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Nedeljković, Marija (author), Visser, Jeanette (author), Nijland, Timo G. (author), Valcke, Siska (author), Schlangen, Erik (author)In the Netherlands, beside cement replacement with more green cement types, there is also an urgent need for alternative materials for natural sand in new concrete in order to make it circular. Furthermore, the recyclers have raised questions regarding upscaling and the potential of fine recycled concrete aggregates (fRCA) in structural concrete...conference paper 2021
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Dong, H. (author), Yao, X. (author), Burgmann, S. (author), Ye, G. (author)Each year a large amount of construction and demolition waste (CDW) is generated in the European Union. For sustainability development the CDW is recycled and re-used. To promote the use of CDW, recycled aggregates from CDW were incorporated in alkali-activated concrete (AAC), which mainly consisted of secondary materials or industrial by...conference paper 2021
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Ulsen, Carina (author), Kahn, Henrique (author), Antoniassi, Juliana L. (author), Martins, Isabel (author)Abstract only - The existing construction waste recycling technologies and standards have been long applied in construction and demolition (C&D) waste recycling, mainly focused on the production and use of coarse recycled aggregates. Very few papers and process focus on the production of recycled sand although some previous results show that...conference paper 2017
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Soutsos, Marios (author)There have been considerable developments in Merseyside and generally in the North West of England over the last fifteen years with regards to the commercialisation of recycled demolition aggregate. Merseyside, and more specifically Liverpool is an urban region that has undergone regeneration in the last fifteen years. This required the...conference paper 2017
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Troiani, Tommaso (author), Lotfi, Somayeh (author)In many developing countries, the rapid growth of town and cities has generated a rising levels of waste and illegal dumps have become a serious issue. The booming construction industry in Mongolia has resulted in the production of massive amounts of CDW which is one of the largest waste streams. In Ulaanbaatar (UB) and other cities in Mongolia,...conference paper 2017
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Lotfi, Somayeh (author), Rem, Peter (author), Di Maio, Francesco (author), Teklay, Abraham (author), Hu, Mingming (author), van Roekel, Eric (author), van der Stelt, Hans (author)Production of waste materials, via industrial and human activities, creates big environmental and economic problems but also opportunities to recover valuable resources. EU28 currently generates 461 million tons per year of ever more complex Construction and Demolition Waste (CDW) with average recycling rates of around 46%. There is still a...conference paper 2017
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Banjad Pečur, Ivana (author), Bagarić, Marina (author), Milovanović, Bojan (author), Carević, Ivana (author)The framework of the research presented in the paper is a project oriented to promote the use of construction and demolition waste (CDW) as a new resource for constructing sustainable and very low-energy buildings. Intensive research activities have been carried out in application of recycled concrete and recycled brick as a replacement of...conference paper 2017
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Braymand, Sandrine (author), Roux, Sébastien (author), Fares, Hanaa (author), Feugeas, Françoise (author)Construction and demolition waste stream has generated news materials that may be reintroduced into new concrete, e.g. as recycled aggregates. The specific feature of recycled concrete aggregates (RCA) is the presence of hardened mortars influencing their behaviour. This study aims to distinguish processes that allow the complete separation and...conference paper 2017
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Krysiński, Dawid (author)The main goal of this paper is to identify barriers and opportunities for creating the circular business models in the EU C&DW sector. Having in mind this fact, author of the paper describes market, social, governance and regulatory failures which may limit opportunities for achieving market success in the EU C&DW sector. The presentation will...conference paper 2017
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Alexanian, S. (author), Hubert, F. (author), Buyle-Bodin, F. (author), Blanpain, O. (author)The recycled concrete aggregates (RCA) produced by the demolition of old buildings seem to be an option in order to construct new buildings and to preserve the environment by the reusing of inert materials, reducing the resort to the natural materials and the disposal in landfills. Numerous countries are multiplying studies concerning this...conference paper 2017
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Moreno-Juez, J. (author), Artoni, R. (author), Cazacliu, B. (author), Khoury, E. (author)The improvement of inline mixer measurements is imposed in a growing concrete industry employing increasingly complex manufacturing processes and materials. Improper mixing, water content estimation and fresh properties control are one of the most important concerns of concrete manufacturers. These problems have increased in recent decades due...conference paper 2017
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Ram, V.G. (author), Kalidindi, Satyanarayana (author), Nanduru, Harish Krishna (author)Construction and demolition activities generate a large quantity of C&D waste. It is estimated that almost 70% of the buildings that are expected to stand in India by 2030 are yet to be built. Hence, C&D waste generation is expected to grow larger in the coming years and managing it would play a vital role in the conservation of natural...conference paper 2017
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Cazacliu, B. (author), Artoni, R. (author), Hamard, E. (author), Cothenet, A. (author)In order to clarify the significance of Los Angeles test when being used with RCAs, three aspects were investigated: the influence of the number of revolutions, the evolution of the full particle size distribution and the distribution of mortar in the fractions after the test. The standard testing procedure for the Los Angeles index requires the...conference paper 2017
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Van Cauwenberghe, Liesbet (author), Vanden Ende, Annelies (author)The European Circular Economy Package focusses on construction and demolition and wants to identify and increase the recovery of valuable materials. A densely populated area such as Flanders, with no space for landfills and hence very high landfill taxes is driven towards recycling and reuse. Flanders is one of the leading regions when it comes...conference paper 2017
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Xiao, Jianzhuang (author)Abstract only. - This report firstly presents the current state of construction and demolition (C&D) waste generation in PR China. It is found that the composition of C&D waste in mainland China is much different from other countries, leading to some difficult on the aspect of waste concrete recycling. As a result, in China, some reclamation...conference paper 2017
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Lotfi, Somayeh (author), Rem, Peter (author), Deja, Jan (author), Mróz, Radosław (author)The C2CA concrete recycling process consists of a combination of smart demolition, gentle grinding of the crushed concrete in an autogenous mill, and a novel dry classification technology called ADR to remove the fines. The` main factors in the C2CA process which influence the properties of Recycled Aggregates or Recycled Aggregate Concrete (RAC...conference paper 2017
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Vrijders, Jeroen (author), Dooms, Bram (author), Van Itterbeeck, Petra (author)Although there has been extensive research and several demonstration projects in Belgium and abroad, the use of recycled aggregates in concrete is still limited in practice. Several barriers were identified: lack of practical experience, limiting standards and the need for specific quality assurance. The paper describes recent developments in...conference paper 2017
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Vrijders, Jeroen (author), Wastiels, Lisa (author)The use of recycled aggregates in new structural concrete is generally considered as a measure for lowering the environmental impact of concrete. Existing literature considers transport distances and the final performance of the concrete (linked to its composition) as main influencing factors to evaluate the environmental burdens or gains when...conference paper 2017
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Gastaldi, D. (author), Canonico, F. (author)Current concrete recycling consists of crushing waste concrete and use it again as aggregate for new concrete, according to specifications which are based on local regulations in different countries. Construction and demolition waste recycling is generally limited to the use of the coarser fraction as aggregate for new concrete. The quality of...conference paper 2017
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Zhao, Zengfeng (author), Courard, Luc (author), Michel, Frédéric (author), Remond, Sébastien (author), Damidot, Denis (author)Large amounts of construction and demolition wastes (C&DW) especially concrete wastes are generated annually and will increase in the future. Until now, only a small fraction of concrete wastes is re-used as recycled concrete aggregates (RCA) in the manufacture of concrete. In this paper, the feasibility of using RCA obtained from old concrete...conference paper 2017
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