1,720,972 research outputs found
L'innovazione di prodotto per la transizione ecologica: Il riciclo del laterizio e del vetro
Full text linkIn the thematic environment of conscious use and material resource recycling, the Department of Architecture of the Roma Tre University is currently conducting a research line focused on environmental product innovation. This line consists of two application studies involving manufacturing companies in the construction sector. Both types of research address the issue of additives in the mix design of bricks and concrete, respectively, to achieve better-performing products. The results led to the prototyping of two products: a brick, made from waste replacing a fraction of clay with a mixture of bentonite sludge and metal residues, and a concrete screed mix, made from construction and demolition glass waste replacing natural aggregates
Il riciclaggio come processo creativo di innovazione Foreword. Recycling as a creative process of innovation
No full textInnovative housing policy tools: impact indicators in the NRRP Urban Regeneration Programmes
Full text linkThe topic of indicators as measurers of the effectiveness of urban and housing transformations strongly re-emerge because of the performance approach the funding of the National Recovery and Resilience Plan (NRRP) is based on. Within the NRRP specific programmes, the issue of performance measurability of interventions was managed with the application of different indicators and application methods. The research group had the opportunity to work on the construction of a system of indicators for a national urban regeneration programme, financed within the NRRP. This paper describes the research aimed at the definition of the indicators for evaluating the design proposals applied to the NRRP financed program called PINQuA (Innovative Programme for Housing Quality). The proposed system of indicators proved useful to promote an objective reading of the interventions and to encourage, in the design proposals application, the response to housing quality criteria aimed, among other issues, at improving the cultural condition of the contexts
Minimum Environmental Criteria, Estimation of Costs and Regional Prices: Preliminary Considerations
No full textSeveral European Directives over the last 15 years addressed the issue of environmental sustainability towards building design process and considering the public sector this led to a regulatory transposition of some requirements in the procurement phase. The European requests in this sense are implemented in Italy also with the introduction of the Minimum Environmental Criteria (MEC) which must be preliminarily set in the feasibility study and guaranteed in the definitive and executive design phases. After a brief overview and introductions about MEC the paper proposes an evaluation based on the regional price lists where the cost estimation is linked to public works. First of all, the evaluation (rapid, intuitive, and replicable) focuses on the analysis of the regional price lists verifying the presence of MEC materials or processes and highlighting the quantity with respect to the total of the price list items. A second comparative evaluation focuses on the comparison between two types of thermal insulators (considering three national geographical areas such as north, center and south) by relating two aspects: a) the price differential between the two materials (MEC versus traditional ones); b) the relative price differential relating to the processing and installation of the same materials made to vary in quantitative terms due to the same performance response to the three different climatic zone
Il vetro piano: potenziale inespresso di un rifiuto da costruzione e demolizione
No full textThis contribution is developed within the Ph.D. course conducted by the author
at the Department of Architecture of the University of Roma Tre. The
research has as its focus the development of new mix designs through the
use of recycled glass, as a secondary raw material, to replace classic fine
aggregates of stone origin.
The measures implemented on a global scale, starting from the Sustainable
Development Goals (SDGs) of the 2030 Agenda and the European Green
deal, have highlighted how much the construction sector, throughout its
supply chain, contributes significant percentages in harmful gas emissions.
In particular, recent studies on the state of conservation of Europe’s building
stock have shown how it is one of the most energy-intensive sectors of
the entire industry, in relation to the years of construction.
These aspects will necessarily condition the strategic choices that will have
to be made in this sector, with particular reference to interventions aimed
at the energy efficiency of the building heritage of the 20th century.
The results that, as a consequence of these actions, will lead this heritage
to a lower demand for energy and a lower emission of harmful gases will,
at the same time, contribute to an increase in Construction and Demolition
waste. This contribution, given these predictions, will evaluate, with particular
reference to glass as a secondary raw material from windows and
doors, the possibility of its reuse for new mix designs in a circular economy
perspective
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Decarbonizzazione dei manufatti edilizi: metodologie per la valutazione della Whole Life Carbon e focus sulla fase di fine vita
No full textIn recent decades, the dependence of human activities on fossil fuels and linear economic models (produce, use, and throw away) have caused the emission of vast quantities of GreenHouse Gas (GHG) into the atmosphere, causing the rise of the earth’s temperature. In response to climate change, world governments have signed several pacts to reduce GHG emissions and limit temperature rise to 2050 below 1.5°C. In this context, the European Union has shown to be sensitive to environmental issues and a promoter of a network of plans to tackle global warming. Among the main areas of intervention, the construction sector is predominant in pursuing decarbon- isation by 2050.
Being able to manage and control the emissions in the life cycle of a build- ing becomes a pivotal element in reaching decarbonisation’s objectives. It is, therefore, necessary to develop methods and tools for measuring all stages of the life cycle of buildings, from construction to final disposal. The paper deals with some results of the research project “Tool for Decarbon- isation”, promoted by the Green Building Council Italy in collaboration with the Department of Architecture and Design of the Politecnico di Torino. The research aims to develop an accounting methodology for the Embodied Carbon in all the stages of a building’s life cycle.
The research outcomes contribute to assessing the building’s Whole Life Carbon. Finally, the paper focuses on the final stages of the building’s life cycle, highlighting the complexity of accounting Embodied Carbon in the End-of-Life stages and the different influence on reducing emissions caused by Construction and Demolition waste
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