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Preliminary Evaluation of Cement Mortars Containing Waste Silt Optimized with the Design of Experiments Method

Every year, up to 3 billion tons of non-renewable natural aggregates are demanded by the construction sector and approximately 623 million tons of waste (mining and quarrying) was produced in 2018. Global efforts have been made to reduce the number of virgin aggregates used for construction and infr...

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Autores principales: Solouki, Abbas, Viscomi, Giovanni, Tataranni, Piergiorgio, Sangiorgi, Cesare
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7865585/
https://www.ncbi.nlm.nih.gov/pubmed/33499243
http://dx.doi.org/10.3390/ma14030528
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author Solouki, Abbas
Viscomi, Giovanni
Tataranni, Piergiorgio
Sangiorgi, Cesare
author_facet Solouki, Abbas
Viscomi, Giovanni
Tataranni, Piergiorgio
Sangiorgi, Cesare
author_sort Solouki, Abbas
collection PubMed
description Every year, up to 3 billion tons of non-renewable natural aggregates are demanded by the construction sector and approximately 623 million tons of waste (mining and quarrying) was produced in 2018. Global efforts have been made to reduce the number of virgin aggregates used for construction and infrastructure sectors. According to the revised waste framework directive in Europe, recycling at least 70% of construction and demolition waste materials by 2020 was obligatory for all member states. Nonetheless, quarries must work at full capacity to keep up with the demands, which has made quarry/mining waste management an important aspect during the past decades. Amongst the various recycling methods, quarry waste can be included in cement mortar mixtures. Thus, the current research focuses on producing cement mortars by partially substituting natural sand with the waste silt obtained from the limestone aggregate production in S.A.P.A.B.A. s.r.l. (Italy). A Design of Experiments (DOE) method is proposed to define the optimum mix design, aiming to include waste silt in cement mortar mixtures without affecting the final performance. Three cement mortar beams were produced and tested for each of the 49 randomized mixtures defined by the DOE method. The obtained results validate the design approach and suggest the possibility of substituting up to 20% of natural sand with waste silt in cement mortar mixtures.
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spelling pubmed-78655852021-02-07 Preliminary Evaluation of Cement Mortars Containing Waste Silt Optimized with the Design of Experiments Method Solouki, Abbas Viscomi, Giovanni Tataranni, Piergiorgio Sangiorgi, Cesare Materials (Basel) Article Every year, up to 3 billion tons of non-renewable natural aggregates are demanded by the construction sector and approximately 623 million tons of waste (mining and quarrying) was produced in 2018. Global efforts have been made to reduce the number of virgin aggregates used for construction and infrastructure sectors. According to the revised waste framework directive in Europe, recycling at least 70% of construction and demolition waste materials by 2020 was obligatory for all member states. Nonetheless, quarries must work at full capacity to keep up with the demands, which has made quarry/mining waste management an important aspect during the past decades. Amongst the various recycling methods, quarry waste can be included in cement mortar mixtures. Thus, the current research focuses on producing cement mortars by partially substituting natural sand with the waste silt obtained from the limestone aggregate production in S.A.P.A.B.A. s.r.l. (Italy). A Design of Experiments (DOE) method is proposed to define the optimum mix design, aiming to include waste silt in cement mortar mixtures without affecting the final performance. Three cement mortar beams were produced and tested for each of the 49 randomized mixtures defined by the DOE method. The obtained results validate the design approach and suggest the possibility of substituting up to 20% of natural sand with waste silt in cement mortar mixtures. MDPI 2021-01-22 /pmc/articles/PMC7865585/ /pubmed/33499243 http://dx.doi.org/10.3390/ma14030528 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Solouki, Abbas
Viscomi, Giovanni
Tataranni, Piergiorgio
Sangiorgi, Cesare
Preliminary Evaluation of Cement Mortars Containing Waste Silt Optimized with the Design of Experiments Method
title Preliminary Evaluation of Cement Mortars Containing Waste Silt Optimized with the Design of Experiments Method
title_full Preliminary Evaluation of Cement Mortars Containing Waste Silt Optimized with the Design of Experiments Method
title_fullStr Preliminary Evaluation of Cement Mortars Containing Waste Silt Optimized with the Design of Experiments Method
title_full_unstemmed Preliminary Evaluation of Cement Mortars Containing Waste Silt Optimized with the Design of Experiments Method
title_short Preliminary Evaluation of Cement Mortars Containing Waste Silt Optimized with the Design of Experiments Method
title_sort preliminary evaluation of cement mortars containing waste silt optimized with the design of experiments method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7865585/
https://www.ncbi.nlm.nih.gov/pubmed/33499243
http://dx.doi.org/10.3390/ma14030528
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