New sustainable mortar compositions containing perlite waste

Neto, Roberto Evaristo de Oliveira; Cartaxo, Juliana de Melo; Rodrigues, Alisson Mendes; Barros, Sâmea Valensca Alves; Costa, Fabiana Pereira da; Neves, G. A.; Menezes, Romualdo Rodrigues

doi:10.1007/s10098-021-02255-0

Cited by 4 publications

(7 citation statements)

References 30 publications

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“…Additionally, the presence of an amorphous halo is observed in the 2θ range between 20 to 30 • (CP waste) and between 15 to 30 • (FP waste), characteristic of perlite [43]. Similar findings have been documented in the existing literature [27,44,45].…”

Section: Characterizationssupporting

confidence: 87%

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Filho,

Silva,

Silva

et al. 2023

Sustainability

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Perlite waste materials with different particle sizes were evaluated as potential candidates for removing the malachite green (MG) and Congo red (CR) dyes from contaminated water. Two types of waste, referred to as coarse (CP) and fine (FP), with particle sizes of 0.075 mm, 0.045 mm, and 0.037 mm, were used. The samples were characterized using X-ray diffraction, X-ray fluorescence, Fourier transform infrared spectroscopy, and N2 adsorption/desorption. The adsorption efficiency of MG and CR was investigated by varying the parameters of pH, contact time, and initial concentration. The reduction in particle size significantly influenced the removal of the CR dye, leading to an increase in the adsorption rate of 23.9% and 45.5% for CP and FP, respectively. Conversely, the adsorption of the MG dye on the residues was not affected by different particle sizes. CP and FP exhibited a removal rate exceeding 70% for both dyes. The adsorption of MG and CR on the wastes was well-described by the Sips isotherm model. The results of adsorption kinetics were best fit by the Elovich model. Perlite waste materials have demonstrated significant potential for the adsorptive remove of cationic and anionic dyes from aqueous solutions.

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Section: Characterizationssupporting

confidence: 87%

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Filho,

Silva,

Silva

et al. 2023

Sustainability

Self Cite

View full text Add to dashboard Cite

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“…The significance and predictive capability of the models can be evaluated through the F-test (F cal ). For a model to be significant and predictive, the calculated F-value (F cal ) should be at least four to six times greater than the tabulated F-value (F tab ) in the Fisher-Snedecor distribution [35]. For the analysis of CS, the quadratic model showed the highest values of F cal /F tab (6.46), R 2 (90.17%), and R 2 Adj (86.90%), making it the most suitable for predicting CS results.…”

Section: Experimental Design Resultsmentioning

confidence: 99%

“…These crystals generate internal stresses and cracks around the aggregates, creating points susceptible to crack propagation. As a result, the material weakens [35,44].…”

Section: Resistance To Alkali-aggregate Reactionmentioning

confidence: 99%

Statistical Design of Eco-Friendly Mortar Mixtures Containing Scheelite Tailings and Quartzite Sand: Evaluation of Resistance to Alkali-Aggregate Reaction

Arruda,

Costa,

Diniz

et al. 2023

Sustainability

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This study focuses on addressing the challenge of society’s consumer demands through sustainable production processes, as outlined by Sustainable Development Goal 12 established by the United Nations. In this context, this study aims to assess the durability of eco-friendly mortars with mineral waste as alternative raw materials, considering the alkali-aggregate reaction (AAR). For this purpose, scheelite tailing (ST) was used to partially replace Portland cement (PC), and quartzite sand (QS) was used to fully replace conventional sand. The ST was ground and sieved (<75 μm), and part of it was used in its natural form, while the other part was calcined (1000 °C for 1 h). A mixture experimental design was created to select the compositions with the best mechanical performance. All the mortar mixtures were produced with a cementitious material to QS ratio of 1:3. Three mortar compositions (0% ST, 30% natural ST, and 30% calcined ST) were selected to study the resistance to the AAR. Linear expansion measurements, compressive strength tests, X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy were conducted to evaluate the phases formed and the mechanical behavior of the mortars in relation to the AAR. The expansion results demonstrated that QS does not exhibit deleterious potential. Regarding the use of ST, the results indicated that it is possible to partially replace PC with calcined ST without significantly compromising the mechanical performance and durability of the mortars. However, the use of non-calcined ST is not recommended, as it presents deleterious effects on the mechanical properties of the mortars. This study highlights a new sustainable mortar alternative for use in construction without future degradation of its properties.

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“…De Oliveira Neto et al 2022 [14], In this study, the use of powdered and coarse perlite waste (PP and CP) was investigated to develop sustainable mortar compositions. The waste was characterized using Xray diffraction and particle size distribution.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Basalt Fiber Reinforced Perlite Aggregate Cement Mortars

Filazi

Pehlivanlı

2023

ICPIS

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– In this study, the mechanical properties of basalt fiber reinforced perlite aggregate cementmortars were investigated. The aim of the research was to determine the effect of basalt fiber on the strengthproperties of cement mortar and to identify the optimal fiber content. Specimens with different proportionsof basalt fiber were prepared, and their compressive and flexural strengths were measured at 7 days and 28days. A control specimen with no fiber reinforcement (B0) was used for comparison.The results showed that basalt fiber generally enhanced the strength of the cement mortar. The specimenswith basalt fiber reinforcement exhibited higher compressive and flexural strengths compared to the controlspecimen (B0). Particularly, a more significant increase in strength values was observed in the specimenswith basalt fiber at the 28-day testing period. However, the effect of basalt fiber content and distributionvaried among the specimens. In some specimens (B1.5, B2, B3), a slight decrease in strength was observedat certain testing periods.This study highlights the significance of basalt fiber reinforced perlite aggregate cement mortars as aresearch area, considering the increasing demand for their use in construction applications.

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New sustainable mortar compositions containing perlite waste

Cited by 4 publications

References 30 publications

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Isothermal and Kinetic Studies for the Removal of Malachite Green and Congo Red Dyes Using Wastes from Mining and Processing Perlite in Different Particle Sizes as Sustainable Adsorbents

Statistical Design of Eco-Friendly Mortar Mixtures Containing Scheelite Tailings and Quartzite Sand: Evaluation of Resistance to Alkali-Aggregate Reaction

Mechanical Properties of Basalt Fiber Reinforced Perlite Aggregate Cement Mortars

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