Recycling-Oriented Characterization of Post-Earthquake Building Waste by Different Sensing Techniques.

Oriana Trotta, Giuseppe Bonifazi, Giuseppe Capobianco, Silvia Serranti

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Article in Journal of imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

4 authors.

Oriana TrottaDepartment of Chemical Engineering, Materials & Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy.

Giuseppe BonifaziDepartment of Chemical Engineering, Materials & Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy.ORCID 0000-0001-6935-2686

Giuseppe CapobiancoDepartment of Chemical Engineering, Materials & Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy.ORCID 0000-0003-1914-7275

Silvia SerrantiDepartment of Chemical Engineering, Materials & Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy.ORCID 0000-0003-2435-5212

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this paper, a methodological approach based on hyperspectral imaging (HSI) working in the short-wave infrared range (1000-2500 nm) was developed and applied for the recycling-oriented characterization of post-earthquake building waste. In more detail, the presence of residual cement mortar on the surface of tile fragments that can be recycled as aggregates was estimated. The acquired hyperspectral images were analyzed by applying different chemometric methods: principal component analysis (PCA) for data exploration and partial least-squares-discriminant analysis (PLS-DA) to build classification models. Micro-X-ray fluorescence (micro-XRF) maps were also obtained on the same samples in order to validate the HSI classification results. Results showed that it is possible to identify cement mortar on the surface of the recycled tile, evaluating its degree of liberation. The recognition is automatic and non-destructive and can be applied for recycling-oriented purposes at recycling plants.

Indexed as

cement mortarconstruction and demolition wastedegree of liberationhyperspectral imagingmicro-X-ray fluorescencepost-earthquake building wastequality controlrecycled masonry aggregatetile

Identifiers

PMID34564108

DOI10.3390/jimaging7090182

PMCPMC8466861

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