Fe 2 O 3 nanoparticles improve the physical properties of heavy-weight wellbore cements: A laboratory study

Soltanian, Hamid; Khalokakaie, Reza; Ataei, Mohammad; Kazemzadeh, Ezatallah

doi:10.1016/j.jngse.2015.06.004

Cited by 17 publications

(7 citation statements)

References 11 publications

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“…Iron oxide (Fe2O3) is often used as an additive in mortar and concrete in percentages of up to 5% of the amount of cement because the pozzolanic reactions it causes improve the mechanical strength. [29][30][31][32].…”

Section: Analysis Of Resultsmentioning

confidence: 99%

“…Firstly, there is a slight improvement in packing produced by GCW-GS, as can be seen in the granulometric curves in Figure 3. Secondly, the presence of Fe2O3 and CaO in the mixture improves pozzolanic activity [29], [30], [31], [32] and reduces autogenous shrinkage [33]. The favourable effect of Fe2O3 occurs for substitution percentages of around 2-3% on the total quantity of cement [31], [34].…”

Section: Compressive Strengthmentioning

confidence: 99%

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Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibres

Gayarre¹,

González²,

Boadella³

et al. 2021

Preprint

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The purpose of this study is to analyse the feasibility of using waste from granite gang saws (GCW-GS) to manufacture ultra-high performance, steel-fibre reinforced concrete (UHPFRC). These machines cut granite blocks by abrasion using a steel blade and slurry containing fine steel grit. The waste generated by gang saws (GCW-GS) contains up to 15% Fe2O3 and up to 5% CaO. This is the main difference from the waste produced by diamond saws (GCW-D). Consequently, the second objective of this study is to compare the results of the waste obtained with gang saws with that from diamond saws, in order to determine the influence of iron and calcium oxides. The waste from cutting granite with gang saws was used in different percentages to replace micronized quartz powder of natural origin in the manufacture of UHPRFC. All the test specimens were analysed to determine their compressive strength, elasticity modulus, flexural strength and indirect tensile strength. The final conclusion is that wastes from both gang saws and diamond saws can be used to manufacture UHPFRC with an improvement in the mechanical properties up to a 35% replacement. The results for GCW-GS are better, mainly due to the pozzolanic effect of the iron dioxide. For higher percentage replacements the mechanical properties are close to the control concrete with small decreases.

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Section: Analysis Of Resultsmentioning

confidence: 99%

Section: Compressive Strengthmentioning

confidence: 99%

Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibres

Gayarre¹,

González²,

Boadella³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…At the same time, the study points out that too high nano-Fe2O3 content can lead to the agglomeration of the nanoparticles and the creation of weak zones due to the unsuitable dispersion of the Fe2O3 nanoparticles in cement. In another study by Soltanian et al [7], adding the Fe2O3 in cement slurry improves the elastic properties and the compressive strength up to 74% obtained for an optimal nano-Fe2O3 content of 11.81%. Results show also a higher viscosity and more suspending ability of solid particles as well as lower free water of the cement slurries modified by nano-Fe2O3 [8,9].…”

Section: Introductionmentioning

confidence: 90%

Preventing cement-based materials failure by embedding Fe2O3 nanoparticles

Laanaiya

Zaoui

2020

Construction and Building Materials

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“…The addition of nano-additives including nano-SiO 2 (nS) and nano-TiO 2 (nT) can increase the yield stress, the plastic viscosity, and the torque significantly [188]. The addition of Fe 2 O 3 nanoparticles can improve the performance of wellbore cement slurries by increasing the viscosity, the elastic properties after early hydration and the suspending ability of cement particles while decreasing the free water, fluid loss, the compressive strength and the thickening time [189]. The addition of cellulose nanofibers (CNF) increases the yield stress, the degree of hydration, and the flexural strength of the cement slurry [190,191].…”

Section: Effect Of Additives/admixtures On the Viscositymentioning

confidence: 99%

A Review of Rheological Modeling of Cement Slurry in Oil Well Applications

et al. 2020

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The rheological behavior of cement slurries is important in trying to prevent and eliminate gas-migration related problems in oil well applications. In this paper, we review the constitutive modeling of cement slurries/pastes. Cement slurries, in general, behave as complex non-linear fluids with the possibility of exhibiting viscoelasticity, thixotropy, yield stress, shear-thinning effects, etc. The shear viscosity and the yield stress are two of the most important rheological characteristics of cement; these have been studied extensively and a review of these studies is provided in this paper. We discuss the importance of changing the concentration of cement particles, water-to-cement ratio, additives/admixtures, shear rate, temperature and pressure, mixing methods, and the thixotropic behavior of cement on the stress tensor. In the concluding remarks, we propose a new constitutive model for cement slurry, considering the basic non-Newtonian nature of the different models.

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Fe 2 O 3 nanoparticles improve the physical properties of heavy-weight wellbore cements: A laboratory study

Cited by 17 publications

References 11 publications

Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibres

Use of Waste from Granite Gang Saws to Manufacture Ultra-High Performance Concrete Reinforced with Steel Fibres

Preventing cement-based materials failure by embedding Fe2O3 nanoparticles

A Review of Rheological Modeling of Cement Slurry in Oil Well Applications

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