Searched for: subject:"process"
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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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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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Le Guen, Lauredan (author), Ferro, Gerard (author), Cazacliu, Bogdan (author)
The waste management is a pregnant problematic in the European continent and in France too. The new paradigm called circular economy aims to be driver for the waste valorization. This objective is particularly applied in the civil engineering, the first generator of CDW (Construction and Demolition Waste) in France. In this context, except the...
conference paper 2017
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Mueller, Anette (author), Liebezeit, Steffen (author), Leydolph, Barbara (author), Palzer, Ulrich (author)
At present, heterogeneous and fine-grained masonry rubble can only be recycled at very low level. To overcome this limitation, the material was employed as feedstock for the production of lightweight aggregates in a thermal process similar to that used in the manufacture of expanded clay and expanded slate. To that end, the fundamental...
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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Martens, Isabel (author), Ulsen, Carina (author), Kahn, Henrique (author), Landmann, Mirko (author), Mueller, Anette (author)
The concept of circular economy envisages that the highest utility and value of a material can be achieved through proper management along its all life cycle. Therefore reducing waste, through increased reuse and recycling, is a major driver to close the loop. Within this framework, construction and demolition waste, which constitutes up to 30%...
conference paper 2017
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Le Masurier, J. (author)
Geotechnical engineering designs are often predefined before construction commences, in an attempt to eliminate uncertainty. Such predefined design can lead to poor value, either due to waste of resources from over design, when opportunities are missed for optimising the design during construction, or due to the delay and additional cost of...
conference paper 2015
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Sutoh, A. (author), Maruyama, O. (author), Kanakiyo, H.T. (author), Sato, T. (author)
This paper proposes the tunnel lining deterioration model which is based upon actual inspection data in order to carry out strategic maintenance and to rationalize life cycle cost analysis for tunnel structures. The evaluation value of deteriorating tunnel structures is a non-stationary stochastic process, and reliability problems of such...
conference paper 2015
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Su, H.Z. (author), Wen, Z. (author), Yang, M. (author)
The elastic-plastic mechanical behaviour is a typical characteristic of rock mass. The load action will bring on the local destruction, large deformation, even whole failure of rock mass with the discontinuous mediums (e.g. joint, crack and fault). It is a coupling process of the continuous deformation and the discontinuous deformation. The...
conference paper 2015
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Silberberger, J. (author), Strebel, I. (author), Tränkle, P. (author)
While research on architectural competitions can be considered a well-established field nowadays, research on the transition between the competition procedure and the subsequent project phase remains fragmentary. The paper at hand aims at addressing this gap. Standing in the tradition of actor-network theory (Callon 1986; Law and John 2004;...
conference paper 2014
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Andersson, J.E. (author)
Sweden is entering the ageing society. On a national level, and in a cyclic process with a time lap of 30 to 40 years, three architecture competitions have been realized during the 20th century in order to renew spatial thinking concerning housing for dependent and frail persons in need of daily care and caring, in the following termed...
conference paper 2014
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(author)
A so-called “Design Process Investigation toolbox” (DPI toolbox), has been developed. It is a set of computational tools that simulate spatial-structural design processes. Its objectives are to study spatial-structural design processes and to support the involved actors. Two case-studies are presented which demonstrate how to: (1) study the...
conference paper 2013
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Trento, A. (author), Fioravanti, A. (author)
Quality, according to Pirsig’s universal statements, does not belong to the object itself, nor to the subject itself, but to both and to their interactions. In architecture it is terribly true as we have a Building Object and Users that interact with it.The problem we approach here, renouncing at the impossible task of modelling the actor’s ...
conference paper 2013
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Coimbra, E. (author), Romao, L. (author)
This study was accomplished in the context of a broader research to be developed in an ongoing PhD program in architecture. The purpose of this study is to give a perspective of the research progress and to present a shape grammar simplification that will be improved to assist the rehabilitation design process of the bourgeois house of Oporto...
conference paper 2013
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El Ahmar, S. (author), Fioravanti, A. (author), Hanafi, M. (author)
Biomimicry, where nature is emulated as a basis for design, is a growing area of research in the fields of architecture and engineering. The widespread and practical application of biomimicry as a design approach remains however largely unrealized. A growing body of international research identifies various obstacles to the employment of...
conference paper 2013
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Ianni, M. (author), Sanchez de Leon, M. (author)
In current architectural practice some important changes are taking place because of the development of numerous Building Performance Simulations (BPS) tools to support design decisions during early phases of the design process. Many difficulties still persist, however, not necessarily due to the limitations of the available technology, but to...
conference paper 2013
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Pedraza, E.T. (author), Kunze, A. (author), Roccasalva, G. (author), Schmitt, G. (author)
This paper presents an approach for microclimate aware densification of urban areas by creating best practices for an in situ application for block-size urban developments. The discussed procedure generates and evaluates urban block types according to microclimate criteria by integrating climate and comfort parameters in the design process of...
conference paper 2013
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Ergin, F.G. (author), Watz, B.B. (author), Erglis, K. (author), Cebers, A. (author)
Mixing is often a challenge in small scales and substantial research effort is focused on designing high performance micromixers. Active micromixers use various forces to enhance mixing efficiency. Among these, magnetic forces are often preferred as they are non-contact and do not require manufacturing of small moving parts in the microchannel....
conference paper 2013
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Specht, S. (author), Bluhm, J. (author), Schröder, J. (author)
Self healing materials are becoming more and more important for the construction of mechanical components due to their ability to detect and heal failures as well as cracks autonomously. Especially in polymers and polymer-composites, where the component can loose a high rate of strength and durability due to micro cracks, those damages are...
conference paper 2013
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Sordo, F. (author), Michaud, V. (author)
Supramolecular polymers gained a great success in the last years as self-healing materials and many different systems have been developed. These polymers combine the advantages of intrinsic and autonomic self-healing systems. In 2010, Montarnal et al. developed a class of epoxy-based hybrid networks that combine both chemical and supramolecular...
conference paper 2013
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