Impact of the mixer and time of mixing on the properties of industrialized mortar
Industrialized rendering mortars usually employ additives in their formulations, most commonly air-entraining agents. In order to ensure quality and production scale, they are prepared in manufacturing units with precise control of the formulation and dosage of raw materials and additives. Despite t...
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ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
2009
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ojs-article-94722010-02-03T15:54:57Z Impact of the mixer and time of mixing on the properties of industrialized mortar Impacto do tipo de misturador e do tempo de mistura nas propriedades de argamassas industrializadas Romano, Roberto Cesar de Oliveira Schreurs, Harry Silva, Fernanda Belizario da Cardoso, Fabio Alonso Barros, Mercia Maria Semensato Bottura de John, Vanderley Moacyr Pileggi, Rafeal Giuliano Mistura. Argamassa. Ar incorporado. Resistência mecânica. Módulo de elasticidade. Industrialized rendering mortars usually employ additives in their formulations, most commonly air-entraining agents. In order to ensure quality and production scale, they are prepared in manufacturing units with precise control of the formulation and dosage of raw materials and additives. Despite the control in the production of this material in an industrial environment, variations in the mixing conditions may affect the level of air incorporation. On construction sites, mortars are usually either processed manually or with the use of mixing equipment. This study evaluates the impact of the type of equipment and mixing time on air incorporation in industrialized mortars and the effect on their properties after hardening. The results indicate that the incorporation of air results from the adjustment between the mixing equipment and the mortar formulation. Different sensibilities of mortars to the type of equipment have been identified. That fact indicates that an alternative to reduce variability on the level of air incorporation in building sites depends on the development of formulations with minimal sensibility to the mixing process. Argamassas industrializadas anidras usualmente empregam aditivos em suas formulações, sendo muito comum o uso de incorporadores de ar. Apesar do rigor da produção deste material em ambiente fabril, variações nas condições de preparo em obra podem afetar o teor de ar no revestimento. Usualmente, as argamassas são processadas manualmente em obras ou com o auxílio de equipamentos de mistura. Dessa forma, neste trabalho foi avaliado o impacto do tipo de equipamento e do tempo de mistura na incorporação de ar de argamassas industrializadas e o efeito nas propriedades após o endurecimento. Os resultados indicam que a incorporação de ar decorre da adequação entre o equipamento de mistura e a formulação da argamassa, sendo identificada diferença de sensibilidade das argamassas ao tipo de equipamento. Tal fato permite inferir que a alternativa para reduzir a variabilidade do teor de ar em obra depende do desenvolvimento de formulações com mínima sensibilidade ao processo de mistura. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído Capes e Consitra 2009-11-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.ufrgs.br/ambienteconstruido/article/view/9472 Ambiente Construído; v. 9, n. 4 (2009); 109-118 Ambiente Construído; v. 9, n. 4 (2009); 109-118 Ambiente Construído; v. 9, n. 4 (2009); 109-118 1678-8621 1415-8876 por https://seer.ufrgs.br/ambienteconstruido/article/view/9472/7055 Direitos autorais 2016 Ambiente Construído https://creativecommons.org/licenses/by/4.0 |
| institution |
Universidade Federal do Rio Grande do Sul |
| collection |
OJS |
| language |
por |
| format |
Online |
| author |
Romano, Roberto Cesar de Oliveira Schreurs, Harry Silva, Fernanda Belizario da Cardoso, Fabio Alonso Barros, Mercia Maria Semensato Bottura de John, Vanderley Moacyr Pileggi, Rafeal Giuliano |
| spellingShingle |
Romano, Roberto Cesar de Oliveira Schreurs, Harry Silva, Fernanda Belizario da Cardoso, Fabio Alonso Barros, Mercia Maria Semensato Bottura de John, Vanderley Moacyr Pileggi, Rafeal Giuliano Impact of the mixer and time of mixing on the properties of industrialized mortar |
| author_facet |
Romano, Roberto Cesar de Oliveira Schreurs, Harry Silva, Fernanda Belizario da Cardoso, Fabio Alonso Barros, Mercia Maria Semensato Bottura de John, Vanderley Moacyr Pileggi, Rafeal Giuliano |
| author_sort |
Romano, Roberto Cesar de Oliveira |
| title |
Impact of the mixer and time of mixing on the properties of industrialized mortar |
| title_short |
Impact of the mixer and time of mixing on the properties of industrialized mortar |
| title_full |
Impact of the mixer and time of mixing on the properties of industrialized mortar |
| title_fullStr |
Impact of the mixer and time of mixing on the properties of industrialized mortar |
| title_full_unstemmed |
Impact of the mixer and time of mixing on the properties of industrialized mortar |
| title_sort |
impact of the mixer and time of mixing on the properties of industrialized mortar |
| description |
Industrialized rendering mortars usually employ additives in their formulations, most commonly air-entraining agents. In order to ensure quality and production scale, they are prepared in manufacturing units with precise control of the formulation and dosage of raw materials and additives. Despite the control in the production of this material in an industrial environment, variations in the mixing conditions may affect the level of air incorporation. On construction sites, mortars are usually either processed manually or with the use of mixing equipment. This study evaluates the impact of the type of equipment and mixing time on air incorporation in industrialized mortars and the effect on their properties after hardening. The results indicate that the incorporation of air results from the adjustment between the mixing equipment and the mortar formulation. Different sensibilities of mortars to the type of equipment have been identified. That fact indicates that an alternative to reduce variability on the level of air incorporation in building sites depends on the development of formulations with minimal sensibility to the mixing process. |
| publisher |
ANTAC - Associação Nacional de Tecnologia do Ambiente Construído |
| publishDate |
2009 |
| url |
https://seer.ufrgs.br/ambienteconstruido/article/view/9472 |
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