Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2018 |
| Outros Autores: | , , , , , |
| Idioma: | eng |
| Título da fonte: | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| Texto Completo: | http://hdl.handle.net/10362/52500 |
Resumo: | a STSM Grant from the COST Action CA15202. and co-financed by the ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER –007265; POCI-01-0145-FEDER-007728). |
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oai:run.unl.pt:10362/52500 |
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RCAP |
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Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
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https://opendoar.ac.uk/repository/7160 |
| spelling |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproductsBiotreatmentBioproductWater absorptionConstruction and demolition wasteRecycled concretea STSM Grant from the COST Action CA15202. and co-financed by the ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER –007265; POCI-01-0145-FEDER-007728).Cracks form in all concrete constructions shortening the life of concrete elements, particularly in exposed concrete. They provide a path for transport of moisture, chlorides, and various other deleterious substances. The aim of this study was to assess the protection and consolidation effect of eco-friendly healing biotreatments on water absorption of conventional and recycled concrete, with 50% substitution of natural coarse aggregate by CDW aggregate. Concrete were treated with bioproducts obtained using waste biomass from a microbial mixed culture process for polyhydroxyalkanoates production. Results showed that the reference samples, with application of tap water, presented an increase in water drop permeability, being the absorption time shorter than in the control (untreated) samples. The biotreatment with the non-sonicated bioproduct increased significantly the water absorption time, more evident in conventional concrete samples than in recycled ones. In the case of the sonicated bioproducts, the behaviour was similar for both types of concrete specimens, but the healing effect was higher. When the biotreatment was performed with three applications, the healing effect was not so effective. This observation may be associated with the formation of a hydrophobic film of organic material from the bioproduct, which detached from the concrete surface after outdoors exposure.RILEM Publications SARLDEC - Departamento de Engenharia CivilUCIBIO - Applied Molecular Biosciences UnitDQ - Departamento de QuímicaLAQV@REQUIMTERUNGarcia-Gonzalez, JuliaFreches, AndréLemos, P. C.Vaz, PedroPereira, Alice S.Juan-Valdes, AndresFaria, Paulina2018-11-22T23:06:39Z2018-102018-10-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersion6application/pdfhttp://hdl.handle.net/10362/52500eng978-2-35158-203-9PURE: 6372757https://doi.org/10.5281/zenodo.1405563info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T17:35:41Zoai:run.unl.pt:10362/52500Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:06:50.939052Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse |
| dc.title.none.fl_str_mv |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts |
| title |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts |
| spellingShingle |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts Garcia-Gonzalez, Julia Biotreatment Bioproduct Water absorption Construction and demolition waste Recycled concrete |
| title_short |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts |
| title_full |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts |
| title_fullStr |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts |
| title_full_unstemmed |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts |
| title_sort |
Biotreated conventional concrete and CDW-concrete by use of microbial mixed cultures bioproducts |
| author |
Garcia-Gonzalez, Julia |
| author_facet |
Garcia-Gonzalez, Julia Freches, André Lemos, P. C. Vaz, Pedro Pereira, Alice S. Juan-Valdes, Andres Faria, Paulina |
| author_role |
author |
| author2 |
Freches, André Lemos, P. C. Vaz, Pedro Pereira, Alice S. Juan-Valdes, Andres Faria, Paulina |
| author2_role |
author author author author author author |
| dc.contributor.none.fl_str_mv |
DEC - Departamento de Engenharia Civil UCIBIO - Applied Molecular Biosciences Unit DQ - Departamento de Química LAQV@REQUIMTE RUN |
| dc.contributor.author.fl_str_mv |
Garcia-Gonzalez, Julia Freches, André Lemos, P. C. Vaz, Pedro Pereira, Alice S. Juan-Valdes, Andres Faria, Paulina |
| dc.subject.por.fl_str_mv |
Biotreatment Bioproduct Water absorption Construction and demolition waste Recycled concrete |
| topic |
Biotreatment Bioproduct Water absorption Construction and demolition waste Recycled concrete |
| description |
a STSM Grant from the COST Action CA15202. and co-financed by the ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER –007265; POCI-01-0145-FEDER-007728). |
| publishDate |
2018 |
| dc.date.none.fl_str_mv |
2018-11-22T23:06:39Z 2018-10 2018-10-01T00:00:00Z |
| dc.type.driver.fl_str_mv |
conference object |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/52500 |
| url |
http://hdl.handle.net/10362/52500 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
978-2-35158-203-9 PURE: 6372757 https://doi.org/10.5281/zenodo.1405563 |
| dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
6 application/pdf |
| dc.publisher.none.fl_str_mv |
RILEM Publications SARL |
| publisher.none.fl_str_mv |
RILEM Publications SARL |
| dc.source.none.fl_str_mv |
reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia instacron:RCAAP |
| instname_str |
FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia |
| instacron_str |
RCAAP |
| institution |
RCAAP |
| reponame_str |
Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| collection |
Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| repository.name.fl_str_mv |
Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia |
| repository.mail.fl_str_mv |
info@rcaap.pt |
| _version_ |
1833596442186350592 |