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  1. Book ; Online: Recycled Materials in Civil and Environmental Engineering

    Petrella, Andrea / Notarnicola, Michele

    2022  

    Keywords Technology: general issues ; Environmental science, engineering & technology ; cement conglomerates ; end-of-life tire rubber ; perlite ; thermal insulation ; mechanical strength ; vegetable fiber ; fiber-reinforced mortar ; cement and cement-lime mortars ; sustainability ; render ; recycled aggregate concrete ; silica fume ; mixing process ; compressive strength ; water treatment ; nanomaterials ; adsorbents ; clay-polymers nanocomposites ; waste paper fiber ; fiber-cement plaster mortar ; physical and mechanical performance ; limestone ; granulated blast furnace slag ; adhesive strength ; industrial waste ; renewable resource ; reuse ; civil engineering material ; regulatory promotion ; composite materials ; carbon fiber-reinforced composites ; recycling techniques ; chemical recycling ; subcritical fluids ; supercritical fluids ; supercritical alcohols ; biochar ; modification ; sodium ; sorbent ; saline water ; soil ; bolt connectors ; fibre-reinforced concrete ; steel-concrete-steel sandwich ; shear behaviour ; ultimate load ; recycled materials ; environmental engineering ; water reuse ; oil removal ; cement mortar ; wheat straw ; acoustic absorption ; secondary raw materials ; phosphorescent composites ; thermal ; mechanical ; rheology ; sorption ; kinetics ; peat ; cenosphere ; oil sorption ; Weber-Morris ; diffusion model ; granules ; biocomposite ; scrap tire recycled steel fiber ; soil-cement blocks ; hydrochar ; digestate ; endocrine disruptor ; estrogen ; biosorbent ; adsorption ; water decontamination ; soil remediation ; recycled brick aggregate ; pervious concrete ; image processing ; pore feature ; recycled concrete aggregate ; green concrete ; machine learning ; decision tree ; gradient boosting ; bagging regressor ; n/a
    Language 0|e
    Size 1 electronic resource (352 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021621614
    ISBN 9783036552347 ; 3036552340
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book ; Online: Innovative Materials and Processes for Removal of Biopersistent Pollutants

    Petrella, Andrea / Race, Marco / Spasiano, Danilo

    2023  

    Keywords Technology: general issues ; Environmental science, engineering & technology ; photo-catalysis ; TiO2 ; azo dye ; kinetic study ; hydraulic and hydrodynamic parameters ; water caltrop husk ; CO2 activation ; mesoporous activated carbon ; methylene blue ; adsorptive removal ; kinetic modeling ; internal microelectrolysis ; Fe-Cu material ; phenol ; wastewater treatment ; coking wastewater ; TiO2 nanoparticles ; photocatalysis ; landfill leachate ; aged waste reactors ; environmental regulation ; governance synergy ; industrial green technology progress ; mediating effect ; digestate ; endocrine-disrupting chemical ; metribuzin ; boscalid ; bisphenol A ; octylphenol ; xenoestrogen ; sorption kinetics ; sorption isotherm ; desorption ; silane coupling agents ; biochar ; hydrophobic modification ; landfill cover ; ANOVA ; heavy metals ; second-degree function ; soybean biomass ; waste ; Artificial Neural Networks ; biosorption ; Differential Evolution ; optimization ; soybean waste ; sudden water pollution events ; digital emergency plan ; emergency response ; emergency plan management ; knowledge visualization ; decision support system ; n/a
    Language English
    Size 1 electronic resource (204 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel
    Document type Book ; Online
    Note English
    HBZ-ID HT030649984
    ISBN 9783036589442 ; 3036589449
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  3. Book ; Online: Novel Bioderived Composites from Wastes

    Petrella, Andrea / Race, Marco / Spasiano, Danilo

    2020  

    Keywords History of engineering & technology ; Radioactive soil waste ; Gd2Ti2O7 pyrochlore ; SHS ; CeO2 ; Immobilization ; cementitious grout ; green grout ; cement ; slag substitution ; valorization ; circular economy ; cellulose aerogel ; oil absorbent ; cellulose ; white bamboo fibril ; water pollution ; natural rubber ; nanosilica ; mechanical property ; fertilizer plant ; hexafluorosilicic acid ; waste water ; cement composites ; recycled waste porous glass ; end-of-life tyre rubber ; safe production ; thermal insulation ; mechanical resistance ; render ; cement and cement-lime reinforced mortars ; natural fiber ; sheep's wool ; sustainability ; chitosan film ; emerging pollutants ; ketoprofen ; food waste ; adsorption ; recycle ; recycled expanded polystyrene ; cement mortars ; eggshell ; Direct Blue 78 ; kinetics ; isotherms ; pulsed light ; fiber reinforced ; cementless composites ; microscopic property ; co-fired fly ash ; green materials ; biochar ; wheat straw ; sorbent ; cobalt ; copper ; soil ; n/a
    Size 1 electronic resource (182 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel, Switzerland
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021046911
    ISBN 9783039431113 ; 3039431110
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  4. Article ; Online: Distant but connected? Smart Welfare in Socio-educational Services in the Time of COVID-19 ; Distanti ma connessi? Lo smart welfare nei servizi socio-educativi ai tempi del Coronavirus

    Petrella, Andrea

    Encyclopaideia; Vol 24, No; 57-73 ; 1825-8670 ; 1590-492X

    2020  Volume 57

    Abstract: In the face of the Coronavirus emergency and subsequent restrictive measures, social and educational services too had to reorganise and deal with the challenges related to social distancing and telework. Therefore, services have elaborated alternative ... ...

    Abstract In the face of the Coronavirus emergency and subsequent restrictive measures, social and educational services too had to reorganise and deal with the challenges related to social distancing and telework. Therefore, services have elaborated alternative strategies that, thanks to the use of new technologies, allowed the most fragile citizens and families to benefit from support and helping relationships. The article analyses some experiences collected by social workers in the framework of two national programmes (P.I.P.P.I. and Guaranteed Minimum Income) addressed to vulnerable families, and tends to define the paradigm of smart welfare in the fields of social care and to highlight strengths and weaknesses of different local practices. Despite some home-care interventions have been promptly converted into online services, aspects related to the use and accessibility of telecommunications and to the possibility to guarantee adequate care plans seem still to be an open question.

    A fronte dell’emergenza Coronavirus e delle successive misure restrittive, anche i servizi sociali ed educativi hanno dovuto riorganizzarsi e affrontare le sfide poste dal distanziamento sociale e dal lavoro a distanza. Pertanto, sono state attivate strategie alternative che, grazie all’utilizzo delle nuove tecnologie, hanno permesso alle fasce più fragili della società di beneficiare di sostegni e di mantenere viva la relazione d’aiuto. Analizzando le esperienze degli operatori sociali nell’ambito di due programmi nazionali (P.I.P.P.I. e Reddito di Cittadinanza) rivolti a nuclei familiari in situazione di vulnerabilità, l’articolo intende proporre una possibile definizione di smart welfare applicata ai servizi alla persona e mettere in luce i punti di forza e di debolezza delle differenziate pratiche osservabili sul territorio. Nonostante alcuni interventi educativi siano stati immediatamente convertiti attraverso modalità telematiche, restano molte questioni aperte relative sia all’utilizzo e all’accessibilità delle tecnologie, sia alla possibilità di garantire adeguati percorsi di accompagnamento.
    Keywords Smart Welfare ; Social Services ; Vulnerability ; Coronavirus ; Helping Relationships ; Servizi sociali ; Vulnerabilità ; Relazioni d’aiuto ; covid19
    Language Italian
    Publishing date 2020-08-26
    Publisher Dipartimento di Scienze per la Qualità della Vita
    Publishing country it
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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  5. Article: Recycled Materials in Civil and Environmental Engineering.

    Petrella, Andrea / Notarnicola, Michele

    Materials (Basel, Switzerland)

    2022  Volume 15, Issue 11

    Abstract: Waste represents a huge reserve of resources that, after appropriate management, can guarantee a sustainable and continuous supply of materials and energy over the years [ ... ]. ...

    Abstract Waste represents a huge reserve of resources that, after appropriate management, can guarantee a sustainable and continuous supply of materials and energy over the years [...].
    Language English
    Publishing date 2022-06-02
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma15113955
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Lightweight Cement Conglomerates Based on End-of-Life Tire Rubber: Effect of the Grain Size, Dosage and Addition of Perlite on the Physical and Mechanical Properties.

    Petrella, Andrea / Notarnicola, Michele

    Materials (Basel, Switzerland)

    2021  Volume 14, Issue 1

    Abstract: Lightweight cement mortars containing end-of-life tire rubber (TR) as aggregate were prepared and characterized by rheological, thermal, mechanical, microstructural, and wetting tests. The mixtures were obtained after total replacement of the ... ...

    Abstract Lightweight cement mortars containing end-of-life tire rubber (TR) as aggregate were prepared and characterized by rheological, thermal, mechanical, microstructural, and wetting tests. The mixtures were obtained after total replacement of the conventional sand aggregate with untreated TR with different grain sizes (0-2 mm and 2-4 mm) and distributions (25%, 32%, and 40% by weight). The mortars showed lower thermal conductivities (≈90%) with respect to the sand reference due to the differences in the conductivities of the two phases associated with the low density of the aggregates and, to a minor extent, to the lack of adhesion of tire to the cement paste (evidenced by microstructural detection). In this respect, a decrease of the thermal conductivities was observed with the increase of the TR weight percentage together with a decrease of fluidity of the fresh mixture and a decrease of the mechanical strengths. The addition of expanded perlite (P, 0-1 mm grain size) to the mixture allowed us to obtain mortars with an improvement of the mechanical strengths and negligible modification of the thermal properties. Moreover, in this case, a decrease of the thermal conductivities was observed with the increase of the P/TR dosage together with a decrease of fluidity and of the mechanical strengths. TR mortars showed discrete cracks after failure without separation of the two parts of the specimens, and similar results were observed in the case of the perlite/TR samples thanks to the rubber particles bridging the crack faces. The super-elastic properties of the specimens were also observed in the impact compression tests in which the best performances of the tire and P/TR composites were evidenced by a deep groove before complete failure. Moreover, these mortars showed very low water penetration through the surface and also through the bulk of the samples thanks to the hydrophobic nature of the end-of-life aggregate, which makes these environmentally sustainable materials suitable for indoor and outdoor elements.
    Language English
    Publishing date 2021-01-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma14010225
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Environmental Sustainable Cement Mortars Based on Polyethylene Terephthalate from Recycling Operations.

    Todaro, Francesco / Petrella, Andrea / Santomasi, Giusy / De Gisi, Sabino / Notarnicola, Michele

    Materials (Basel, Switzerland)

    2023  Volume 16, Issue 5

    Abstract: The building and construction industry is a key sector behind the ecological transition in that it is one of the main responsible factors in the consumption of natural resources. Thus, in line with circular economy, the use of waste aggregates in mortars ...

    Abstract The building and construction industry is a key sector behind the ecological transition in that it is one of the main responsible factors in the consumption of natural resources. Thus, in line with circular economy, the use of waste aggregates in mortars is a possible solution to increase the sustainability of cement materials. In the present paper, polyethylene terephthalate (PET) from bottle scraps (without chemical pretreatment) was used as aggregate in cement mortars to replace conventional sand aggregate (20%, 50% and 80% by weight). The fresh and hardened properties of the innovative mixtures proposed were evaluated through a multiscale physical-mechanical investigation. The main results of this study show the feasibility of the reuse of PET waste aggregates as substitutes for natural aggregates in mortars. The mixtures with bare PET resulted in less fluid than the specimens with sand; this was ascribed to the higher volume of the recycled aggregates with respect to sand. Moreover, PET mortars showed a high tensile strength and energy absorption capacity (with Rf = 1.9 ÷ 3.3 MPa, Rc = 6 ÷ 13 MPa); instead, sand samples were characterized by a brittle rupture. The lightweight specimens showed a thermal insulation increase ranging 65-84% with respect to the reference; the best results were obtained with 800 g of PET aggregate, characterized by a decrease in conductivity of approximately 86% concerning the control. The properties of these environmentally sustainable composite materials may be suitable for non-structural insulating artifacts.
    Language English
    Publishing date 2023-03-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma16052111
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Effect of the Chemical and Mechanical Recycling of PET on the Thermal and Mechanical Response of Mortars and Premixed Screeds.

    Lerna, Michela / Foti, Dora / Petrella, Andrea / Sabbà, Maria Francesca / Mansour, Sulyman

    Materials (Basel, Switzerland)

    2023  Volume 16, Issue 8

    Abstract: In this paper, recycled polyethylene terephthalate (PET) was used to produce eco-innovative engineering materials with optimized performance, minimizing the environmental impact deriving from plastic consumption activity and limiting the continuous ... ...

    Abstract In this paper, recycled polyethylene terephthalate (PET) was used to produce eco-innovative engineering materials with optimized performance, minimizing the environmental impact deriving from plastic consumption activity and limiting the continuous consumption of raw materials. The recycled PET obtained from waste bottles, commonly used to improve the ductility of concrete, has been used with a different weight percentage as plastic aggregate in the replacement of sand in cement mortars and as fibers added to premixed screeds. In detail, the effect of PET treatment (chemical or mechanical) on the thermal performance was evaluated. Non-destructive physical tests were conducted to determine the thermal conductivity of the investigated building materials. The performed tests showed that chemically depolymerized PET aggregate and recycled PET fibers derived from plastic wastes can reduce the heat conduction capacity of the cementitious materials with limited reduction in compressive strength. The results of the experimental campaign have made it possible to evaluate the influence of the recycled material on the physical and mechanical properties and its feasibility in non-structural applications.
    Language English
    Publishing date 2023-04-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma16083155
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Novel Bioderived Composites from Wastes.

    Petrella, Andrea / Race, Marco / Spasiano, Danilo

    Materials (Basel, Switzerland)

    2020  Volume 13, Issue 11

    Abstract: The recycling and reuse of solid wastes can be considered important challenges for civil and environmental applications in the frame of a more sustainable model of development and the consumption of new resources and energy [ ... ]. ...

    Abstract The recycling and reuse of solid wastes can be considered important challenges for civil and environmental applications in the frame of a more sustainable model of development and the consumption of new resources and energy [...].
    Language English
    Publishing date 2020-06-05
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma13112571
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Recycled Expanded Polystyrene as Lightweight Aggregate for Environmentally Sustainable Cement Conglomerates.

    Petrella, Andrea / Di Mundo, Rosa / Notarnicola, Michele

    Materials (Basel, Switzerland)

    2020  Volume 13, Issue 4

    Abstract: In the present work the rheological, thermo-mechanical, microstructural, and wetting characteristics of cement mortars with recycled expanded polystyrene (EPS) were analyzed. The samples were prepared after partial/total replacement of the conventional ... ...

    Abstract In the present work the rheological, thermo-mechanical, microstructural, and wetting characteristics of cement mortars with recycled expanded polystyrene (EPS) were analyzed. The samples were prepared after partial/total replacement of the conventional sand aggregate with EPS having different grain size and size distribution. Lightness and thermal insulation were relevant features for all the bare EPS composites, despite the mechanical strengths. Specifically, EPS based mortars were characterized by higher thermal insulation with respect to the sand reference due to the lower specific mass of the specimens mainly associated with the low density of the aggregates and also to the spaces at the EPS/cement paste interfaces. Interesting results in terms of low thermal conductivity and high mechanical resistances were obtained in the case of sand-EPS mixtures although characterized by only 50% in volume of the organic aggregate. Moreover, sand-based mortars showed hydrophilicity (low WCA) and high water penetration, whereas the presence of EPS in the cement composites led to a reduction of the absorption of water especially on the bulk of the composites. Specifically, mortars with EPS in the 2-4 mm and 4-6 mm bead size range showed the best results in term of hydrophobicity (high WCA) and no water penetration in the inner surface, due to low surface energy of the organic aggregate together with a good particle distribution. This was indicative of cohesion between the ligand and the polystyrene as observed in the microstructural detections. Such a property is likely to be correlated to the observed good workability of this type of mortar and to its low tendency to segregation compared to the other EPS containing specimens. These lightweight thermo-insulating composites can be considered environmentally sustainable materials because they are prepared with no pre-treated secondary raw materials and can be used for indoor applications.
    Language English
    Publishing date 2020-02-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma13040988
    Database MEDical Literature Analysis and Retrieval System OnLINE

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