scholarly journals Digital Platform for Circular Economy in AEC Industry

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Iva Kovacic ◽  
Meliha Honic ◽  
Marijana Sreckovic
Keyword(s):  
Construction Industry ◽  
Circular Economy ◽  
Digital Technologies ◽  
Information Modeling ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Data Repositories ◽  
Ongoing Research ◽  
Digital Platform ◽  
Use Of Resources

The construction industry is one of the world´s largest consumers of resources (sand, building materials) and produces significant amounts of waste. Simultaneously it is one of the least digitalized industries. With increasing levels of urbanization, scarceness of resources and lack of landfills, the policy of circular economy (CE) is becoming increasingly important in the construction industry. The European Union is obliging material recovery of construction and demolition waste to a minimum of 70% by weight by 2020 for all new construction projects. Simultaneously, digitalization in construction is one of the major goals in the EU digitalization action plan. We thereby hypothesize that digital technologies have significant potential to support CE in Architecture, Engineering and Construction (AEC) in multiple ways – for assessment of resources as well as for the prediction and optimization of upcoming waste and recycling masses. Based on our conducted and ongoing research projects - BIMaterial: Process-Design for a BIM-based Material Passport; SCI_BIM: Scanning and data capturing for the Integrated Resources and Energy Assessment using Building Information Modeling; and finally a Case Study reviewing digital tools and processes within a large design and planning company (DPC) - we assess to which degree and to what purpose digital technologies are used, and define the potentials and challenges for the realization of CE objectives in the construction industry. Based on the conducted assessment, we propose a framework for a Digital Platform for Circular Economy (DEEP), integrating various stakeholders and data repositories on the external (inter)-firm and internal (intra)-firm level, using open interfaces. Such a platform for the AEC aims to optimize the use of resources in the circular economy – from cradle to grave, foster mutual learning and coordination, and finally generate added value along the life cycle of a building project.

Circular economy in Brazilian construction industry: Current scenario, challenges and opportunities

2021 ◽  
pp. 0734242X2110450
Author(s):  
Tatiane Isabel Hentges ◽  
Elaine Aparecida Machado da Motta ◽  
Tania Valentin de Lima Fantin ◽  
Deivid Moraes ◽  
Mauro Acir Fretta ◽  
...  
Keyword(s):  
Construction Industry ◽  
Circular Economy ◽  
Green Building ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Industrial Sectors ◽  
Challenges And Opportunities ◽  
Building Information ◽  
Current Scenario ◽  
The Government

The effective implantation of the circular economy (CE) presents a great challenge to the industrial sectors, mostly in those of greater environmental impact, such as construction industry. In Brazil, this industry has been growing over the last 20 years; however, such growth was based on an extractivist economy without any consideration to the end of its products lifespan. Only in 2017, 45 million tonnes of construction and demolition waste were generated in the country. This paper presents the current context of public policies in the Brazilian construction industry and proposes initiatives to introduce principles of CE. An exploratory study was developed, and all the 45 references presented in Appendix A of the review paper of Benachio et al. were considered to draw new ideas. These ideas are related and compared to key points in Brazilian regulations. Twelve opportunities for the improvement are listed and organized by construction stages (planning and design, materials manufacturing, construction processes, use and demolition). The ones related to design and planning using Green building information modelling, and materials manufacturing with recycled waste are highlighted due to the existing actions, standards, and Federal legislation. It was found that some sectors and the government already have actions related to CE (based on the 3R principle), but still there are several initiatives needed for its effective implementation in the Brazilian construction industry.

scholarly journals Building Information Modeling (BIM) for Construction and Demolition Waste Management in Australia: A Research Agenda

2021 ◽  
Vol 13 (23) ◽  
pp. 12983
Author(s):  
Dongchen Han ◽  
Mohsen Kalantari ◽  
Abbas Rajabifard
Keyword(s):  
Waste Management ◽  
Research Agenda ◽  
Building Information Modeling ◽  
Ecological Impacts ◽  
Information Modeling ◽  
Construction And Demolition Waste ◽  
Full Potential ◽  
Demolition Waste ◽  
Ongoing Research ◽  
Building Information

Construction and demolition waste (C&DW) contribute to approximately 30% of the total waste generation worldwide, by which heterogeneous ecological impacts, such as resource depletion, global warming, and land degradation, are engendered. Despite ongoing research efforts to minimize construction waste via the Building Information Modeling (BIM)-aided design, there is a paucity of research on integrating BIM in demolition waste management (DWM). This study investigates prominent barriers and future research directions toward the wider adoption of BIM in C&DWM by conducting a systematic literature review. First, this study identifies the barriers that hinder the implementation of C&DWM in Australia; then, it explores the benefits and challenges of leveraging BIM applications for C&DWM. The findings suggest that, for existing buildings without up-to-date design drawings, it is imperative to improve the accuracy of data capturing and object recognition techniques to overcome the bottlenecks of BIM-DWM integration. Moreover, the development of regional-oriented material banks and their harmonization with life cycle assessment databases can extend the potential of BIM-based sustainability analysis, making it applicable to the DWM domain. This study proposes a research agenda on tackling these challenges to realize BIM’s full potential in facilitating DWM.

The Traceability of Construction and Demolition Waste in Flanders via Blockchain Technology: A Match Made in Heaven?

2021 ◽  
Vol 18 (4) ◽  
pp. 347-369
Author(s):  
Jonas Voorter ◽  
Christof Koolen
Keyword(s):  
Circular Economy ◽  
Construction And Demolition Waste ◽  
Waste Processing ◽  
Construction Sector ◽  
Sustainable Society ◽  
Demolition Waste ◽  
Blockchain Technology ◽  
Legal Case ◽  
Made In

Abstract The construction sector plays a crucial role in the transition to a circular economy and a more sustainable society. With this objective in mind, Flanders – the Dutch speaking part of Belgium – makes use of a traceability procedure for construction and demolition waste in order to guarantee that value can be derived from downstream waste processing activities. This article takes this traceability procedure as a legal case study and examines if the use of blockchain technology could lead to even stronger supply chains, better data management, and, more generally, a smoother transition to circular practices in the construction sector.

scholarly journals Evaluation of Rules and regulation of Construction and Demolition Waste Management (CDWM) in India

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2642-2644
Keyword(s):  
Environmental Impact ◽  
Waste Management ◽  
Construction Industry ◽  
Construction And Demolition Waste ◽  
Construction Sites ◽  
Demolition Waste ◽  
Construction Waste

The rules and regulations on waste management in the construction and demolition sector are analyzed corresponding to the present scenario of C&DW in India. C&D waste from construction sites has emerged as a significant threat to India because of its severe footprint on the environment. Vast quantities of construction waste will have unfavorable consequences on the surroundings if they are not properly managed. Therefore it is necessary to manage the development of C&DW by the experts within the construction industry. The approach represented is specialized in rules and regulations on waste management so that the environmental impact of construction activities can be minimized.

scholarly journals Circular Economy on Construction and Demolition Waste: A Literature Review on Material Recovery and Production

Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 2970 ◽  
Author(s):  
Clarence P. Ginga ◽  
Jason Maximino C. Ongpeng ◽  
Ma. Klarissa M. Daly
Keyword(s):  
Literature Review ◽  
Circular Economy ◽  
Business Models ◽  
Latent Dirichlet Allocation ◽  
Traditional Approach ◽  
Construction And Demolition Waste ◽  
The European Union ◽  
Demolition Waste ◽  
Material Recovery ◽  
New Construction

Construction and demolition waste (CDW) accounts for at least 30% of the total solid waste produced around the world. At around 924 million tons in the European Union in 2016 and 2.36 billion tons in China in 2018, the amount is expected to increase over the next few years. Dumping these wastes in sanitary landfills has always been the traditional approach to waste management but this will not be feasible in the years to come. To significantly reduce or eliminate the amount of CDW being dumped, circular economy is a possible solution to the increasing amounts of CDW. Circular economy is an economic system based on business models which replaces the end-of-life concept with reducing, reusing, recycling, and recovering materials. This paper discusses circular economy (CE) frameworks—specifically material recovery and production highlighting the reuse and recycling of CDW and reprocessing into new construction applications. Likewise, a literature review into recent studies of reuse and recycling of CDW and its feasibility is also discussed to possibly prove the effectivity of CE in reducing CDW. Findings such as effectivity of recycling CDW into new construction applications and its limitations in effective usage are discussed and research gaps such as reuse of construction materials are also undertaken. CE and recycling were also found to be emerging topics. Observed trends in published articles as well as the use of latent Dirichlet allocation in creating topic models have shown a rising awareness and increasing research in CE which focuses on recycling and reusing CDW.

scholarly journals Promotion of Circular Economy: Steelwork Dusts as Secondary Raw Material in Conventional Mortars

Proceedings ◽  
2018 ◽  
Vol 2 (20) ◽  
pp. 1313
Author(s):  
Angélica Lozano-Lunar ◽  
Auxi Barbudo ◽  
José María Fernández ◽  
José Ramón Jiménez
Keyword(s):  
Construction Industry ◽  
Circular Economy ◽  
Construction Material ◽  
Previous Treatment ◽  
Point Of View ◽  
Raw Material ◽  
The European Union ◽  
Use Of Resources ◽  
Leaching Behaviour ◽  
Secondary Raw Material

Among the actions proposed by the European Union for the implementation of Circular Economy is the use of waste as a secondary raw material (SRM). During the fusion of the scrap, a steel dust is generated, named Electric Arc Furnace Dust (EAFD). The EAFD is composed mainly of potentially leachable heavy metals, so is classified as “hazardous” waste. Around the world, approximately 70% of this waste is deposited in landfills, with a previous treatment through cement-based materials to prevent the metals’ mobility. However, this action is not in accordance with the Circular Economy concept due to the greater use of resources and the loss of deposited metals. The present investigation analyses the use of EAFD as SRM in conventional mortar production for its use as a construction material. Different substitution percentages (25%, 50% and 100%) were used replacing siliceous filler by EAFD. The investigation analysed the behaviour of conventional mortars by tests of workability, compressive strength, water absorption by capillarity and leaching behaviour in granular and monolithic state. The results obtained indicate a slight improvement in mechanical behaviour with the incorporation of EAFD, the reason why its use as SRM in conventional mortars would benefit the construction industry and would encourage the Circular Economy. From an environmental point of view, the mechanisms of Pb fixation should be improved in granular state.

Cement Artifact Produced with the Construction and Demolition Waste-CDW

2014 ◽  
Vol 600 ◽  
pp. 638-647
Author(s):  
Marina H.S. Santos ◽  
Albéria C. Albuquerque ◽  
Juzélia S. Costa
Keyword(s):  
Environmental Impact ◽  
Construction Industry ◽  
Reference Sample ◽  
Building Construction ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Technical Standards ◽  
Construction Waste ◽  
The Cost ◽  
Physical And Chemical

The project aims to use waste generated in the building construction industry as aggregate for use in artificial artifact of cement, replacing natural aggregate. We investigated the development of mechanical strength of bricks made ​​from construction waste, compared to a reference sample without residue. In this investigation were used mechanical, physical and chemical tests contained in current technical standards. The results demonstrated the viability of this product for masonry sealing. The feasibility of the product, reducing the cost and environmental impact justifies the relevance of the project.

scholarly journals Unification of the development of information models of buildings at the demolition stage

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Alexander Ginzburg ◽  
Anastasiia Khaustova
Keyword(s):  
Building Design ◽  
Information Modeling ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Building Projects ◽  
Information Models ◽  
Phase Calculation ◽  
Modeling Software ◽  
Moscow City ◽  
Design Characteristics

The study aims to develop standardized BIM methods for buildings that are part of the Moscow city renovation program. This problem is extremely urgent, since there are no digitized sources of typical projects of the last century, and this complicates the process of calculating the generation of construction and demolition waste and casts doubt on its accuracy. At the stage of high quality and timely dismantling phase (calculation of the weight of construction and demolition waste, scheduling of work and transportation of waste), this process can be automated using information modeling software – Autodesk Revit 2019. This will complement the existing information model by including in it one of the final stages of the building’s life cycle – dismantling, which in transparency, accessibility and completeness will not be inferior to the blocks of design, examination, construction and operation. On the basis of albums of typical building projects, you can get a lot of information to create the necessary project families and specifications, which will greatly simplify and speed up the process of developing building demolition projects in the future, since with each new project libraries of elements, materials, families will be supplemented. The article presents the process of developing a project template for the phase of the dismantling of buildings. A new project parameter has been created, assigned to each material of the project template, the necessary parametric and design characteristics have been assigned for further calculations based on the simulated building design, a design specification has been developed, on the basis of which data on the weight of construction and demolition waste can be quickly obtained, relevant checks carried out for different types of developed and basic project families.

scholarly journals GERAÇÃO DE RESÍDUOS NA CONSTRUÇÃO CIVIL

2021 ◽  
Vol 9 (209) ◽  
pp. 1-16
Author(s):  
Samira Mansur Monteiro de Barros
Keyword(s):  
Construction Industry ◽  
Raw Materials ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Public Places ◽  
Construction Waste ◽  
Final Destination ◽  
Negative Impacts ◽  
The One

The problems arising from construction and demolition waste have always been in our country. The civil construction industry is the sector that generates the most waste that impacts society and is the one that consumes the most raw materials. As a result, it is necessary and extremely important that there is a sustainable management of construction waste. The irregular dispositions of these residues cause many negative impacts to the environment, since they are often thrown in vacant lots, permanent preservation areas, roads and public places, harming the quality of life of the population. Recycling can generate a significant economic advantage in relation to the final destination both in regular deposits and mainly in relation to the irregular ones that cause so much damage to the environment. This study sought to collect information on the current situation on construction waste. And in order to be developed, the present work used bibliographic research in books, specialized magazines, periodicals, and electronic media. Concluding in the final considerations, in which vital points of the research are presented followed by the stimulations the continuity of the studies and the reflections on the generation of solid residues in the civil construction.

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