Influence of construction and demolition waste management on the environmental impact of buildings.

The purpose of this study is to quantify comparable environmental impacts within a Life Cycle Analysis (LCA) perspective, for buildings in which the first (Materials) and last (End of Life) life cycle stages are adjusted to several waste/material management options. Unlike most LCAs, the approach is "top-down" rather than "bottom-up", which usually involves large amounts of data and the use of specific software applications. This approach is considered appropriate for a limited but expedient LCA designed to compare the environmental impacts of different life cycle options. Present results, based on real buildings measurements and demolition contractor activities, show that shallow, superficial, selective demolition may not result in reduced environmental impacts. Calculations actually show an increase (generally less than 5%) in most impact categories for the Materials and End of Life stages because of extra transportation needs. However, core material separation in demolition operations and its recycling and/or reuse does bring environmental benefits. A reduction of around 77% has been estimated in the climate change impact category, 57% in acidification potential and 81% in the summer smog impact (for the life cycle stages referred).

[1]  André Coelho,et al.  Generation of construction and demolition waste in Portugal , 2011, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

[2]  Gian Andrea Blengini,et al.  Resources and waste management in Turin (Italy): the role of recycled aggregates in the sustainable supply mix , 2010 .

[3]  Justo Garcia Navarro,et al.  Assessment of the decrease of CO2 emissions in the construction field through the selection of materials: Practical case study of three houses of low environmental impact , 2006 .

[4]  T. Muneer,et al.  Life cycle assessment: A case study of a dwelling home in Scotland , 2007 .

[5]  Bradley Guy.  The optimisation of building deconstruction for Department of Defense facilities: Ft. McClellan Deconstruction Project , 2006 .

[6]  Jacques Chevalier,et al.  Inter-comparison and benchmarking of LCA-based environmental assessment and design tools , 2004 .

[7]  Ernesto Antonini,et al.  Application of life-cycle assessment (LCA) methodology for valorization of building demolition materials and products , 2001, SPIE Optics East.

[8]  W. Leontief.  Environmental Repercussions and the Economic Structure: An Input-Output Approach , 1970 .

[9]  Giovanni Andrea Blengini,et al.  Life cycle of buildings, demolition and recycling potential: A case study in Turin, Italy , 2009 .

[10]  André Coelho,et al.  Distribution of materials in construction and demolition waste in Portugal , 2011, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

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

[12]  Seppo Junnila.  TECHNISCHE UNIVERSITÄT HELSINKI , 2004 .

[13]  Jorge de Brito,et al.  Economic analysis of conventional versus selective demolition—A case study , 2011 .

[14]  Seppo Junnila.  Life cycle assessment of environmentally significant aspects of an office building , 2004 .

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

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

[17]  Shabbir H. Gheewala,et al.  Environmental life cycle assessment of a commercial office building in Thailand , 2008 .

[18]  J. Burnett,et al.  Analysis of embodied energy use in the residential building of Hong Kong , 2001 .

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

[20]  Arpad Horvath,et al.  Economic Input–Output Models for Environmental Life-Cycle Assessment , 1998 .

[21]  Brenda Vale,et al.  Life cycle analysis model for New Zealand houses , 2004 .

[22]  Liselotte Schebek,et al.  Closed-loop recycling of construction and demolition waste in Germany in view of stricter environmental threshold values , 2006, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

[23]  Yimin Zhu,et al.  An LCA-based environmental impact assessment model for construction processes , 2010 .

[24]  Bruno Peuportier,et al.  Life cycle assessment applied to the comparative evaluation of single family houses in the French context , 2001 .

[25]  A Craighill,et al.  A lifecycle assessment and evaluation of construction and demolition waste , 1999 .

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

[27]  Bradley Guy,et al.  The Optimization of Building Deconstruction for Department of Defense Facilities: Ft. McClellan Deconstruction Project , 2006 .