Mechanical performance of concrete with partial replacement of sand by sewage sludge ash

Detalhes bibliográficos
Autor(a) principal: Jamshidi, A.
Data de Publicação: 2011
Outros Autores: Jamshidi, M., Mehrdadi, N., Shasavandi, Arman, Pacheco-Torgal, F.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/14979
Resumo: The production of sewage sludge from waste water treatment plants is increasing all over the world. Disposal of sewage sludge is a serious environmental problem. If we think of the areas needed for sludge ash disposal, we clearly understand the importance of reusing sewage sludge ash in concrete. This paper presents results related to the replacement of sand by sewage sludge ash. The sludge was characterized for chemical composition (XRF analysis), crystalline phases (XRD analysis) and pozzolanic activity. The effects of incineration on crystal phases of dry sludge were investigated. Two (W/C) ratios (0.55 and 0.45) and three sludge percentages (5%, 10% and 20%) by cement mass were used. The mechanical performance of SSAC at different curing ages (3, 7, 28 and 90 days) was assessed by means of mechanical tests. Results show that sewage sludge ash leads to a reduction in density and mechanical strength. Results also show that concrete with 20% of sewage sludge ash and W/C=0.45 has a 28 day compressive strength of almost 30MPa.
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spelling Mechanical performance of concrete with partial replacement of sand by sewage sludge ashSewage sludge ashXRDCompressive strengthFlexural strengthThe production of sewage sludge from waste water treatment plants is increasing all over the world. Disposal of sewage sludge is a serious environmental problem. If we think of the areas needed for sludge ash disposal, we clearly understand the importance of reusing sewage sludge ash in concrete. This paper presents results related to the replacement of sand by sewage sludge ash. The sludge was characterized for chemical composition (XRF analysis), crystalline phases (XRD analysis) and pozzolanic activity. The effects of incineration on crystal phases of dry sludge were investigated. Two (W/C) ratios (0.55 and 0.45) and three sludge percentages (5%, 10% and 20%) by cement mass were used. The mechanical performance of SSAC at different curing ages (3, 7, 28 and 90 days) was assessed by means of mechanical tests. Results show that sewage sludge ash leads to a reduction in density and mechanical strength. Results also show that concrete with 20% of sewage sludge ash and W/C=0.45 has a 28 day compressive strength of almost 30MPa.Universidade do MinhoJamshidi, A.Jamshidi, M.Mehrdadi, N.Shasavandi, ArmanPacheco-Torgal, F.2011-04-192011-04-19T00:00:00Zconference paperinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/14979enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-11T04:15:39Zoai:repositorium.sdum.uminho.pt:1822/14979Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T04:15:39Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Mechanical performance of concrete with partial replacement of sand by sewage sludge ash
title Mechanical performance of concrete with partial replacement of sand by sewage sludge ash
spellingShingle Mechanical performance of concrete with partial replacement of sand by sewage sludge ash
Jamshidi, A.
Sewage sludge ash
XRD
Compressive strength
Flexural strength
title_short Mechanical performance of concrete with partial replacement of sand by sewage sludge ash
title_full Mechanical performance of concrete with partial replacement of sand by sewage sludge ash
title_fullStr Mechanical performance of concrete with partial replacement of sand by sewage sludge ash
title_full_unstemmed Mechanical performance of concrete with partial replacement of sand by sewage sludge ash
title_sort Mechanical performance of concrete with partial replacement of sand by sewage sludge ash
author Jamshidi, A.
author_facet Jamshidi, A.
Jamshidi, M.
Mehrdadi, N.
Shasavandi, Arman
Pacheco-Torgal, F.
author_role author
author2 Jamshidi, M.
Mehrdadi, N.
Shasavandi, Arman
Pacheco-Torgal, F.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Jamshidi, A.
Jamshidi, M.
Mehrdadi, N.
Shasavandi, Arman
Pacheco-Torgal, F.
dc.subject.por.fl_str_mv Sewage sludge ash
XRD
Compressive strength
Flexural strength
topic Sewage sludge ash
XRD
Compressive strength
Flexural strength
description The production of sewage sludge from waste water treatment plants is increasing all over the world. Disposal of sewage sludge is a serious environmental problem. If we think of the areas needed for sludge ash disposal, we clearly understand the importance of reusing sewage sludge ash in concrete. This paper presents results related to the replacement of sand by sewage sludge ash. The sludge was characterized for chemical composition (XRF analysis), crystalline phases (XRD analysis) and pozzolanic activity. The effects of incineration on crystal phases of dry sludge were investigated. Two (W/C) ratios (0.55 and 0.45) and three sludge percentages (5%, 10% and 20%) by cement mass were used. The mechanical performance of SSAC at different curing ages (3, 7, 28 and 90 days) was assessed by means of mechanical tests. Results show that sewage sludge ash leads to a reduction in density and mechanical strength. Results also show that concrete with 20% of sewage sludge ash and W/C=0.45 has a 28 day compressive strength of almost 30MPa.
publishDate 2011
dc.date.none.fl_str_mv 2011-04-19
2011-04-19T00:00:00Z
dc.type.driver.fl_str_mv conference paper
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/14979
url http://hdl.handle.net/1822/14979
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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