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Macroporous Mortars for Laying and Coating

dc.contributoren-US
dc.creatorMendes, Júlia Castro; Laboratório de Materiais de Construção Civil, Escola de Minas, Universidade Federal de Ouro Preto – Campus Morro do Cruzeiro Ouro Preto - MG, 35400-000 (Brasil)
dc.creatorPinto, Paloma Bárbara; Departamento de Engenharia Civil, Faculdade Santa Rita (FaSaR) KM 2 da Estrada Real, Conselheiro Lafaiete - MG, 36400-000 (Brasil)
dc.creatorda Silva, Henrique Emanuel Américo; Laboratório de Materiais de Construção Civil, Escola de Minas, Universidade Federal de Ouro Preto – Campus Morro do Cruzeiro Ouro Preto – MG, 35400-000 (Brasil)
dc.creatorBarreto, Rodrigo Rony; Laboratório de Materiais de Construção Civil, Escola de Minas, Universidade Federal de Ouro Preto – Campus Morro do Cruzeiro Ouro Preto – MG, 35400-000 (Brasil)
dc.creatorMoro, Taís Kuster; Laboratório de Materiais de Construção Civil, Escola de Minas, Universidade Federal de Ouro Preto – Campus Morro do Cruzeiro Ouro Preto – MG, 35400-000 (Brasil)
dc.creatorFiorotti Peixoto, Ricardo André; Laboratório de Materiais de Construção Civil, Escola de Minas, Universidade Federal de Ouro Preto – Campus Morro do Cruzeiro Ouro Preto – MG, 35400-000 (Brasil)
dc.date2019-04-25
dc.identifierhttp://revistadelaconstruccion.uc.cl/index.php/rdlc/article/view/1415
dc.descriptionDOI: 10.7764/RDLC.18.1.29The envelope of a building is responsible for its physical protection against external agents, including humidity and temperature. Thus, the present work seeks to evaluate the effect of air entraining admixtures (AEA) in mortars for laying and coating to improve their physical and thermal performances. The AEA generates macropores, interrupting the system of canaliculi that allows the capillary absorption of water. The AEA used is based on biodegradable surfactant molecules of Linear Alkyl Benzene Sodium Sulfonate. Results compare physical tests (water absorption, capillary coefficient, specific gravity, and mechanical strength), and thermal evaluation (thermal conductivity and specific heat) from two mortars mixtures with varying levels of AEA. Scanning electron microscopy (SEM) of the pore system were also analysed. All mixtures studied presented higher workability and cohesion, reduced thermal conductivity, decreased specific heat, and a reduction in the effects of water absorption, capillary elevation and specific gravity (density). In this sense, the durability of mortars to humidity effect is potentially improved, along with several other properties. Therefore, this work seeks to contribute to the quality of built environments, as well as to promote the technological development of cement-based composites.  en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPONTIFICIA UNIVERSIDAD CATOLICA DE CHILEen-US
dc.relationhttp://revistadelaconstruccion.uc.cl/index.php/rdlc/article/view/1415/369
dc.sourceRevista de la Construcción. Journal of Construction; Vol 18, No 1 (2019): Revista de la Construcción. Journal of Construction; 29-41en-US
dc.source0718-915X
dc.source0717-7925
dc.subjecten-US
dc.subjectair-entraining admixture; mortars; macroporous cement-based composites; capillarity; built environmenten-US
dc.titleMacroporous Mortars for Laying and Coatingen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typePeer-reviewed Articleen-US


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