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UBC renovation project waste management Ren, Kirin Oct 14, 2013

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       UBC RENOVATION PROJECT WASTE MANAGEMENT UBC RENOVATION PROJECTS CONSTRUCTION & DEMOLITION WASTE PRACTICES    By Kirin Ren | a SEEDS project | October 14, 2013  a SEEDS project | By Kirin Ren     EXECUTIVE SUMMARY  I. Project rationale  In support of UBC’s Zero Waste Action Plan, to decrease C&D waste disposal and increase waste diversion for projects that fall outside of LEED and REAP green building systems, this project is implemented by two UBC master students from architecture and civil engineering department respectively.  It intended to provide practical waste management methods for UBC authorities. II. Methodology This article focuses on over ten literature reviews and it also incorporates the interviews with UBC renovation projects contractors.  By taking advantage of the conclusions from articles all over the world, and integrating the real situation on UBC campus, the waste management plans are presented and proposed accordingly. III. Key findings As the client of the UBC renovation projects, UBC authorities can establish dedicated requirements to guide and monitor the waste management process. IV. Recommendations 1. The elaborate design for deconstruction and utilization of pre-fabricated construction materials will REDUCE the potential waste remarkably. 2. REUSE every materials before they become “waste”. 3. The RECYCLE plan should be attached initially with the project contract, and the source-separated means should be encouraged.     a SEEDS project | By Kirin Ren      Table of Contents Part I: Construction and Demolition (C&D) Waste Management Literature Review .......................... 1 1. Source of renovation project waste ................................................................................................. 1 2. Categories of C&D waste................................................................................................................. 1 3. Composition of C&D waste ............................................................................................................. 2 4. Factors which influence the waste management success........................................................... 3 5. Methods from literature review for renovation project waste management ............................... 4 Part II: Current Situation of UBC Renovation Projects Waste Management ..................................... 7 1. The existing facilities on UBC campus .......................................................................................... 7 2. Interviews with contractors ............................................................................................................. 7 Part III: Suggestions on UBC Renovation Projects Waste Management ........................................... 9 1. Reduce.............................................................................................................................................. 9 2. Reuse ................................................................................................................................................ 9 3. Recycle ............................................................................................................................................ 10 Attachment 1  SAMPLE WASTE MANAGEMENT PLAN ................................................................ 11 References .............................................................................................................................................. 12   a SEEDS project | By Kirin Ren    8  Many contractors stated that they can track waste easily by requesting waybills from demolition sub-contractors/waste management companies.  Major obstacles stated by contractors for material reuse are: - Old materials in renovation projects are mainly not in a good condition to be reused  - Owners usually prefer new materials - Storage area is expensive/inaccessible  - Sometimes it is against codes to use old materials (e.g. structures)  - Old materials might be outdated and not efficient enough in terms of energy consumption  - Salvaged materials might not fit in new design (size, length, color, etc.)  - Processing materials for reusing in the same project may be time consuming and may result in delays in project schedule.  - Finding customer for salvaged materials  - Materials might be damaged through demolition/deconstruction   Contractors/subcontractors stated the following points as major obstacles for waste diversion: - Small pieces of mixed waste  - Materials which are difficult to separate (e.g. because of adhesives, nails, etc.)  - Unrecyclable materials (Styrofoam, plastics and wrappers in packaging)  - There is not much money in recycling  - Lack of space on site to set up separate bins.  - Educating the workers  - Non-transparent garbage bags, used for small amounts of waste, can result in mistakes in waste categorization  - Finding proper recycling facilities for each type of waste with decent price  - Separating food waste (In large projects)  - Competitive bidding fees among demolition sub-contractors    a SEEDS project | By Kirin Ren    9 Part III: Suggestions on UBC Renovation Projects Waste Management 1. REDUCE a. Look for ways waste can be prevented in the first place by identifying potential wastes early in the design process. If we identify potential waste early in the design process, it could decrease waste generated during construction. There are following matters we need to pay attention to:  Design with standard sizes for most building materials, which can avoid creating waste when standard sized materials are cut to unusual shapes.  Design spaces to be flexible and adaptable to multiple uses, which avoids creating waste during remodels.  Design for deconstruction, there are specific means such as: using the dis-entanglement of systems, choosing materials bolted together instead of glued, preparing a construction and deconstruction blueprint, adopting less hazardous materials and highly recyclable materials. b. Pre-fabrication components.  It can reduce the onsite work, ensure the quality of building components, and minimize construction waste generated on site. 2. REUSE Identify waste that can be salvaged for reuse on the current project, on another project or donated. Sometimes, reused materials may also provide functional or aesthetic features not available in new materials. For example, salvaged wood is often of a quality and a variety of species that is difficult to find in the market place.  UBC can set up a database managing the overall campus renovation projects, providing the shared information of the second handed materials available. This will provide cheap or free materials for other projects on campus. For some used furniture or electrical apparatus, sending a public email to students and faculties may draw the attention of the potential people who really need them at low cost or even for free.  a SEEDS project | By Kirin Ren    10 3. RECYCLE a. Make a construction waste management plan together with the contractor, and make it an attachment with the renovation project contract. (See attachment 1 for Sample Waste Management Plan) b. Source-Separated Recycling.  UBC needs to provide separated bins for construction waste, together with plans for the temporary storage and design the hauler trucks access.    a SEEDS project | By Kirin Ren    11 ATTACHMENT 1  SAMPLE WASTE MANAGEMENT PLAN11  Company:  Project:  Designated Recycling Coordinator:  Waste Management Goals: � This project will recycle or salvage for reuse xx% [e.g. 90%] by weight of the waste generated on-site. Communication Plan: � Waste prevention and recycling activities will be discussed at each safety meeting. � As each new subcontractor comes on-site, the recycling coordinator will present him/her with a copy of the Waste Management Plan and provide a tour of the recycling areas. � The subcontractor will be expected to make sure all their crews comply with the Waste Management Plan. � All recycling containers will be clearly labeled. � Lists of acceptable/unacceptable recycle materials will be posted throughout the site. Expected Project Waste, Disposal, and Handling: The following charts identify waste materials expected on this project, their disposal method, and handling procedures. Demolition Phase Material Quantity Disposal Method Handling Procedure                  Construction Phase Material Quantity Disposal Method Handling Procedure                                                                          11 Resource Venture, “Construction Waste Management Guide, for Architects, Designers, Developers, Facility Managers, Owners, Property Managers & Specification Writers”, Third edition, September 2005, page 23  a SEEDS project | By Kirin Ren    12 References 1. A BIM-based system for demolition and renovation waste estimation and planning By Jack C.P. Cheng, Lauren Y.H. Ma “Waste Management 33 (2013) 1539–1551” 2. Impact of Construction Waste Disposal Charging Scheme on work practices at construction sites in Hong Kong By Ann T.W. Yu, C.S. Poon, Agnes Wong, Robin Yip, Lara Jaillon “Waste Management 33 (2013) 138–146” 3. Estimating construction and demolition debris generation using a materials flow analysis approach By K.M. Cochran a,T.G. Townsend b “Waste Management 30 (2010) 2247–2254” 4. On the effectiveness in implementing a waste-management-plan method in construction By Vivian W.Y. Tam “Waste Management 28 (2008) 1072–1080” 5. Quantifying the waste reduction potential of using prefabrication in building construction in Hong Kong By L. Jaillon, C.S. Poon,Y.H. Chiang “Waste Management 29 (2009) 309–320” 6. A systems analysis tool for construction and demolition wastes management By James Y. Wang, Ali Touran, Christoforos Christoforou, Hatim Fadlalla “Waste Management 24 (2004) 989–997” 

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