and demolition waste management in Canada: a lifecycle analysis approach to sustainability , 2013, Clean Technologies and Environmental Policy.

[20]  Jeung-Hwan Doh,et al.  Incorporating sustainable development principles into building design: a review from a structural perspective including case study , 2015 .

[21]  Alan Meier,et al.  Energy impacts of recycling disassembly material in residential buildings. , 2001 .

[22]  K. K. Shukla,et al.  Life Cycle Energy Analysis of a Multifamily Residential House: A Case Study in Indian Context , 2013 .

[23]  T. Astrup,et al.  Incineration and co-combustion of waste: accounting of greenhouse gases and global warming contributions , 2009, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

[24]  Chi Sun Poon,et al.  Quantifying the Impact of Construction Waste Charging Scheme on Construction Waste Management in Hong Kong , 2013 .

[25]  Vorasun Buranakarn,et al.  Emergy indices and ratios for sustainable material cycles and recycle options , 2003 .

[26]  Jeng Shiun Lim,et al.  Energy and emissions benefits of renewable energy derived from municipal solid waste: Analysis of a low carbon scenario in Malaysia , 2014 .

[27]  Robert H. Crawford,et al.  Building service life and its effect on the life cycle embodied energy of buildings , 2015 .

[28]  Randolph Kirchain,et al.  Design for Recycling , 2010 .

[29]  Li Zhu,et al.  Detailed Energy Saving Performance Analyses on Thermal Mass Walls Demonstrated in a Zero Energy House , 2009 .

[30]  Stephan A. Durham,et al.  Beneficial use of recycled materials in concrete mixtures , 2012 .

[31]  Kenneth M. Persson,et al.  Aluminium recovery vs. hydrogen production as resource recovery options for fine MSWI bottom ash fraction. , 2013, Waste management.

[32]  Arnold Janssens,et al.  Quantification of the impact of the end-of-life scenario on the overall resource consumption for a dwelling house , 2009 .

[33]  Lorena M. Fortuna,et al.  Deconstruction of wood-framed houses: Material recovery and environmental impact , 2015 .

[34]  W. Tsai,et al.  Environmental Concerns About Carcinogenic Air Toxics Produced from Waste Woods as Alternative Energy Sources , 2013 .

[35]  A. Inés Fernández,et al.  Low carbon and low embodied energy materials in buildings: A review , 2013 .

[36]  Konstantinos Moustakas,et al.  Generation and management of construction and demolition waste in Greece—an existing challenge , 2003 .

[37]  Jacques De Ruyck,et al.  Dioxin levels in wood combustion - a review. , 2004 .

[38]  Luisa F. Cabeza,et al.  Life cycle assessment (LCA) and life cycle energy analysis (LCEA) of buildings and the building sector: A review , 2014 .

[39]  Catarina Thormark,et al.  A low energy building in a life cycle - its embodied energy, energy need for operation and recycling potential , 2002 .

[40]  Catarina Thormark,et al.  The effect of material choice on the total energy need and recycling potential of a building , 2006 .

[41]  O. Yamanoshita,et al.  Carcinogenic risk of chromium, copper and arsenic in CCA-treated wood. , 2015, Environmental pollution.

[42]  Jeffrey Morris,et al.  Recycling versus incineration: an energy conservation analysis , 1996 .

[43]  Ignacio Zabalza Bribián,et al.  Life cycle assessment of building materials: Comparative analysis of energy and environmental impacts and evaluation of the eco-efficiency improvement potential , 2011 .

[44]  Gregory A. Keoleian,et al.  Life cycle energy and environmental performance of a new university building: modeling challenges and design implications , 2003 .

[45]  Jaume Avellaneda,et al.  Recycling concepts and the index of recyclability for building materials , 2013 .

[46]  Bernadette O’Regan,et al.  A model for assessing the economic viability of construction and demolition waste recycling—the case of Ireland , 2006 .

[47]  Robert H. Crawford,et al.  Life cycle greenhouse gas emissions and energy analysis of prefabricated reusable building modules , 2012 .

[48]  Giovanni Andrea Blengini,et al.  The changing role of life cycle phases, subsystems and materials in the LCA of low energy buildings , 2010 .

[49]  Luca A. Tagliafico,et al.  Analysis and future outlook of natural gas consumption in the Italian residential sector , 2014 .

[50]  Mi Hyung Kim,et al.  Analysis of the global warming potential for wood waste recycling systems , 2014 .

[51]  Tao Li,et al.  A system boundary identification method for life cycle assessment , 2014, The International Journal of Life Cycle Assessment.

[52]  Vanessa Montoro Taborianski,et al.  Comparative evaluation of the contribution of residential water heating systems to the variation of greenhouse gases stock in the atmosphere , 2004 .