Reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength: a life cycle approach
Abstract The building industry is one of the greatest environmental impact causers in the planet. Cement is the second most used material in the world and the consumption of concrete ranges between 20 to 30 Gt yearly. This demand for the materials ten ds to increase for the next 100 years. The incr...
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| Format: | Article |
| Language: | English |
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Instituto Brasileiro do Concreto (IBRACON)
2022-11-01
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| Series: | Revista IBRACON de Estruturas e Materiais |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000600203&tlng=en |
| _version_ | 1798018614896361472 |
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| author | Bruno Athaíde Bacelar Thalita Cardoso Dias Péter Ludvig |
| author_facet | Bruno Athaíde Bacelar Thalita Cardoso Dias Péter Ludvig |
| author_sort | Bruno Athaíde Bacelar |
| collection | DOAJ |
| description | Abstract The building industry is one of the greatest environmental impact causers in the planet. Cement is the second most used material in the world and the consumption of concrete ranges between 20 to 30 Gt yearly. This demand for the materials ten ds to increase for the next 100 years. The increase of concrete strength to reduce the material consumption is one of the options proposed in literature to reduce the environmental impacts in building industry. However, few studies have been carried about the actual advantages of this strategy in building production. In this paper, a 15-storey reinforced concrete building was designed with three different concrete grades for its columns: 30 MPa, 40 MPa and 50 MPa. The results for the volume of concrete and the amount of reinforcing steel to produce the columns were used to perform a cradle-to-gate life cycle assessment (LCA) to determine the alternative with less environmental impacts in the production stage. Results indicate an advantage to adopt higher strength concretes in columns to reduce environmental impacts and the consumption of materials. Direct effects of higher strength in concretes made possible to reduce the consumption of concrete by 15%. There was also a significant reduction caused by indirect effects of higher strengths in concrete, with the reducing of steel consumption up to 22%. With the combination of the direct and indirect effects of higher compressive strengths, it was possible to reduce the environmental impacts of reinforced concrete in all categories studied in the LCA. |
| first_indexed | 2024-04-11T16:27:09Z |
| format | Article |
| id | doaj.art-9cd7878dc26f451387e02d3b98fee9e3 |
| institution | Directory Open Access Journal |
| issn | 1983-4195 |
| language | English |
| last_indexed | 2024-04-11T16:27:09Z |
| publishDate | 2022-11-01 |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj.art-9cd7878dc26f451387e02d3b98fee9e32022-12-22T04:14:08ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952022-11-0115610.1590/s1983-41952022000600010Reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength: a life cycle approachBruno Athaíde Bacelarhttps://orcid.org/0000-0003-2139-7134Thalita Cardoso Diashttps://orcid.org/0000-0002-3396-2666Péter Ludvighttps://orcid.org/0000-0002-1997-3414 Abstract The building industry is one of the greatest environmental impact causers in the planet. Cement is the second most used material in the world and the consumption of concrete ranges between 20 to 30 Gt yearly. This demand for the materials ten ds to increase for the next 100 years. The increase of concrete strength to reduce the material consumption is one of the options proposed in literature to reduce the environmental impacts in building industry. However, few studies have been carried about the actual advantages of this strategy in building production. In this paper, a 15-storey reinforced concrete building was designed with three different concrete grades for its columns: 30 MPa, 40 MPa and 50 MPa. The results for the volume of concrete and the amount of reinforcing steel to produce the columns were used to perform a cradle-to-gate life cycle assessment (LCA) to determine the alternative with less environmental impacts in the production stage. Results indicate an advantage to adopt higher strength concretes in columns to reduce environmental impacts and the consumption of materials. Direct effects of higher strength in concretes made possible to reduce the consumption of concrete by 15%. There was also a significant reduction caused by indirect effects of higher strengths in concrete, with the reducing of steel consumption up to 22%. With the combination of the direct and indirect effects of higher compressive strengths, it was possible to reduce the environmental impacts of reinforced concrete in all categories studied in the LCA.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000600203&tlng=enreinforced concretelife cycle assessmentsustainabilityconcrete columns |
| spellingShingle | Bruno Athaíde Bacelar Thalita Cardoso Dias Péter Ludvig Reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength: a life cycle approach Revista IBRACON de Estruturas e Materiais reinforced concrete life cycle assessment sustainability concrete columns |
| title | Reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength: a life cycle approach |
| title_full | Reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength: a life cycle approach |
| title_fullStr | Reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength: a life cycle approach |
| title_full_unstemmed | Reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength: a life cycle approach |
| title_short | Reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength: a life cycle approach |
| title_sort | reduction of the environmental impacts of reinforced concrete columns by increasing the compressive strength a life cycle approach |
| topic | reinforced concrete life cycle assessment sustainability concrete columns |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000600203&tlng=en |
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