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Dr. Alan Piemonti
University of Brescia - Department of Civil, Environmental, Architectural Engineering and Mathematics

Basic Info

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Research Keywords & Expertise

0 Concrete
0 Material Flow Analysis
0 Sustainability
0 circular economy
0 Steel slag

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Short Biography

Civil Engineer and PhD student in Civil and Environmental Engineering at the University of Brescia, Italy. My research topic concerns the valorization of industrial waste, in particular steel and foundry slags, as new building materials. In addition to this, I had the opportunity to work with other types of materials (e.g. macro-synthetic fiber-reinforced concrete in prestressed hollow-core slabs).

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Journal article
Published: 08 January 2021 in Sustainability
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In the two last decades, world production of pig iron and steel has undergone a significant increase. In 2018, 1252.87 and 1806.46 million tons of pig iron and steel, respectively, were produced as compared to the 575.78 and 809.94 million tons of 2000. Consequently, the amount of the different types of slags deriving from these production processes has also increased considerably. In relation to the principles of sustainability and circular economy, the available literature suggests several possible reuses for these slags (bituminous conglomerates, hydraulic engineering, metallurgy, fertilizers, etc.). This paper aims to provide an overview of the iron and steel slags production and their reuse in concrete (for example as replacement of cement, fine or coarse aggregates). The characteristics of slags are analyzed in terms of chemical, physical, and mechanical properties. Mechanical and durability tests (both from material and structures point of view) carried out in the different studies and research are shown as well. Particular attention was devoted to electric arc furnace slags (EAF) since they are the most produced in Italy. Based on this deep literature review, the gaps that still require further studies have been identified and discussed.

ACS Style

Alan Piemonti; Antonio Conforti; Luca Cominoli; Sabrina Sorlini; Antonella Luciano; Giovanni Plizzari. Use of Iron and Steel Slags in Concrete: State of the Art and Future Perspectives. Sustainability 2021, 13, 556 .

AMA Style

Alan Piemonti, Antonio Conforti, Luca Cominoli, Sabrina Sorlini, Antonella Luciano, Giovanni Plizzari. Use of Iron and Steel Slags in Concrete: State of the Art and Future Perspectives. Sustainability. 2021; 13 (2):556.

Chicago/Turabian Style

Alan Piemonti; Antonio Conforti; Luca Cominoli; Sabrina Sorlini; Antonella Luciano; Giovanni Plizzari. 2021. "Use of Iron and Steel Slags in Concrete: State of the Art and Future Perspectives." Sustainability 13, no. 2: 556.

Journal article
Published: 21 January 2020 in Engineering Structures
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Experimental and numerical research studies demonstrated that the addition of fibres in correct proportions, enhances the shear behaviour of Reinforced Concrete (RC) elements, allowing to totally or partially replace the conventional web reinforcement. However, despite of this increase of knowledge about Fibre Reinforced Concrete (FRC), there is still a gap in the applicability of fibres as a shear reinforcement in certain prestressed structural elements where the use of conventional transverse reinforcement is difficult due to their manufacturing process, e.g. extruded elements in dry concrete. In this context, the present paper evaluates the possibility of enhancing the shear strength of Hollow-Core Slabs (HCS) by using Polypropylene Fibre Reinforced Concrete (PFRC). HCS can be critical in shear at their end zones, since these zones are disturbed regions (already stressed in tension by splitting forces) in which the beneficial effects of the prestressing actions on the shear strength are not active yet. Five full-scale HCS (42 cm high, 120 cm wide and 600 cm long) were tested under shear loading (1 in RC and 4 in PFRC). Two tests were performed on each slab varying the shear-span-to-effective depth ratio (a/d = 2.8 according to EN1168 and a/d = 3.5). Results show that macro-synthetic fibres are able to improve the shear strength of hollow-core slabs of about 25%; furthermore tests according to EN1168 are more affected by arch actions as compared to a/d = 3.5. Finally, the comparison between experimental results and predictions of four international codes (Eurocode 2, ACI 318-14, Model Code 2010 and EN1168), highlighted the need of improving the actual shear formulations.

ACS Style

Antonio Conforti; Francisco Ortiz-Navas; Alan Piemonti; Giovanni A. Plizzari. Enhancing the shear strength of hollow-core slabs by using polypropylene fibres. Engineering Structures 2020, 207, 110172 .

AMA Style

Antonio Conforti, Francisco Ortiz-Navas, Alan Piemonti, Giovanni A. Plizzari. Enhancing the shear strength of hollow-core slabs by using polypropylene fibres. Engineering Structures. 2020; 207 ():110172.

Chicago/Turabian Style

Antonio Conforti; Francisco Ortiz-Navas; Alan Piemonti; Giovanni A. Plizzari. 2020. "Enhancing the shear strength of hollow-core slabs by using polypropylene fibres." Engineering Structures 207, no. : 110172.