Zero Construction and Demolition Waste Management Practice: A Case Study in Shenzhen, China

Eco-efficient rehabilitation of buildings and neighbourhoods should include strategies to reduce the potential environmental impact of buildings under consideration for demolishment. In this case, good construction and demolition (C&D) waste management can represent a doubly eco-efficient approach: advantage is taken of much of the building and the volume of waste is reduced during construction and demolition work. Construction and demolition waste management in emergency situations is a subject yet to be studied in the construction sector. This kind of work, although not very common, involves major building damages and the need for punctual, partial or total demolitions. The amount of C&D waste can be a major problem to deal with, and its management during the critical first phases can determinate the progress of the rehabilitation. Conditioned by a greater number of factors than normal construction works, the lack of time for the identification, quantification, and evaluation of C&D waste renders this type of extremely useful study. In this work, from the case study of the emergency repair of a residential building of 40 dwellings in Seville (Spain) seriously affected by a soil displacement, Generated C&D waste are identified and the waste reduction techniques used are shown. These techniques contributed to achieve the planned objectives and to control in advance the cost. Finally, the most important data, C&D waste quantification and the managing cost are presented in order to serve as reference for similar circumstances in the future because there areno clear references to be used.

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Construction Waste Audit in the Framework of Sustainable Waste Management in Construction Projects - Case Study

10.20944/preprints202012.0294.v1 ◽

2020 ◽

Author(s):

Marcela Spišáková ◽

Peter Mésároš ◽

Tomáš Mandičák

Keyword(s):

Waste Management ◽

Waste Disposal ◽

Construction Projects ◽

Economic Benefits ◽

Construction And Demolition Waste ◽

Transport Costs ◽

Demolition Waste ◽

Construction Waste ◽

Building Information

The issue of sustainability has long been the subject of interest of the architecture engineering and construction sector. All three aspects of sustainability - economic, environmental and social - can be affected through appropriate construction waste management. Construction and demolition waste (CDW) is one of the largest worldwide waste streams, therefore it is given great attention by all stakeholders (investors, contractors, authorities, etc.). Researches have shown that one of the main barriers to insufficiency CDW recovery is inadequate policies and legal frameworks to manage CDW. It is also one of the EU's environmental priorities. Aim of the article is to confirm the economic potential of construction and demolition waste audit processing through case study. A pre-demolition waste audit has been processed for unused building of shopping center in the town Snina in Slovakia. Subsequently, a comparison of economic parameters (waste disposal costs and transport costs) of recommended CDW management was performed. This comparison confirmed the economic benefits of environmentally friendly construction waste management methods according to the waste audit results, which will also increase the sustainability of construction projects. In addition, the cost parameters of selected waste disposal methods could be another dimension of building information modelling.

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Investigation of Barriers and Factors Affecting the Reverse Logistics of Waste Management Practice: A Case Study in Thailand

Sustainability ◽

10.3390/su6107048 ◽

2014 ◽

Vol 6 (10) ◽

pp. 7048-7062 ◽

Cited By ~ 20

Author(s):

Sumalee Pumpinyo ◽

Vilas Nitivattananon

Keyword(s):

Waste Management ◽

Reverse Logistics ◽

Management Practice ◽

Factors Affecting ◽

Waste Management Practice

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Life cycle assessment of construction and demolition waste management systems: a Spanish case study

The International Journal of Life Cycle Assessment ◽

10.1007/s11367-011-0350-2 ◽

2011 ◽

Vol 17 (2) ◽

pp. 232-241 ◽

Cited By ~ 61

Author(s):

Irma T. Mercante ◽

María D. Bovea ◽

Valeria Ibáñez-Forés ◽

Alejandro P. Arena

Keyword(s):

Life Cycle Assessment ◽

Life Cycle ◽

Waste Management ◽

Construction And Demolition Waste ◽

Management Systems ◽

Demolition Waste

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Assessment of construction waste management practice: a case study in Costa Rica

Linnaeus Eco-Tech ◽

10.15626/eco-tech.2007.007 ◽

2007 ◽

pp. 85-95

Author(s):

Lilliana Abarca ◽

Ir. F.M. Scheublin ◽

Hijmen Van Twillert

Keyword(s):

Costa Rica ◽

Management Practice ◽

Developed Countries ◽

Construction And Demolition Waste ◽

Demolition Waste ◽

Construction Waste ◽

A Value ◽

Soil Piping ◽

Concrete Blocks

The construction industry deals with the provision of shelter and infrastructure for acontinuing growing population and urbanization, especially in developing countries, Thissector is well known as a huge consumer of natural resources; which produces a significantquantity of construction and demolition waste, Data about the situation of construction wastegeneration in Costa Rica is scarce and the objectives of the study were to develop a baselinestudy to determine quantities and composition of the waste, as well as, motivators and barriersfor achieving a more sustainable activity, This paper draws the findings of the surveyundertaken by means of questionnaires, interviews and site visits, The composition basicallyis wood, soil, piping materials, corrugated roof sheets, wires, packaging materials (paper,plastic and cardboard), cement, concrete, blocks, paints and debris, The amounts (either byvolume or by weight) of these streams are unknown since the majority of the companies don'tkeep track of these data, It is suggested a value of I 00 kg/m2 as an educated guess of theamount of construction waste produced, This high amount, compared to lower values found inliterature for developed countries, could be explained by the general lack of awareness andinformation on environmental issues as well as lack of technologies, governmentalenforcement and market incentives to improve the environmental footprint of the sector,

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Construction and Demolition Waste Management Actions and Potential Benefits: A Perspective from Trinidad and Tobago

Buildings ◽

10.3390/buildings9060150 ◽

2019 ◽

Vol 9 (6) ◽

pp. 150 ◽

Cited By ~ 2

Author(s):

Nigel Narcis ◽

Indrajit Ray ◽

Gino Hosein

Keyword(s):

Waste Management ◽

Trinidad And Tobago ◽

Management Practices ◽

Management Practice ◽

Construction And Demolition Waste ◽

Small Island ◽

Survey Method ◽

Demolition Waste ◽

Management Actions ◽

Potential Benefits

A study was conducted to identify the primary sources and types of construction and demolition (C&D) waste, determine current and potential management actions which can be applied to the respective wastes, and assess the potential benefits, barriers, and recommendations towards the implementation of a C&D waste management plan in Trinidad and Tobago—a Caribbean Small Island Developing State (SIDS). This process is lacking locally, and will benefit decision makers and other stakeholders in proper management of C&D waste. Currently, the primary method of waste disposal is landfilling. The structured questionnaire survey method was used to collect the data, and data were analyzed by descriptive statistics and one-way ANOVA with appropriate post-tests. Results showed that wood, plastic, cardboard, gypsum board, and steel were identified as the most wasted materials on site, with the top sources being attributable to design, operations, and residual causes. It can be inferred that if materials are not being reused, they are being landfilled, as these were the two primary waste treatment methods identified as being used for all materials. If waste management practice gathers enough support from all respective authorities and stakeholders, the general consensus is that all materials listed have recycle/reuse potential in Trinidad and Tobago. The top agreed upon advantages of C&D waste management were all directly related to sustainability, and the barriers to implementation identified were related to general lack of support from respective stakeholders and authorities. From the overall results, it can be concluded that there is not enough evidence to suggest that larger contractors have more positive attitudes and behaviors towards C&D waste management. Although the data are local, the findings from this research can be used as guidelines by the other Caribbean SIDS nations in formulating/comparing their own waste management practices.

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Investigation of waste diversion rates in the construction and demolition sector in Australia

Built Environment Project and Asset Management ◽

10.1108/bepam-01-2020-0012 ◽

2020 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Shiyamini Ratnasabapathy ◽

Ali Alashwal ◽

Srinath Perera

Keyword(s):

Waste Management ◽

Descriptive Analysis ◽

Construction And Demolition Waste ◽

Current Status ◽

Accurate Estimation ◽

Demolition Waste ◽

Effective Measure ◽

Content Type ◽

Waste Diversion

PurposeWaste diversion rate (WDR) is a key indicator of effective waste management and circular economy. However, it has not yet been widely used in the construction and demolition waste (C&DW) sector. This study aims to promote the application of WDR as an effective measure for waste management through the investigation of the current status of C&DW diversion in the Australian construction industry.Design/methodology/approachA mixed-method approach, which combines a desk study and a case study of 12 residential projects was used in this study. Data retrieved from the National Waste Database (NWD) were used for the descriptive analysis.FindingsThe analysis of the national waste data revealed that the national average WDR in Australia is 64%. WDR varies based on material types and across the states. The analysis facilitated the forecasting of the possible future trend of waste diversion in Australia. The studied projects from two states in Australia presented slightly different results. Most of the waste stream, except mixed waste, presented above 95% of WDR in each project.Research limitations/implicationsAlthough the studied projects showed a higher recycling rate, this study claims that achieving a higher rate of recovery by diverting the waste could not be assured unless accurate estimation is carried out with reliable and verifiable data. Lack of reliable data is considered as the limitation of this study. While the scope of descriptive analysis of waste generation and diversion covers the whole country, the case study analysis is limited to the states of New South Wales and Victoria.Originality/valueThe study highlights the significance of WDR in assessing the performance of effective waste management in the C&DW sector. WDR is a comprehensive measure that takes the output of the waste life cycle into account for benchmarking waste management. The results provide a critique of the current practices of waste management and the essence of the consistent, transparent and verifiable waste data to enable accurate WDR estimation in Australia. The outcome is useful for waste managers and policymakers in developing potential waste management strategies and C&DW specific legislation for building a more ecologically sustainable industry.

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