This paper introduces a methodological framework to integrate circularity in architectural curricula and the building blocks that led to its conceptualisation. The first block (Part A) examines how complexity has affected learning and architectural education, in particular. The paper departs from the notion that knowledge produces further uncertainty in conditions of critical complexity. Moreover, the highest levels of complexity require the least scientific of approaches. It then examines the main challenges resulting from this shift: one is that learning identifies with individuals’ ability to make informed decisions and is now conceptualised as actionable knowledge. Second to that, education should opt for a pedagogy that can support learning through decision making. Architectural education, in particular, should be able to foster a new type of professionalism, where individuals assume accountability for their design decisions that extends beyond the aesthetic realm. But what can drive curricula to become more responsive to the current environmental, social, and political realities? The second block (Part B) looks into the issue of circularity. It examines its relevance to architectural education for its potential to function both as an operational scheme as well as a value system. Furthermore, being a concept in the making, circularity can benefit from academic research but can also support a pedagogy that focuses on helping students learn how to learn. The proposed methodological framework (Part C) builds on these two blocks and on the faculty’s research on circularity to develop a scheme of what constitutes content for teaching circularity, how the goals for integrating it into the curricula can be formulated, and what type of pedagogy is suited to support the integration. ... Read more

Als gevolg van een wereldwijd groeiende bevolking en de behoefte aan comfortabele en gezonde binnenomgevingen, ligt er een enorme bouwuitdaging in het verschiet met de ontwikkeling van nieuwe bouwprojecten en de noodzaak om de bestaande gebouwenvoorraad te upgraden. Om te zorgen voor een toekomstbestendige, duurzame economie voor toekomstige generaties is het terugdringen van het gebruik van primaire hulpbronnen essentieel. Er is dan ook nood aan een verschuiving van lineair naar circulair ingerichte systemen. Circulariteit is gericht op het vernauwen, vertragen en/of sluiten van materiaal-, water- en energiestromen (Bocken et al. 2015). ... Read more

In recent years, implementing a circular economy in cities (or “circular cities”) has been proposed by policy makers as a potential solution for achieving sustainability. One strategy for circular cities is to reintroduce manufacturing into urban areas (or “urban manufacturing”), allowing resource flows to be localized at the city scale. However, the extent to which urban manufacturing contributes to circular cities is unclear in existing literature. The purpose of this paper is therefore twofold: to understand whether urban manufacturing could contribute to the circular economy, and to understand the drivers and barriers to circular urban manufacturing. By reviewing existing literature and interviewing experts, we identified the caveats for the contribution of urban manufacturing to circular cities, as well as the spatial, social, and material-related drivers and barriers for circular urban manufacturing. ... Read more

Fundamental changes in the societal use of biophysical resources are required for a sustainable transformation. Current (urban) metabolism research traces flows of energy and materials and products to capture resource use along value chains from resource extraction to production and consumption and the discharge of wastes and emissions. However, spatial relation, local carrying capacity and qualitative characteristics of the urban landscape are only featured in very few studies, even if they are becoming crucial elements towards future sustainable development. Simultaneously, spatial studies tend to neglect the dimension of processes of flows and the generated stocks that influence the construction and performance of space. Big data and GIS technologies have the potential to leverage the integration between the two fields of knowledge. Therefore, the article explores the development of an innovative method - Activity-based Spatial Material Flow Analysis -that integrates qualitative and quantitative flow specifications in material content and geographical space, starting from the analysis of waste flows relative to the Amsterdam Metropolitan Area (NL). Lastly, the article reflects on the results of the application of the AS-MFA method, namely a series of flow maps. Each flow map is a significant data-based network representation of a part of the urban metabolism within the AMA in a specific period of time. ... Read more

The on-line exhibition presents the results of the Horizon20 Project REPAiR in virtual exhibition rooms. Check-out this next generation experience to learn all about circular economy contexts and solutions: ... Read more

Circular Building gained traction during the past decade in the Netherlands. Circular Building (CB) is rooted in concepts such as Circular Economy and Cradle-to-Cradle®, accentuating closing and continuing of material flows to establish sustainable resource cycles. CB implies that buildings and building components are designed to retain value, tailored for specific service lives and responsive to changing needs. This way, wasting of buildings and building components can be reduced or avoided. This paper revolves around circular materialisation and operation of building infill, such as furniture, partitions, and kitchens. The short to medium-long material cycles usually associated with those components provide potential benefits for circular resource management. The paper comprises a study into materialisation and operational performance of the Niaga ECOR Panel (NEP): an innovative cellulose board product. NEP aims to offer a healthy and circular alternative for conventional linear board products and value chains, adhering to multiple Sustainable Development Goals, notably: SDG11 (Sustainable Cities and Communities) and SDG12 (Responsible Production and Consumption). The study follows Circ-Flex assessment guidelines, anticipating operational performance through the supply, use, and reverse-supply chain. The findings indicate that the intrinsic properties of the NEP can enable circular infill value models, provided that networked actors remain aligned. ... Read more

Departing from two problem statements, one concerning circularity in the built environment and one concerning flexibility in the built environment, this dissertation sets out to answer two main research questions: – In an Open Building division of support and infill, to what extent can the infill contribute to sustainable circular material & product flows? – Which qualitative and quantitative criteria and preconditions are central to integrating the notions of user health & well-being, circularity, and flexibility in infill configurations? In view on these research questions, this dissertation revolves around multiple topics and disciplines, addressing material properties, material flows, product design, and user benefits, relating to a specific building component: non-bearing partitioning. The research follows a mixed-method approach, primarily qualitatively driven and supported by quantitative data and tools. Literature studies, workshops and expert consultations are applied throughout the trajectory to derive, test and adjust criteria, guidelines and design concepts. The dissertation is structured around four research chapters (each set-up as a separate academic article), preceded by a general introduction and background sketch, and followed by an overarching evaluation of the findings. ... Read more

Circular building has gained considerable attention in the Netherlands during the past decade. It is rooted in concepts such as circular economy (CE) and Cradle-to-Cradle (C2C®), accentuating the closing and coupling of material loops to establish effective and efficient resource flows. Moreover, those concepts adhere to a systemic, holistic worldview, incorporating multiple flows and values. Although social aspects, such as health, wellbeing, and social inclusiveness, are generally part of circular building principles, specific benefits for end-users are not. This paper explores the synergistic potential of circular and flexible (Circ-Flex) criteria from the perspective of enhanced control and convenience for residents. The hypothesis is that without integrating the user domain, replicability of circular building concepts on a larger residential scale cannot be done in a truly sustainable manner. The paper is structured around two objectives: (1) further identifying the relationship between flexible and circular building; and (2) exploring the impact of circular, flexible building concepts and practices for the users of multi-family housing, specifically regarding interior partitioning. The research follows a mixed-mode methodology comprising of literature review, case study, expert consultations and a quick-scan assessment. Eleven Circ-Flex criteria are explored, grouped in three categories: flexibility capacity, circularity capacity, and user capacity. These criteria are applied to two partitioning variants, whilst exploring the performance regarding material circulation and user benefits ... Read more

This article sheds light on the materialization and operation of residential partitioning wall components in relation to circular and flexible performance. The hypothesis is twofold: (1) A stronger integration of materialization and operation aspects is indispensable in establishing sustainable value-models, and (2) recent innovations, concerning the reversibility of material connections, will help disrupting the status-quo in that respect. Attention is drawn to renewable natural fibre composites (NFC), reversible adhesives, and biodegradable insulation materials. After a background sketch regarding the notion of time, change, and material circularity in design and planning, the housing challenge in the Amsterdam metropolitan area (AMA, the Netherlands) is described. Next, a design conceptualization stage is introduced, informed by two methods and tools in particular: Circ-Flex assessment, and activity-based spatial material flow analysis. Results of the conceptualization stage are presented regarding materialization and operation, culminating in Circ-Flex partitioning components, more specifically: Side panels and insulation. It was found that NFC can tackle current issues relating, most prominently, to circularity performance. Associated modifications in the value-chain occur, above all, in raw material sourcing, manufacturing, reutilization logistics, and data-sharing. The outcomes are valid for multiple building components other than indoor partitioning, such as kitchens and furniture, but also insulation—and interior side-sheeting—of walls and roofs in energy-renovations. ... Read more

This paper addresses the connection between circular building design and residential health and well-being. The general research objective is to determine assessment criteria for the performance of indoor partitioning products in a circular model. The overarching aim is to establish a more integrated and inclusive approach to the transition from linear to circular built environments. This ties in with recent calls for a more comprehensive evidence-base to better inform the policy debate, in the light of interrelated Sustainable Development Goals. The paper emphasises the operational level, looking closer at the actual performance of circular economy implementation, providing more grip on performance indicators of infill components in circular applications, specifically partition walls. Next to partitioning one can think of other components in the infill domain, such as kitchens, bathrooms and mechanical, electrical, plumbing installations. After a brief background sketch, a literature review is reported regarding indoor environmental quality and indoor air quality in general and the linkage with circular and flexible building (products) in particular. Next, an analysis is made of three assessment schemes that address the operational level. Subsequently, several criteria are synthesized and tested. It was shown that the assessment schemes have overlapping and complementary features that, in unison, provide a solid basis for an integrated assessment of circularity potential and health impact of infill products. The test-case helped to pinpoint generic, as well as case-specific, learning points. The interface between product performance and building performance over time remains a grey zone, insufficiently covered by current criteria. More stringent coordination efforts are essential to safeguard circularity potential and healthy living environments pre-use, post-use and not least in-use. ... Read more

Deliverable 3.3 of Work Package 3 concerns an integrated analysis of the two pilot case studies within the REPAiR project, Amsterdam and Naples, from the vantage point of waste production and processing, and the transition to circular societies. It comprises spatial, social and material flow analyses of the two pilot cases, whilst testing an innovative methodology that was introduced and explained in Deliverable 3.1 [D3.1, AKA the Handbook, Geldermans et al., 2017]. The report addresses additions and clarifications to the methodology presented in Deliverable 3.1. After an update on the basis of technical insights and the work developed in practice within the peri-urban living labs (PULL) workshops carried out so far, an improved classification of Wastescapes is presented. Furthermore, a complete process model to map Wastescapes is provided. A smaller scale of the 'sample' area has been introduced to allow a better interaction with the local stakeholders, deepening the context and cutting into the intermediate scale of the ‘focus-area’. Moreover, the notion of Enabling Contexts is applied to rationalise the links between spatial analysis and eco-innovation solutions (WP5). With regard to the Material Flow Analysis, new insights on data collection and processing are addressed, providing more grip on how to successfully conduct such an MFA. The lion’s share of the report is allocated to presenting the results. For both cases, a rudimentary spatial and socio-economic analysis on a national level precedes a detailed regional analysis: for the Netherlands, this concerns the Amsterdam Metropolitan Area, and for Italy the Campania Region and the Metropolitan region of Naples. Embedded in this spatial-social context, the material flow analysis follows six Activity-based Spatial MFA (as introduced in D3.1) steps to pinpoint and analyse waste related challenges and activities. The report finishes with a reflection on the methodology and results. This reflection focuses on four topics in particular: physico-geographical aspects and waste-sensitivity, Waste(scape) dynamics in space & time, modelling of material flows & data intensity, and the relevance of Enabling Contexts, whilst anticipating the follow up cases as well as a wider field of application. ... Read more

dealing with the linkages between sociocultural features and social sensitiveness about general environmental issues, and particularly about waste and resource management. Task 3.3 has a multilevel scope: secondary sociocultural inquiries are focusing on national level specificities, while the primer sociocultural stage of the research and the socioeconomic investigation is done on a local level. The representation and process models developed in WP3 have strong ties with WP4, regarding sustainability impact assessment and evaluation models, and with WP5 concerning eco-innovative solutions and change strategies. Moreover, the models are used as input to the GDSE (WP2) and inform – and are informed by – WP6 with regard to decision models. These interrelations accentuate theimportance of common agreements regarding e.g. delineations, data sourcing and processing. Such issues are dealt with in this handbook, whilst underlining the necessity for continuing alignment between work packages of the REPAiR project. ... Read more

In onze traditioneel lineaire economie worden materialen gewonnen, verwerkt in
producten en uiteindelijk gestort op stortplaatsen of verbrand in verbrandingsovens. Om de beschikking te kunnen blijven houden over materialen is een paradigmaverschuiving richting circulaire modellen onvermijdelijk. De bouwsector is voor een groot deel verantwoordelijk voor het totale materiaalgebruik. Ter illustratie: op Europees niveau wordt gemiddeld 37,5% van al het gebruikte hout toegepast in de bouw, 21% van al het staal, 65,5% van het glas en 75% van het beton [1]. Recycling is redelijk ingeburgerd in de bouw, maar vaak gaat dat gepaard met een aanzienlijk kwaliteitsverlies. Kennis, vaardigheden en technieken om hoogwaardige circulaire stromen te bewerkstelligen staan nog in de kinderschoenen. ... Read more

Circular building concepts, as proposed within e.g. Circular Economy and Cradle-to-Cradle frameworks, imply radical changes for the construction sector. Cradle-to-Cradle® in particular has put forward the idea of buildings as material banks, radically altering the way material flows need to be managed. The notion of material banks (temporary storage of materials that comprise the building assemblies) sheds new light on the value of building materials and products, and how to maintain and restore this. The basics are straightforward: high quality, pure material use and anticipated material regeneration routes. The implications for the supply and value chain, however, are significant, and research in this direction has only recently taken off. To smoothen the path to implementation, circular building principles may be combined with Design-for-Adaptability (DfA) guidelines, as developed over the last decades. DfA guidelines are rooted in enhanced resilience of the built environment on the one hand, and the associated constructive implications on the other. Synergy between the concepts of circularity and adaptability, with regard to the Dutch context, is at the heart of this paper. The main research question is: what are prerequisites for an effective performance of materials, products, services and buildings in the case circularity is a leading ambition? The research is structured around four interdisciplinary expert workshops in which knowledge and experiences were shared, discussed, tested and redefined, leading to a set of preconditions for circular building material and product flows. A key finding is that circularity-values emerge at the intersection of specific intrinsic properties (material and product characteristics) and relational properties (building design and use characteristics), whilst combining multiple parameters. In separation, neither intrinsic nor relational properties have decisive significance with regard to circularity; it is on the crossing where fulfillment is created. This paper finishes by discussing the findings from the perspectives of lifespan, monitoring, ownership, and standardization. ... Read more