Construction and demolition waste in concrete: property of pre-molded parts for paving
Abstract Construction and demolition waste (CDW) production is a growing factor on a global scale and its incorrect disposal becomes an increasingly common problem in cities. It is estimated to represent, on average, 50% of the urban solid waste mass in the world. In this sense, an alternative to th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Cerâmica
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| Series: | Cerâmica |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500022&lng=en&tlng=en |
| _version_ | 1818676098934767616 |
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| author | J. T. M. Francisco A. E. de Souza S. R. Teixeira |
| author_facet | J. T. M. Francisco A. E. de Souza S. R. Teixeira |
| author_sort | J. T. M. Francisco |
| collection | DOAJ |
| description | Abstract Construction and demolition waste (CDW) production is a growing factor on a global scale and its incorrect disposal becomes an increasingly common problem in cities. It is estimated to represent, on average, 50% of the urban solid waste mass in the world. In this sense, an alternative to the destination is their reuse. In this work, the properties of interlocking concrete pieces for paving with the CDW in substitution to large aggregates were analyzed. The substitution occurred in fractions from 20 to 100 wt% of CDW in cylindrical test specimens to find the ideal substitution content, so that to prepare pre-molded concrete blocks. The piece properties obtained were analyzed according to Brazilian standards for compressive strength and water absorption. Therefore, the influence of the residue incorporation in the pieces, from the technical viewpoint, was verified. The sample that presented the best performance had a substitution of 20% of the natural aggregate by crushed CDW. |
| first_indexed | 2024-12-17T08:38:05Z |
| format | Article |
| id | doaj.art-b23e7deeb1734befab20a1c7f5ee8ad5 |
| institution | Directory Open Access Journal |
| issn | 1678-4553 |
| language | English |
| last_indexed | 2024-12-17T08:38:05Z |
| publisher | Associação Brasileira de Cerâmica |
| record_format | Article |
| series | Cerâmica |
| spelling | doaj.art-b23e7deeb1734befab20a1c7f5ee8ad52022-12-21T21:56:25ZengAssociação Brasileira de CerâmicaCerâmica1678-455365suppl 1222610.1590/0366-6913201965s12595S0366-69132019000500022Construction and demolition waste in concrete: property of pre-molded parts for pavingJ. T. M. FranciscoA. E. de SouzaS. R. TeixeiraAbstract Construction and demolition waste (CDW) production is a growing factor on a global scale and its incorrect disposal becomes an increasingly common problem in cities. It is estimated to represent, on average, 50% of the urban solid waste mass in the world. In this sense, an alternative to the destination is their reuse. In this work, the properties of interlocking concrete pieces for paving with the CDW in substitution to large aggregates were analyzed. The substitution occurred in fractions from 20 to 100 wt% of CDW in cylindrical test specimens to find the ideal substitution content, so that to prepare pre-molded concrete blocks. The piece properties obtained were analyzed according to Brazilian standards for compressive strength and water absorption. Therefore, the influence of the residue incorporation in the pieces, from the technical viewpoint, was verified. The sample that presented the best performance had a substitution of 20% of the natural aggregate by crushed CDW.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500022&lng=en&tlng=eninterlocking pavingconcreteconstruction and demolition wasteCDW |
| spellingShingle | J. T. M. Francisco A. E. de Souza S. R. Teixeira Construction and demolition waste in concrete: property of pre-molded parts for paving Cerâmica interlocking paving concrete construction and demolition waste CDW |
| title | Construction and demolition waste in concrete: property of pre-molded parts for paving |
| title_full | Construction and demolition waste in concrete: property of pre-molded parts for paving |
| title_fullStr | Construction and demolition waste in concrete: property of pre-molded parts for paving |
| title_full_unstemmed | Construction and demolition waste in concrete: property of pre-molded parts for paving |
| title_short | Construction and demolition waste in concrete: property of pre-molded parts for paving |
| title_sort | construction and demolition waste in concrete property of pre molded parts for paving |
| topic | interlocking paving concrete construction and demolition waste CDW |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500022&lng=en&tlng=en |
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