Barriers and countermeasures for managing construction and demolition waste: A case of Shenzhen in China

Yuan, Hongping

doi:10.1016/j.jclepro.2017.04.137

Cited by 176 publications

(125 citation statements)

References 33 publications

(27 reference statements)

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“…C&D waste dumping into landfills leads to natural resource depletion and problems associated with energy and material conservation [1]. C&D waste also creates negative impacts on the environment, economy, and in the public health and social life [19]. The negative environmental impacts of C&D wastes are water and soil pollution, air pollution, and adverse effects on flora and fauna, whereas loss of primary resources and fuel consumption in transportation are the economic impacts [19].…”

Section: Candd Waste and Its Impactsmentioning

confidence: 99%

Adopting the Zero Waste Concept for Eliminating C&D Waste in the Construction Industry

2019

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Construction industry is one of the key economic players in any region, where Construction and Demolition (C&D) waste generation occurs due to continuous construction and demolition activities. The C&D waste mainly comprises cement, timber, brick, concrete, aluminium, tile, steel, plastic, polythene, paper, and cardboard. Such wastes have led to several environmental, economic, and social issues over the past years. Therefore, C&D waste management is considered as a persuasive matter that needs to address, and hence, the “Zero Waste” concept has emerged as a solution to eliminate the C&D waste. Zero waste is the elimination of waste at the source and throughout the construction activity. Accordingly, implementation of the Zero waste concept in the construction industry helps to optimise the use of natural resources, reduce environmental issues and to promote sustainability. However, only limited studies are available on zero waste management in the construction industry, and hence the present study aims to investigate the adoption of zero waste concept to eliminate C&D waste in developing countries. The paper outcomes based on a comprehensive literature review and the significant findings of this research paper are the recognition of strategies, enablers, and barriers to adopting zero waste concept in the construction industry.

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Section: Candd Waste and Its Impactsmentioning

confidence: 99%

Adopting the Zero Waste Concept for Eliminating C&D Waste in the Construction Industry

2019

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“…This approach considers the interrelationship between the states of parameters through a Markov state transition probability matrix and the set model of a time buffer to absorb the effect of potential disturbances. On the other hand, Yuan et al (2017) combined MC simulation with Building Information Modelling (BIM) to establish a method that considers a scale of warning boundaries according to the project risk probability. This proposal considers simulating the schedule every time an activity finishes so that the risk probability can be estimated, and the warning scale can be used.…”

Section: Literature Reviewmentioning

confidence: 99%

A Simulation-Based Scheduling Methodology for Construction Projects Considering the Potential Impacts of Delay Risks

Paz

Rozenboim²,

Cuadros³

et al. 2018

CEB

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This paper tackles the problem of scheduling construction projects considering the influence of delay risks. In the actual body of knowledge, several methods have been proposed to handle this problem, starting from the Project Evaluation and Review Technique to advanced simulation models. However, this investigation proposes a novel integration of one methodology with some approaches already existing in the literature related to Monte Carlo Simulation scheduling techniques as seen from the perspective of a practitioner. The research began with a literature review of both schedule risks and Monte Carlo based scheduling models for construction projects. Based on this, the methodology was designed with the constant participation of experts in the construction industry. As result of this, a comprehensive and practical methodology was constructed. Therefore, a new mathematical structure for the simulation model within the methodology was formulated in which a new concept for each risk defined as “potential impact” was used. Moreover, the simulation model is based on the judgment of experts and methods of the known literature such as the explicit model of the occurrence probability of the risks and the activity-risk factor matrix. Then, to validate the tool, the proposed methodology was applied using the information of an already constructed construction project of a public university of Colombia. The obtained results were a confidence-based forecast of the end date of the project and a quantitative importance measure of the modelled risks. These results were compared against the real history of the project since it was found an excellent performance of the proposed methodology. To sum up, the research process described above supports the validity of the proposed methodology.

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“…With the purpose of reducing the amount of C&D waste disposed to landfills, policy-makers in local or central governments have introduced increasingly stringent regulations and fees on the disposal of C&D waste, namely C&D waste disposal charges (CDWDC) and such government-initiated programs has been found to be generally effective in controlling the amount of C&D waste [13][14][15]. Imposing CDWDC can make C&D waste producers responsible for the waste they generate, as often referred to as the "polluter pays principle", and ultimately demotivate disposal of C&D waste to landfills.…”

Section: Introduction and Research Backgroundsmentioning

confidence: 99%

System Dynamic Analysis of Impacts of Government Charges on Disposal of Construction and Demolition Waste: A Hong Kong Case Study

Ahn

Kim

2018

Sustainability

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Abstract:With the purpose of reducing the amount of construction and demolition (C&D) waste disposed to landfills, many countries and municipalities have introduced increasingly stringent C&D waste disposal charges (CDWDC) but the level of CDWDC is often determined without a clear understanding of its broad and complex impacts. Against this background, this paper aims to propose a system dynamics (SD) model that can help predict CDWDC's environmental implications as well as its financial implications. Specifically, the proposed model explains complex causal relationships between variables such as the level of CDWDC, the amount of C&D waste disposed to landfills, the government's revenues from CDWDC as well as the costs of supplying and operating landfills over time. For a case study, the developed model is customized and calibrated with actual data from Hong Kong, where the remaining capacities of existing landfills are limited and the need for supplying more landfills is imminent. The simulation analysis with the model predicts that the current charging levels may not be high enough to effectively control the amount of C&D waste disposed to landfills or to compensate for the costs to the government of supplying additional landfills. The analysis also predicts how much illegal dumping may increase as the level of CDWDC increases. This case study illustrates that the proposed SD model can help policy makers to see the potential impacts of increased CDWDC on the amount of C&D waste disposed to landfills, government costs and the amount of illegal dumping of C&D waste; and can therefore help them to determine the most appropriate level of CDWDC.

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Barriers and countermeasures for managing construction and demolition waste: A case of Shenzhen in China

Cited by 176 publications

References 33 publications

Adopting the Zero Waste Concept for Eliminating C&D Waste in the Construction Industry

Adopting the Zero Waste Concept for Eliminating C&D Waste in the Construction Industry

A Simulation-Based Scheduling Methodology for Construction Projects Considering the Potential Impacts of Delay Risks

System Dynamic Analysis of Impacts of Government Charges on Disposal of Construction and Demolition Waste: A Hong Kong Case Study

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