Construction Waste Management Plan Research Articles

Identification of constraints for an effective application of construction waste management plan in Poland

Identification of constraints for an effective application of construction waste management plan in Poland

The Assessment of Waste Segregation Exercise Among Malaysian Contractors: A Descriptive Analysis

Construction waste that emerges from construction sites has become a major global concern due to its negative carbon footprint on the environment. Due to underrepresented construction waste specific data in Malaysia, this paper aims to identify sources, causes, types of construction waste and decision-making factors of construction waste management in Malaysia's construction sites. A questionnaire survey was administered to 60 construction practitioners representing different construction sites in Peninsular Malaysia. A descriptive analysis using the Relative Importance Index (RII) was used to rank the items asked in the survey and categorised them into high (RII>70%), medium (50%<RII<70%) or low (RII<50%) importance levels. The findings show that the top-ranked sources of construction waste categorised as high importance level are demolition, site clearance, and refurbishment. The causes, insufficient construction waste management plan, incorrect materials, design changes, over-ordering, errors in the contract document, and on-site technical errors are ranked as highly important. The top common waste materials include concrete, brick, metal, wood, glass and paper. The importance of all decision-making factors is high-rated; unexpectedly, environmental impact is the least important reason for construction waste management contractors. The results provide a perspective of the current practices of construction waste in Malaysia. The outcome is useful for waste managers and policymakers in developing potential waste management strategies for a more sustainable construction industry.

Environmental Consequences Of Urban Expansion: Case Study Of Environmental Licensing Processes In The Municipality Of Governador Valadares

Urban growth is often accompanied by significant environmental changes, which include modification of the natural landscape and the problems related to it, such as real estate speculation, marginalization of the population, landslide risks, flooding, as well as pressure on environmentally protected areas. Therefore, it is necessary to understand how will new urban development affect the already modified space without generating further environmental problems. The research aimed to analyse five projects of allotments in Governador Valadares/Brazil between 2015 and 2017. Besides the information on the projects themselves, geographic information systems (GIS) were used along with laws and bibliography. The biggest obstacle observed was the lack of standardization in the process required by the City Hall, which culminated in projects with different characteristics, including those that did not present important analyzes, such as the Civil Construction Waste Management Plan. It is necessary to move forward in discussions related to urban environmental sustainability, standardizing the possible actions, not only in the municipality of Governador Valadares.

Plano de Gerenciamento de Resíduos da Construção Civil: Uma Revisão Sistemática da Produção Científica Brasileira de 2003 A 2016

Objetivo do estudo: Apresentar uma revisão sistemática sobre o plano de gerenciamento de resíduos da construção civil publicadas entre os anos de 2003 e 2016 na área de avaliação de Administração, Ciências Contábeis e Turismo da Capes com classificação no sistema Qualis nos estratos A1 à C. Metodologia/abordagem: Esta pesquisa de abordagem qualitativa e quantitativa, e caráter exploratório, foi baseada em uma pesquisa bibliográfica e documental realizada nos meses de outubro e novembro de 2016 e analisou 18 estudos que abordaram de algum modo o PGRSCC. Originalidade/Relevância: Assunto ainda é relativamente novo nas pesquisas científicas brasileiras. Principais resultados: Todos os artigos selecionados estavam atrelados à sustentabilidade, com ênfase nos impactos nocivos que a atividade causa ao meio ambiente. Contribuições teóricas/metodológicas: Disseminação da temática no meio acadêmico, social e empresarial. Conclusão: Mapeamento dos principais enfoques em torno da temática e comportamento das pesquisas no âmbito brasileiro.

Methodology for upstream estimation of construction waste for new building projects

Construction waste includes waste arising from construction works such as new build, renovation, demolition and road works. Through waste sorting and separation, inert material can be used to fill in reclamation sites; however, the non-inert portion of the construction waste still goes to landfills. However, Hong Kong is running out of landfill space. When determining reduction and management strategies for construction waste, the Government's objectives are to reduce waste generation, maximize reusing and recycling and reduce the intake of mixed construction waste at landfills. In order to develop and implement the waste reduction and management strategies at project level, proper quantification of construction waste generation is a prerequisite. Our research reveals that limited information is currently available for understanding the magnitude and composition of construction waste and for preparing an appropriate construction waste management plan for a project on new or existing facilities. To bridge the gap, the aim of this research is to present a comprehensive and practical approach for estimating the construction waste for building projects once detail design is carried out for new build or major retrofitting works. The estimation of waste quantities is based on the actual design information available from tender or contract documentation for a project at the upstream stage (a full set of bills of quantities classified under standard format). The proposed methodology of aggregating wastages accruing to quantified elements for a complete building has its advantages over a ball park figure established through indexing or other methods as proposed in existing literature, in terms of ensuring accuracy and maximizing the use of available design information whilst the workflow is uninterrupted.Three representative case studies with different formwork and façade systems are depicted to highlight the significant effects on waste generation in otherwise similar construction projects.

Contractors’ perception on construction waste management case study in the City of Bandar Lampung

Construction industry in the City of Bandar Lampung is a big industry and at an increasing trend. Industrial construction generates considerable amount of construction waste where the volume reaches four times of the household waste. With the increased cost of waste disposal as well as the capacity of city’s final waste dump site of Bakung will not be able to accommodate municipal solid waste in the near future; it is important to implement construction waste management. This paper presents the study on contractors’ perception on construction waste management. The perceptions were gathered through opinion survey to contractors that carrying out new construction, renovation and demolition projects in the City of Bandar Lampung in 2017. The respondents are professionals in construction projects that were selected based on purposive sampling represented contractors from both private and government owned companies. The questions asked consist of questions with open and closed questions. The result expecting from this study is to understand how the characteristics of project impact the benefits of implementing a construction waste management plan. Therefore, maximizing these factors can maximize the benefits.

Importância do gerenciamento de resíduos sólidos na construção civil

Este estudo tem a finalidade de demonstrar a importância do gerenciamento dos resíduos sólidos oriundos da construção civil, expor a importância do Plano de Gerenciamento de resíduos sólidos e apresentar os benefícios e vantagens do Plano de Gerenciamento de resíduos sólidos para a obra, uma vez que, o setor da construção civil gera toneladas de Resíduos Sólidos todos os anos, onde a grande maioria destes resíduos são descartados de forma inadequada e sem preocupação com o meio ambiente. Além da produção exacerbada e exorbitante dos resíduos, existe ainda o aumento no custo dos materiais pela falta de gerenciamento destes, o que gera desperdício, conseqüentemente, despejo e acúmulo de resíduos sólidos na natureza. A realização da pesquisa foi feita através da realização da revisão bibliográfica em autores que já discorrem e pesquisaram sobre o tema. Concluiu-se ao final da escrita, que a implantação do Plano de Gerenciamento de Resíduos da Construção Civil, é perfeitamente viável para a construção civil e os benefícios vão de uma redução de 50% a 96% na geração de resíduos sólidos por mês nas obras de construção civil. Isto representa ganhos para a empresa e para o meio ambiente.

A field based methodology for estimating waste generation rates at various stages of construction projects

The growth in construction activities over the past two decades has resulted in a parallel increase in the amount of generated construction waste. This growth, coupled with shortages in landfill space particularly in urban areas, has proven to be a challenging stressor to the environment. Management of construction waste has thus become a problem attracting increasing attention worldwide. In this context, the quantification of waste streams generated from various construction stages is the first step for managing construction waste. In this study, a methodology for quantifying waste streams arising at various construction stages is proposed. The methodology is then tested at a field scale to estimate generation rates for major waste streams and the total construction waste generation rate for the purpose of developing a generalized construction waste management plan that can be applied at a city/regional/country level. The results of the study reveal that the total construction waste generation rate falls within the range of 38–43kg/m2, with masonry and concrete constituting more than 60% of the total waste. The study concludes with a set of recommendations addressing the most important issues contributing to a successful implementation of an integrated construction waste management plan.

Study of Site's Construction Waste in Batu Pahat, Johor

Rapid growth in construction industry has increased the problems of construction waste around the world. In Malaysia, the construction industry plays a significant role both in the infrastructure development and economic sectors. The construction industry is been regarded as one of the major contributors of negative impact to the environment. To reduce these negative impacts, it needs a comprehensive understanding of the construction waste generation and management. Hence, the objective of this research are to identify the construction waste generation on site, to quantify the physical wastes that are generated at the construction site and to determine the construction waste management plan that have been applied in project. This research involves two ways of data collection which are by interviews and site observation. This study was conducted at three site's projects around Batu Pahat, Johor. The data collection were taken weekly in two month duration. The finding shows that, there were six types of waste produce on the three sites which are timber, metal, concrete, mortar, packaging waste and bricks. Throughout the quantifying data of the construction wastes, it shows that timber wastes were the largest contributor to the construction wastes which then followed by bricks, packaging waste and concrete. Study on construction Waste Management Plan (WMP) at sites had showed that, they were not fully applied of WMP. Hence, to minimize the waste, WMP should be fully applied on site. The finding will be an input to authorities in shaping better policy of construction waste management.

Investigating factors influencing construction waste management efforts in developing countries: an experience from Thailand

Rapid economic growth and urbanization in developing countries lead to extensive construction activities that generate a large amount of waste. A challenge is how to manage construction waste in the most sustainable way. In the developing world, research on construction waste management is scarce and such academic knowledge needs to be responsive to actual practices in the industry in order to be implemented. As construction projects involve a number of participants and stakeholders, their participation and commitment can have a major influence on the goals of green and sustainable construction for urban development. This study provides a significant step in conducting a very first research of this kind in Thailand by aiming to investigate the level of construction stakeholders' commitment as well as the achievement of construction waste management in order to improve short-term practices and to establish a long-term strategic construction waste management plan. In this study, a structural equation model was employed to investigate the influence of factors that are related to environmental aspects, social aspects, and economic aspect of construction waste management. Concern about health and safety was found to be the most significant and dominant influence on the achievement of sustainable construction waste management. Other factors affecting the successful management of construction waste in Thai construction projects were also identified. It is perceived that this study has potential to contribute useful guidelines for practitioners both in Thailand and other developing countries with similar contexts.

A Rule-Based Expert System for Construction and Demolition Waste Management

Problem statement: The construction industry generates lots of construction waste which caused significant impacts on the environment and aroused growing public concern in the local community. Construction waste is becoming a serious environmental problem in many large cities in the world. Approach: In recent years, expert systems have been used extensively in different applications areas including environmental studies. In this study, expert system software -CDWM- developed by using Microsoft Visual Basic was introduced. CDWM to be used for construction waste management plan was designed based on the legal process. Results: According to the construction waste management regulation enacted, construction activities require mandatory construction waste management plan before staring activities. CDWM primarily aims to provide educational and support system for construction engineers and decision-makers during construction activities. It displays construction waste management plan in report form and the best location of construction waste storage area in GIS format. Conclusion: When the use of CDWM in construction waste management plan becomes widespread, it is highly possible that it will be benefited in terms of having more accurate and objective decisions on construction projects which are mainly focused on reducing the construction waste.