Effect of Granite Residue Incorporation on the Behavior of Mortars

Azevedo, Afonso Rangel Garcez de; Marvila, Markssuel Teixeira; Barroso, Laimara da Silva; Zanelato, Euzébio Bernabé; Alexandre, Jonas; Xavier, Gustavo de Castro; Monteiro, Sérgio Neves

doi:10.3390/ma12091449

Cited by 89 publications

(35 citation statements)

References 42 publications

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“…To make ceramic blocks, a kaolinite clay mass from the city of Campos dos Goytacazes-RJ, Brazil, which presented the same parameters of physical, chemical, and mineralogical characterization, indicated by other researchers who studied the same clay [21][22][23], was used. The ceramic blocks were produced using an Eco Master 7000 Turbo II press, with hydraulic control, 7.5 hp engine, and compression load up to 360 kN.…”

Section: Methodsmentioning

confidence: 99%

Analysis of deformability modulus by linear and nonlinear elastic methods in ceramic structural masonry and mortars

Cerqueira¹,

Marvila²,

Azevedo³

et al. 2020

Cerâmica

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There are studies analyzing the parameters of structural masonry strength, however few are performed evaluating the interference of the mortar in the deformability parameters. The objective of this study was to verify the theories of elasticity (Hooke’s linear model and nonlinear models by Ghosh, Duffing, and Martin, Roth, and Stiehler) applied to structural masonry. Ceramic blocks were pressed and fired at 890 ºC and mortars prepared with the proportion 1:1:5:0.5:2 of cement: hydrated lime: sand: PVA binder: water. The materials were tested in compression individually and in prisms with and without the use of mortars. The results obtained with the linear elastic analysis were incoherent since the deformability modulus obtained for the mortar prisms was higher than those without mortar. Performing the analysis by nonlinear theories, it was found that the results obtained were more coherent, mainly by Duffing’s theory that uses one parameter for stiffness and another for damping of the material.

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Section: Methodsmentioning

confidence: 99%

Analysis of deformability modulus by linear and nonlinear elastic methods in ceramic structural masonry and mortars

Cerqueira¹,

Marvila²,

Azevedo³

et al. 2020

Cerâmica

Self Cite

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“…11 Several studies have already assessed the impact of reusing industrial waste in civil construction materials, one of the best known cases in commercial terms is the blast furnace slag, which went from being a waste to becoming a by-product in the cement industry. 12 Other varied wastes have already been applied to ceramic materials, such as ornamental rock, 13,14 from the pulp and paper industry, 15 cigarettes 16 and others. Most of these studies are limited to questions of technological evaluations of these new materials and are still far from a real large-scale implementation.…”

mentioning

confidence: 99%

“…19 Brazil, as a country that exports a significant amount of ornamental rocks, has to deal with the liabilities generated in terms of the destination of the waste from the cutting and processing of the blocks. 13 Currently, the vast majority of these materials are destined to landfills, although some studies have already pointed out their potential for use in cementitious ceramics. 20 Thus, governments are expected to move forward towards a circularity of the economy for the management of the industrial solid waste, enabling many industries to properly use or dispose their by-products in other production chains.…”

mentioning

confidence: 99%

Circular economy in cementitious ceramics: Replacement of hydrated lime with a stoichiometric balanced combination of clay and marble waste

Marvila¹,

Azevedo

Alexandre³

et al. 2020

Int J Applied Ceramic Tech

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Cementitious ceramics, produced from the hydration of cement and hydrated lime, are responsible for a great deal of damage to the environment due to the high emission of CO 2 that occurs in the production of cement and lime. Therefore, the objective of this work was to substitute the hydrated lime with a combination of clay residue and marble waste extracted from ceramic and ornamental rock producing industries, respectively, which constitutes a circular economy for the ceramic industry related to masonry applications. Ceramics were produced in the proportion 1:1:6:1.5 (cement:lime:sand:water), through the molding procedure, and were studied by replacing hydrated lime with 100% clay residue and 100% marble residue, in addition to stoichiometric calculated parts of marble to clay. The molar ratios used were 1:1, 1:2, and 2:1 (marble:clay). Tests of consistency, incorporated air content, water retention, compression strength, density, water absorption by capillarity, adhesion, and electrical resistivity were performed. The results obtained demonstrate that the use of residue of marble and clay together, as long as they are correctly balanced, provides a high gain in technological properties, enabling the circular economy of cementitious ceramics, mainly for the composition 1 marble:1clay, which presented the best properties, both in the fresh and hardened state. The economic analysis carried out proved the financial gains for the industrial sectors involved (civil construction, ornamental rock, and ceramic).

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“…In addition, reference 1 : 1 : 6 mortars (REF116) show lower workability than 1 : 2 : 9 mortars (REF129) due to the comparatively greater amount of cement and minor amount of hydrated lime. is behavior is usually found in mortars and has been reported [20][21][22][23][24]. us, it is found that the composition of mortars directly affects the workability parameters of the material, where mortars with finer particles (such as marble residue) show an increase in workability.…”

Section: Analysis Of Materials Compositionmentioning

confidence: 86%

Study of the Compressive Strength of Mortars as a Function of Material Composition, Workability, and Specimen Geometry

Marvila¹,

Azevedo²,

Alexandre³

et al. 2020

Modelling and Simulation in Engineering

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In the present work, the statistical dispersion of the mortar compressive strength as a function of the geometric parameters of the specimens as well as the effect of the mortar workability difference on the compressive strength was investigated. For this purpose, specimens were prepared for six types of mortars: two conventional mortars in the proportions of 1 : 1 : 6 and 1 : 2 : 9 of cement, hydrated lime, and sand, respectively, two with clay replacing lime, and two with marble waste in place of lime. The results confirm the difference between the results found for the two geometries due to the differences in the heights of the molding layers and show that the workability of the mortar modifies the resistance properties, especially in the cylindrical mold where the molding of the specimens is more complex. By comparing the differences between the destructive test results and those defined by the Finite Element Modeling (FEM) for conventional mortars, it was clear that the effect of excess material in the sample during the compression tests did not change the strength properties studied. This facilitates the performance of the assay as specimens may be used excessively on the side without the need for sample rectification.

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Effect of Granite Residue Incorporation on the Behavior of Mortars

Cited by 89 publications

References 42 publications

Analysis of deformability modulus by linear and nonlinear elastic methods in ceramic structural masonry and mortars

Analysis of deformability modulus by linear and nonlinear elastic methods in ceramic structural masonry and mortars

Circular economy in cementitious ceramics: Replacement of hydrated lime with a stoichiometric balanced combination of clay and marble waste

Study of the Compressive Strength of Mortars as a Function of Material Composition, Workability, and Specimen Geometry

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