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Filippo Ubertini   Professor  Other 
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Filippo Ubertini published an article in May 2018.
Research Keywords & Expertise
0 A
0 Carbon Nanotubes
0 Reinforced Concrete
0 Resistance
0 Sensors
0 Structural Health Monitoring
Top co-authors See all
Franco Cotana

67 shared publications

Department of Engineering – University of Perugia, Italy

Anna Laura Pisello

60 shared publications

Department of Engineering – University of Perugia, Via Duranti 63, 06125 Perugia, Italy

Fabio Orlandi

36 shared publications

University of Perugia

Carmelo Gentile

35 shared publications

Department ABC, Politecnico di Milano, Milan, Italy

A. Petrozzi

29 shared publications

CIRIAF - Università degli Studi di Perugia, Via G. Duranti 06125, Perugia

36
Publications
58
Reads
0
Downloads
140
Citations
Publication Record
Distribution of Articles published per year 
(2007 - 2018)
Total number of journals
published in
 
22
 
Publications See all
Article 0 Reads 0 Citations Effect of PCM on the Hydration Process of Cement-Based Mixtures: A Novel Thermo-Mechanical Investigation Claudia Fabiani, Antonella D’Alessandro, Filippo Ubertini, F... Published: 23 May 2018
Materials, doi: 10.3390/ma11060871
DOI See at publisher website
ABS Show/hide abstract
The use of Phase Change Material (PCM) for improving building indoor thermal comfort and energy saving has been largely investigated in the literature in recent years, thus confirming PCM’s capability to reduce indoor thermal fluctuation in both summer and winter conditions, according to their melting temperature and operation boundaries. Further to that, the present paper aims at investigating an innovative use of PCM for absorbing heat released by cement during its curing process, which typically contributes to micro-cracking of massive concrete elements, therefore compromising their mechanical performance during their service life. The experiments carried out in this work showed how PCM, even in small quantities (i.e., up to 1% in weight of cement) plays a non-negligible benefit in reducing differential thermal increases between core and surface and therefore mechanical stresses originating from differential thermal expansion, as demonstrated by thermal monitoring of cement-based cubes. Both PCM types analyzed in the study (with melting temperatures at 18 and 25 ∘C) were properly dispersed in the mix and were shown to be able to reduce the internal temperature of the cement paste by several degrees, i.e., around 5 ∘C. Additionally, such small amount of PCM produced a reduction of the final density of the composite and an increase of the characteristic compressive strength with respect to the plain recipe.
Article 2 Reads 1 Citation An Experimental Study on Static and Dynamic Strain Sensitivity of Embeddable Smart Concrete Sensors Doped with Carbon Na... Andrea Meoni, Antonella D’Alessandro, Austin Downey, Enrique... Published: 09 March 2018
Sensors, doi: 10.3390/s18030831
DOI See at publisher website
ABS Show/hide abstract
The availability of new self-sensing cement-based strain sensors allows the development of dense sensor networks for Structural Health Monitoring (SHM) of reinforced concrete structures. These sensors are fabricated by doping cement-matrix mterials with conductive fillers, such as Multi Walled Carbon Nanotubes (MWCNTs), and can be embedded into structural elements made of reinforced concrete prior to casting. The strain sensing principle is based on the multifunctional composites outputting a measurable change in their electrical properties when subjected to a deformation. Previous work by the authors was devoted to material fabrication, modeling and applications in SHM. In this paper, we investigate the behavior of several sensors fabricated with and without aggregates and with different MWCNT contents. The strain sensitivity of the sensors, in terms of fractional change in electrical resistivity for unit strain, as well as their linearity are investigated through experimental testing under both quasi-static and sine-sweep dynamic uni-axial compressive loadings. Moreover, the responses of the sensors when subjected to destructive compressive tests are evaluated. Overall, the presented results contribute to improving the scientific knowledge on the behavior of smart concrete sensors and to furthering their understanding for SHM applications.
Article 2 Reads 0 Citations Automated crack detection in conductive smart-concrete structures using a resistor mesh model Austin Downey, Antonella D’Alessandro, Filippo Ubertini, Sim... Published: 19 February 2018
Measurement Science and Technology, doi: 10.1088/1361-6501/aa9fb8
DOI See at publisher website
PROCEEDINGS-ARTICLE 2 Reads 0 Citations Experimental analysis on slamming reduction in rectangular liquid tanks subjected to harmonic motion Nicola Cavalagli, Chiara Biscarini, Andrea L. Facci, Filippo... Published: 01 January 2018
AIP Conference Proceedings, doi: 10.1063/1.5044009
DOI See at publisher website
Article 4 Reads 1 Citation Smart bricks for strain sensing and crack detection in masonry structures Austin Downey, Antonella D’Alessandro, Simon Laflamme, Filip... Published: 30 November 2017
Smart Materials and Structures, doi: 10.1088/1361-665x/aa98c2
DOI See at publisher website
Article 2 Reads 1 Citation Experimental wind tunnel study of a smart sensing skin for condition evaluation of a wind turbine blade Austin Downey, Simon Laflamme, Filippo Ubertini Published: 30 October 2017
Smart Materials and Structures, doi: 10.1088/1361-665x/aa9349
DOI See at publisher website
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