Effects of nano-TiO2, nano-Al2O3, and nano-Fe2O3 on rheology, mechanical and durability properties of self-consolidating concrete (SCC): An experimental study

Joshaghani, Alireza; Balapour, Mohammad; Mashhadian, Mohammad; Ozbakkaloglu, Togay

doi:10.1016/j.conbuildmat.2020.118444

Cited by 142 publications

(60 citation statements)

References 55 publications

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“…Adding TiO 2 to concrete will change its performance. Joshaghani et al [68] obtained the dosage of high-range water-reducing admixture (HRWRA) required for each mixture to achieve a slump of 650 ± 25 mm. e solidification delay caused by a high HRWRA dosage is the main reason for the surface subsidence of self-compacting concrete.…”

Section: Effect Of Titanium Oxide On the Workability Of Hpcmentioning

confidence: 99%

“…e reason is that micronanomaterial fills the surplus pores and voids of the mixture, which promotes the matrix material to be denser. Joshaghani et al [68] used the mechanical properties as the starting point and analyzed the influence of different types of nanoparticles (including nano-TiO 2 , NA and nano-Fe 2 O 3 ) on the properties of self-compacting concrete through different test methods. Compared with NA and NT, nano-Fe 2 O 3 is considerably better at enhancing compressive strength because hydrated ferric calcium gel is formed in the microstructure.…”

Section: Influence Of Other Nanomaterials On the Mechanicalmentioning

confidence: 99%

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A Critical Review on Effect of Nanomaterials on Workability and Mechanical Properties of High‐Performance Concrete

Zhang

Wang

Wei

et al. 2021

Advances in Civil Engineering

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The application of nanomaterials in high-performance concrete (HPC) has been extensively studied worldwide due to their large surface areas, small particle sizes, filling effects, and macroquantum tunneling effects. The addition of nanomaterials in HPC has great contribution to enhancing the pore size of the cementitious matrix, improving the hydration of cement, and making the matrix much denser. In order to present an exhaustive insight into the feasibility of HPC reinforced with nanomaterials, the new development of HPC was summarized and the influence of different nanomaterials on the properties of HPC was reviewed based on more than 100 recent studies in this literature review. Workability, compressive strength, tensile strength, and flexural strength properties of HPC with nanomaterials were discussed in detail. In addition, nanomaterial-modified HPC was compared with the traditional concrete and obtained a lot of valuable results. The results in the present review indicate that the addition of various nanomaterials improves the mechanical properties of HPC, while reducing the workability of HPC. However, there is an optimal dosage of nanomaterial for improving the mechanical properties of HPC. Improving the properties of HPC by adding nanomaterials is expected to become a mainstream technique in the future. This literature review can provide comprehensive and systematic knowledge to researchers and engineers working on HPC and promote the application of this new HPC in modern civil engineering.

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Section: Effect Of Titanium Oxide On the Workability Of Hpcmentioning

confidence: 99%

Section: Influence Of Other Nanomaterials On the Mechanicalmentioning

confidence: 99%

A Critical Review on Effect of Nanomaterials on Workability and Mechanical Properties of High‐Performance Concrete

Zhang

Wang

Wei

et al. 2021

Advances in Civil Engineering

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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%

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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“…Results showed that the addition of 2% NS did not have any significant effect on the workability, while the addition of FA increased workability at different percentages. V-funnel test results showed the lowest flow time for 10% and 15% addition of FA which was 2.5 s and the highest for 2% addition of NS which was 12 s. Joshaghani et al [39] showed that the slump flow diameter of SCC containing various types of nanoparticles exhibits a decreasing trend due to the small particle size of nanomaterials and their tendency to consume a higher amount of water. However, the addition of nanoparticles up to 3% improved the V-funnel and L-box behavior of SCC samples.…”

Section: Self-compacting Concrete (Scc)mentioning

confidence: 99%

Nanoparticles used as an ingredient in different types of concrete

Mahmood

Koçkal

2021

SN Appl. Sci.

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Attempts to modify cement-based mixtures and to improve their properties have always attracted the attention of researchers. Favorable effects of nanoparticles, such as small particle size, high reactivity, and great surface area, have made them be used as one of the best replacements of cement. This paper aims to review the previous researches conducted regarding the effects of nanoparticles on the properties of concretes. Influence of various types of nanoparticles on the workability of fresh composite, mechanical properties such as compressive strength, flexural strength, splitting tensile strength, modulus of elasticity, and abrasion resistance, and durability-related properties such as water absorption, chloride ion penetration, resistance to frost, shrinkage, and carbonation of concrete is discussed.

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Effects of nano-TiO2, nano-Al2O3, and nano-Fe2O3 on rheology, mechanical and durability properties of self-consolidating concrete (SCC): An experimental study

Cited by 142 publications

References 55 publications

A Critical Review on Effect of Nanomaterials on Workability and Mechanical Properties of High‐Performance Concrete

A Critical Review on Effect of Nanomaterials on Workability and Mechanical Properties of High‐Performance Concrete

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

Nanoparticles used as an ingredient in different types of concrete

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