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Previous issue date: 2015-12-15 / Neste trabalho, avalia-se o desempenho de argamassas ? base de cimento Portland para rejuntamento de placas cer?micas tipo II com adi??o de p? de borracha de pneus inserv?veis. Apresenta-se uma revis?o bibliogr?fica sobre o tema (SEGRE, 1999; MENEGUINI, 2003; FERREIRA, 2009; GUIMAR?ES, 1997; FIORITO, 1994), em que se faz a ancoragem te?rico-metodol?gica de todo o processo investigativo. O universo analisado compreende uma amostra de argamassa para rejuntamento de placas cer?micas tipo II convencional (amostra de refer?ncia) e de mais cinco amostras de argamassas para rejuntamento de placas cer?micas tipo II, compostas com adi??o de p? de borracha de pneu inserv?veis, nas respectivas propor??es de 4, 8, 12, 16 e 20 %.
Essas amostras de argamassas foram submetidas aos ensaios de determina??o do ?ndice de consist?ncia (NBR 13276:2005), reten??o de ?gua (NBR 14992 Anexo B:2003), permeabilidade aos 240 minutos (NBR 14992 Anexo G:2003), Absor??o de ?gua por imers?o (NBR 9781:2013), resist?ncia ? compress?o (NBR 14992 Anexo D:2003), resist?ncia ? tra??o na flex?o (NBR 13279:2005), resist?ncia de ader?ncia ? tra??o (NBR 14081 Parte 4:2012) e densidade de massa no estado endurecido (NBR 13280:2005). Constatou-se, a partir das an?lises dos resultados obtidos nos ensaios, a seguinte situa??o: a argamassa de refer?ncia utilizada atendeu ?s exig?ncias estabelecidas nas normas de especifica??es correspondentes para apenas seis do total de oito par?metros avaliados na pesquisa; a argamassa com adi??o de 4,0 % de p? de borracha de pneu atendeu ?s exig?ncias estabelecidas nas normas de especifica??es correspondentes para, apenas, a resist?ncia ? compress?o e a resist?ncia de ader?ncia ? tra??o; as demais argamassas com adi??o de 8,0 %, 12,0 %, 16,0 % e 20,0 % de p? de borracha de pneu atenderam ?s exig?ncias das normas de especifica??es correspondentes, apenas quanto ? resist?ncia de ader?ncia ? tra??o. Esse resultado evidencia a conclus?o de que a adi??o de p? de borracha de pneu n?o confere melhoria de desempenho ?s argamassas. / In this work it is assessed the performance of Portland cement-based mortar to the grouting of type II ceramic plates with the addition of unusable tire rubber powder. It is presented a bibliographical review about the subject in which is done the theoretical and methodological foundation of the whole investigative process. The analyzed universe comprises a sample of mortar to the grouting of conventional ceramic plates type II (reference sample) and five more samples to the grouting of ceramic plates type II, which were made up of the addition of unusable tire rubber powder in the respective proportion (in mass) of 4%, 8%, 12%, 16% and 20%. These mortar samples were subject to the trials of determination of the consistency index (Brazilian Standard NBR 13276:2005), water retention ( Brazilian Standard NBR 14992 Attachment B:2003), permeability in 240 minutes (Brazilian Standard NBR 14992 Attachment G:2003), absorption of water by immersion (Brazilian Standard NBR 9781:2013), resistance to compression (Brazilian Standard NBR14992 Attachment D: 2003), resistance to traction in the flexion (Brazilian Standard NBR 13279:2005), resistance of traction adherence (Brazilian Standard NBR 14081 part 4:2012) and hardened mass density (Brazilian Standard NBR 13280: 2005). It has been found out from the analyzes of the results in the trial the following situation: the reference mortar used met the established requirements in the norms of specifications corresponding to only six from the eight parameters assessed in the research; the mortar with addition of 4,0% of tire rubber powder met the established requirements corresponding to only the resistance to compression and the resistance of adherence to traction. Thus, the other kinds of mortar with addition of 8,0 %, 12,0 %, 16,0 % and 20,0 % of tire rubber powder met the requirements of specifications corresponding to only the resistance to compression and the resistance of adherence to traction. This result concludes that the adding of tire rubber powder does not grant improvement to the mortar of type II grouting to the laying of ceramic plates.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20819 |
| Date | 15 December 2015 |
| Creators | Queir?s, Jos? Eurico de |
| Contributors | 52402444487, http://lattes.cnpq.br/7590200701773198, Borja, Edilberto Vitorino de, 42366275404, http://lattes.cnpq.br/3963819691050536, Anjos, Marcos Alyssandro Soares dos, 02262184496, http://lattes.cnpq.br/3904325866154130, Anjos, Marcos Alyssandro Soares dos, Almeida, Maria das Vit?rias Vieira |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA CIVIL, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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