Resources Conservation and Waste Management Practices in Construction Industry (original) (raw)
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Managing and Minimizing Waste Generation During Construction: Approaches and Responsible
2012 UBT International Conference
Construction Waste is a well known and a serious threat to the environment therefore there are a number of existing approaches toward its management. It (construction waste) is considered recyclable up to 80-90%, which is quite a promising factor especially giving the fact that recycling is only one of the steps in the construction waste management process along with reduce, reuse, and dispose. While taking this into consideration there is still doubt as to ‗Why is Construction Waste still an issue to the environment? Does it get the required and deserved priority? If yes, by who and how?' While analyzing and comparing different models of construction waste management by different authors, this paper tries to find the main participants in this process as well as the main factors of its success or failure. This is done by studying articles on waste management and comparing these models in order to better understand their concept. Throughout analysis, this paper concludes quite a few similarities between these models, and moreover, their outcome seems to be induced by the same factors. Contractors, designers, clients and the government itself appear to be the main participants in the managing process, along with other factors. To improve the outcome of these models, proposals have been given, being mostly related to new legislation, regulation and policies. Whatever the difference and the outcome, these new legislation and policies might make, the approach of raising the awareness of the public and of the construction industry towards this issue turns out to be just as important.
Construction and Demolition Waste Management Practices at Construction Sites
Most of the construction and demolition waste is disposed of in irregular or clandestine landfills, causing environmental, social and economic impacts. These impacts cause damage to the environment, society and public administration, since they cause silting up of rivers, obstruction of public roads and generate expenses with collection and cleaning. The objective of this study is to present practices applied on construction sites for the reduction and final disposal of waste (CDW) through an analytical-descriptive and qualitative field research, conducted in three construction companies located in the city of Manaus-Amazonas. Photographic records were used for simple and georeferenced images, in addition to the application of specific questionnaires. In the three companies evaluated (A, B and C), it was observed that only one correctly practiced the disposal of waste, while the other two did not know the laws and obligations regarding the correct management. Due to this problem, a new flowchart was defined with new stages of construction planning, based on CONAMA Resolution 307/2002, which defines waste management in terms of planning, responsibilities, practices, procedures and resources. Graphic materials containing good practices for waste management (RCD) were manufactured and disseminated in companies A, B and C, aiming at reducing, reusing or recycling waste on construction sites. The graphic materials, which were also disclosed through internal lectures, also presented alternative solutions through constructive technologies for storage, conditioning, transportation and reuse of waste.
The Open Construction and Building Technology Journal, 2011
The construction industry, one of the most important ones in the development of a country, generates unavoidable impacts on the environment. The social demand towards greater respect for the environment is a high and general outcry. Therefore, the construction industry needs to reduce the impact it produces. Proper waste management is not enough; we must take a further step in environmental management, where new measures need to be introduced for the prevention at source, such as good practices to promote recycling. Following the amendment of the legal frame applicable to Construction and Demolition Waste (C&D waste), important developments have been incorporated in European and International laws, aiming to promote the culture of reusing and recycling. This change of mindset, that is progressively taking place in society, is allowing for the consideration of C&D waste no longer as an unusable waste, but as a reusable material. The main objective of the work presented in this paper is to enhance C&D waste management systems through the development of preventive measures during the construction process. These measures concern all the agents intervening in the construction process as only the personal implication of all of them can ensure an efficient management of the C&D waste generated. Finally, a model based on preventive measures achieves organizational cohesion between the different stages of the construction process, as well as promoting the conservation of raw materials through the use and waste minimization. All of these in order to achieve a C&D waste management system, whose primary goal is zero waste generation.
Reducing Material Wastes in Building Construction Sites: An Action for Sustainable Development
Civil and environmental research, 2016
Construction material waste has both environmental and cost performance consequences. In this period of global economic recession and environmental awareness, it has become necessary to adopt effective waste reduction strategies in order to reduce the cost of construction projects as well as produce environmental friendly projects. The aim of the study is to identify the effective waste reduction methods in building construction sites so that developers and construction professionals can key into the different methods in order to bring about qualitative project delivery and enhanced sustainable development. Reviewing some literatures related to the topic, the study identified the sources of construction wastes, the implications of wastes and ways of controlling them. The review equally revealed that consciousness of the implication of waste is very little appreciated considering the fact that the level of environmental awareness and willingness to pursue the goal of sustainability i...
Sustainable Approach to ManagingConstruction and Demolition Waste: AnOpportunity or a New Challenge?
2015
The handling of wastes remain a perpetual problem, all construction and demolition works and activities are confronted to this issue. Many investors, clients, construction and demolition professionals consider C&D waste management one of the most essential green construction practices in support to energy efficiency. In fact, there is a growing interest in sustainable waste management as potential stakeholders are pursuing innovative and integrated waste management and environmental strategies. Sadly, most traditional approach to reducing C&D waste is considered to be unsustainable as it lacks flexibility and long-term reliability. Thus, the move to a more sustainable society requires sophisticated approach to manage C&D waste, which incorporate feedback loops and focus more on processes, embodies adaptability and diverts waste from landfill disposal. This paper review current C&D waste management practices and propose a conceptual framework for optimising C&D waste management. The ...
The Baltic Journal of Road and Bridge Engineering, 2014
The civil engineering sector has to assume among its aims the reduction of the construction and demolition waste generated by it. To this end, foreseeing the amount of construction and demolition waste to be generated, as well as the time phase in which they might be produced, will allow for planning good environmental practices on site, both in a general way -for all the waste -as for each individual category of waste. The aim of this research paper is to determine the major categories of construction and demolition waste produced in railway construction works, and the construction stages where they are mainly generated. At the same time, a Best Practices Manual including a relation of best practices for on-site waste management is proposed and could be included in the Internal Quality System of the companies. Results of this study show that establishing and implementing a Best Practices Manual in engineering works for the phases of construction of tunnels, preliminary works and ground movement involves the management and minimization of almost 95% of the total waste generated. In addition, integrating the Report and Management Plan of construction and demolition waste together with the Best Practices Manual, promotes the environmental management of the company, favouring the cohesion of the construction process organization at all stages giving rise to establishing responsibilities in the field of waste and providing a greater control over the process.
Construction and Demolition Waste Management
IJREAM PUBLISHING HOUSE, 2023
The necessity for waste management in India arises from the fact that the country is a developing nation with a correspondingly rising rate of garbage production. Population growth, the expansion of the information technology industry, the emergence of new infrastructure projects, and the rise of industrialisation have all contributed to the rapid expansion of the construction sector. The excessive waste of materials during construction is a significant source of financial stress for builders. Having trash around has negative effects on our health, our ecology, our aesthetic sensibilities, and our appreciation of art. The local building sites in India are notorious for their enormous loss of material, poor management of materials, and lack of awareness regarding the reduction and proper utilization of waste materials. Recycling as much as 80%-85% of Europe's total construction waste would have significant economic benefits. They use simple, effective recycling technologies that reduce material waste significantly. There is a pressing need to address the problem of waste management, since trash can have serious negative effects on our nation. Due to a lack of discipline, attention to detail, regulatory oversight, and strict administration, accurate waste material estimates are not possible in India. In this paper, we'll look at one approach to dealing with the problem of building debris. To learn about construction and demolition waste management, how to cut down on waste, and the process of doing so are central to this project. As material waste is decreased, supply increases, the growing population's needs are met, and fewer resources go to waste. In addition to the well-known causes of waste, such as carelessness with product sizing, inadequate contractor input, and inadequate building expertise, there are many other potential contributors. The building and construction sector is responsible for a sizable proportion of the garbage produced. As a result, reducing construction waste has become a hot concern among governments around the world. The construction industry saves money when waste is eliminated because of lower deposition costs and cheaper expenses for obtaining virgin materials. Here, the government's primary sustainability-related policy domains are outlined for the reader. The 3R concept of reuse, reduction, and recycling is discussed in further depth in this study as a technique by which to better manage garbage.
Resources, Conservation and Recycling, 2003
A model is presented for evaluating waste management systems for their contribution to a sustainable development, including environmental, economic and social aspects. The model was tested in a case-study, where groups of long-term unemployed people were offered both education on environmental issues and practical work with the recovery and recycling of building and demolition waste as a form of vocational development. Application of the suggested model revealed the overall effects on sustainability of different methods of waste management. In addition, negative aspects of the systems analysed were identified, which led to discussions about possible improved practices within the waste management systems. Two of the waste management systems investigated (the recycling of steel and re-use of sanitary porcelain) showed a potential contribution to sustainable development in all of the aspects studied. Preparing bricks for re-use showed the largest potential for eco-efficiency, but had negative effects on sustainability from the social perspective of health and the working environment. The possibility of further use of the model and the remaining obstacles to such analyses are discussed. One observation is that the data collection needed to perform this kind * Corresponding author. Tel.: '/46-63-165760; fax: '/46-63-165-450. E-mail address: anders.klang@mh.se (A. Klang).
The Need for a Proper Waste Management Plan for the Construction Industry: A Case Study in Lebanon
Sustainability
The construction industry is known as one of the biggest generators of solid waste. Considering this, attention needs to be paid to construction and demolition (C&D) waste. Lebanon has experienced many situations that have increased the generation of C&D waste. Therefore, it is essential to manage C&D waste. This research aims to assess and analyse the importance of waste management plans and their impact on the generation of construction and demolition waste in Lebanon. For this purpose, an extensive literature review has been carried out, and a questionnaire survey consisting of five sections has been developed. Factors were ranked by using 5-point Likert scales. Additionally, four optional open-ended questions were also included in the survey for qualitative data collection. A survey questionnaire was sent to 80 Lebanese experts, and 50 questionnaires were returned. Most of the responses (i.e., consultants and academics) were from the private sector; results showed that responden...
Sustainable Management of Construction and Demolition Waste
International Journal for Research in Applied Science and Engineering Technology (IJRASET), 2021
Construction activity in India has magnified well within the past decade. Likewise, there has conjointly been a proportion to rise within the generation of construction and demolition waste (C&DW). This, alongside the fact that in India the speed of recycling and reuse of C&DW continues to be quite low and has engendered a heavy environmental downside and a motivation to develop ways and management plans to resolve it. Almost every time the construction and demolition waste end up settling in landfills disrupting the environmental, economic, and social life cycle. Its composition has a significant potential to reuse or recycle C&DW, and thereby, contribute to enhancing the sustainability of construction, however, practical procedures don't seem to be widely known or practiced within the construction industry. Elements of construction and demolition waste generally embrace concrete, asphalt, wood, metals, roofing, paper, plastic, drywall, and glass. Sustainable development defines as accomplishing the current requirements without compromising the ability of future generations to satisfy their own needs and can be thought of as one of the concrete solutions to resolve construction and demolition waste downside. Sustainable development in construction can facilitate plenty to cut back the issues associated with the environment and natural resources as the construction industry is among the major user of the world's resources. Sustainable design, correct use, and reuse of the resources/construction materials can create the construction industry a lot more economical and greener. There's conjointly a large demand for natural aggregates within the construction sector with a big gap in its demand and supply, which may even be reduced marginally by the employment of recycling and reuse of construction and demolition waste. Correct handling, storage, and treatment of C&D waste not only solely forestall degradation of Mother Earth but even have an important impact on sustainability using reducing the usage of natural resources. The paper covers various issues associated with the reusing and recycling of C&D waste, which needs restrictive mechanisms and procedures to be followed for achieving the aim of sustainability in the construction industry. I.