Role of water/cement ratio on strength development of cement mortar

Singh, S. B.; Munjal, Pankaj; Thammishetti, Nikesh

doi:10.1016/j.jobe.2015.09.003

Cited by 187 publications

(74 citation statements)

References 13 publications

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“…Tal fato pode ter ocorrido devido à manutenção da relação água/aglomerante de 0,88 em todas as misturas. Assim, com o aumento do teor de resíduo na composição da mistura, e consequente diminuição do teor de cimento, proporcionou um aumento da relação água/cimento, o que causa a diminuição da resistência da mistura [17,18].…”

Section: Coeficientes De Capilaridade Resistência à Tração Na Flexãounclassified

Substituição Do Cimento Portland Por Resíduo De Placa Cerâmica Em Argamassa

Formigoni¹,

Godinho²,

Junca³

et al. 2019

Tecnol. Metal. Mater. Min.

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2176-1523 © 2019 da publicação Associação Brasileira de Metalurgia, Materiais e Mineração. Publicado pela ABM. Este é um artigo de acesso aberto distribuído sob os termos da licença Creative Commons CC BY-NC-ND (Attribution-NonCommercial-NoDerivs)https://creativecommons.org/licenses/by-nc-nd/4.0/. a Resumo O objetivo deste trabalho é estudar a substituição do cimento Portland por resíduo de placa cerâmica em argamassa. O resíduo de placa cerâmica foi cominuído e caracterizado através de análise química e análise granulométrica. Em seguida, foram confeccionadas misturas com substituições de 5%, 12% e 20% do cimento Portland e determinados os índices de consistência, absorção da água, índice de vazios, massa específica, resistências à tração na flexão e resistência compressão axial para cada mistura. Os resultados mostraram que o resíduo de placa cerâmica é composto principalmente por SiO 2 (69,09%) e Al 2 O 3 (15,4%). A substituição de 5 e 12% ocasionou uma diminuição da porosidade dos corpos de prova. Os testes de resistência à tração na flexão mostraram um aumento nesta propriedade. Entretanto, os testes de resistência à compressão axial apresentaram um decréscimo de 0,9% e 2,5% para as substituições de 5 e 12%. Palavras-chave: Resíduos de placas cerâmicas; Cimento Portland; Resíduos sólidos. AbstractThe aim of this paper is to study the replacement of Portland cement by ceramic plates waste into mortar. The ceramic plate waste was milled and characterized through chemical analysis and particle size analysis. Then, it was elaborated mixtures in order to replace 5, 12 and 20 wt.% of Portland cement by ceramic plates waste. In addition, the consistency indices, water absorption, void index, specific mass, tensile strength in flexion and axial compression were determined for each mixture. The results showed that the ceramic plates waste are composed by of SiO 2 (69.09 wt.%) and Al 2 O 3 (15.4 wt.%). The replacement of 5 and 12 wt.% decreased the mortar porosity. The tensile strength in flexion assays showed an increase on this property. However, the axial compression tests presented a decrease of 0.9% and 2.5% for replacement of 5 and 12 wt.%.

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Section: Coeficientes De Capilaridade Resistência à Tração Na Flexãounclassified

Substituição Do Cimento Portland Por Resíduo De Placa Cerâmica Em Argamassa

Formigoni¹,

Godinho²,

Junca³

et al. 2019

Tecnol. Metal. Mater. Min.

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“…The water/cement ratio was set at 1.01 [24,25,26], which was necessary for the control mixture to comply with the flow according to ASTM C 1437-15 [27].…”

Section: First Stagementioning

confidence: 99%

Properties of Portland Cement Mortar with Substitutions of Natural and Expanded Perlite

Sánchez¹,

Martínez-Molina²,

Chávez-García³

et al. 2018

Period. Polytech. Civil Eng.

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“…Many scholars have conducted several research works on the effects of different parameters including water to cement (W/C) ratio, sand to cement (S/C) ratio and aggregate type S/Con the compressive strength and related factors such as porosity, workability and durability of mortar [14][15][16][17][18][19][20]. As instance, Singah et al studied the effect of W/C ratio on mechanical properties of cement mortar such as compressive and tensile strengths [14]. The effect of different types of aggregates on the compressive strength of mortar was studied by Bumanis et al [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Main Factors on Fracture Mode of Mortar, A Graphical Study

2017

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One of the most effective ways to identify the concrete properties is to understand further about the cement mortar, which is a mixture of cement paste and fine aggregate. In order to identify the behavior of cement mortar, all required materials including cement, fine aggregate, water as well as the different ratios of each material should beinvestigated. The main objective of this research is to study the effectiveness of main parameters of mortar on the fracture mode and related factors. Specifically 26 mixing designs of flexural mortar with three cement strength classes (32.5, 42.5 and 52.5 MPa), three water to cement (W/C) ratios (0.25, 0.3 and 0.35) and three sand to cement (S/C) ratios (2.5, 2.75 and 3) were first prepared. The prepared samples were then tested using a stress-strain apparatus. Some pictures were finally taken from the fracture surfaces to investigate the mode and angle of fractures. The results indicated that any change in the main parameters of mortar changes the fracture mode and the fracture angle.

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Role of water/cement ratio on strength development of cement mortar

Cited by 187 publications

References 13 publications

Substituição Do Cimento Portland Por Resíduo De Placa Cerâmica Em Argamassa

Substituição Do Cimento Portland Por Resíduo De Placa Cerâmica Em Argamassa

Properties of Portland Cement Mortar with Substitutions of Natural and Expanded Perlite

Effect of Main Factors on Fracture Mode of Mortar, A Graphical Study

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