Experimental Investigation on the Effect of Titanium dioxide and Carbon fibers on the Mechanical and Microstructural Properties of Cement Beams

Hunashyal, Anand M.; Suman, J M; Banapurmath, N.R.; Quadri, S. S.; Shettar, Ashok

doi:10.15764/nano.2015.01001

Cited by 5 publications

(4 citation statements)

References 18 publications

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“…Compression test showed that replacement of cement by 1% by weight increased the strength when compared to the control mix. Addition of fibres along with n-TiO 2 would further increase the strength of concrete as reported by Hunashyal et al [21]. They investigated the behaviour of cement beams reinforced with n-TiO 2 (0.1 and 0.5% replacement) and carbon fibres.…”

Section: Mechanical Properties Of N-tio 2 Concretementioning

confidence: 90%

“…Behfarnia et al [20] reported n-TiO 2 replacement up to 4% showing optimum dispersion and improving the pore structure of the concrete. Hunashyal et al [21] found out that 0.1% replacement improved the strength of concrete but exhibited poor dispersion, whereas 0.5% replacement showed good dispersion with n-TiO 2 particles evenly distributed in the matrix. Feng et al [1] observed decrease in the quantity of internal microcracks when 1% n-TiO 2 was added.…”

Section: Microstructure and Dispersion Of N-tio 2 Concretementioning

confidence: 99%

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Implications of Nano-Titanium Dioxide Incorporation in Cement Matrix: A Review

Devasena

Sangeetha²

2021

J. Inst. Eng. India Ser. D

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Incorporation of nano-titanium dioxide in cement exhibits significant improvement in properties of cement composites. Increased research in the use of nanotitanium dioxide in construction industry is attributed to its nanosize that accelerates hydration of cement, reduces setting time and enhances the mechanical properties. The dimensional stability of cement mix affected by excess addition of nano-titanium dioxide is mitigated by optimal selection of size of nano-titanium dioxide. The review focuses on the effect of nano-titanium dioxide on heat of hydration, workability, setting time, mechanical strength, microstructure, and permeability of the blended cement mixes. About an optimum replacement percentage of around 2.0-3.0% exhibits notable impacts in improving the quality of the cement matrix. The paper also brings out the picture of futuristic development of nano-titanium dioxide incorporation in cement industry and the feasibility of its sustained use.

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Section: Mechanical Properties Of N-tio 2 Concretementioning

confidence: 90%

Section: Microstructure and Dispersion Of N-tio 2 Concretementioning

confidence: 99%

Implications of Nano-Titanium Dioxide Incorporation in Cement Matrix: A Review

Devasena

Sangeetha²

2021

J. Inst. Eng. India Ser. D

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Section: Introductionmentioning

confidence: 99%

“…Copper oxide nanoparticles are the most studied materials between all the metal oxides because of interesting properties as a p-type semiconductor with the possibility of a large difference in energy band gap. Copper oxide are used in many different applications such as nanofluid [7], gas sensors [8], anodes in battery [9], magnetic storage media [10], photodetectors [11], energetic materials [12], photocatalysis [13], antibacterial materials [14] and many others. Through the past few years, several methods used to fabricate the copper oxide nanoparticles including sol gel [15], hydrothermal [16], sonochemical [17], microwave [18] and solvothermal [19].…”

Section: Introductionmentioning

confidence: 99%

Effect of Solvents on Size of Copper Oxide Nanoparticles Fabricated using Photolysis Method

Mahmoud¹,

Kareem²,

Kareem³

2017

Asian J. Chem.

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INTRODUCTIONInorganic nanostructures materials with fully-determined morphologies having excellent properties and probable applications have received major attention in recent years. The nanoparticles of metal oxide are prominent in inorganic material research for developing different practical applications and these nanoparticles have individual chemical properties [1][2][3] depends on their structure, composition, shape and size [4][5][6]. Copper oxide nanoparticles are the most studied materials between all the metal oxides because of interesting properties as a p-type semiconductor with the possibility of a large difference in energy band gap. Copper oxide are used in many different applications such as nanofluid [7] [19]. Of all the above synthesis procedure, it appears to be very difficult to get a pure crystal of copper oxide material without adding many stabilizing agents. Actually, as it was adduced [20], the elaboration of copper oxide nanoparticles is usually accompanied by the presence of side product such Cu2O or Cu(OH)2. For this, the defy taken up in this paper is to fabricate pure copper oxide nanoparticles, in the nano range, using novel and the low-cost photolysis method without adding any stabilizing agent. This Copper oxide nanoparticles with different size were successfully fabricated by the photolysis method through the irradiation of copper oxalate complex with different solvents. The effect of the type of solvent on the size of nanoparticles was investigated. The structure and size of nanoparticles were determined using XRD and TEM, while the spectral properties of copper oxide nanoparticles investigated using FTIR and UV-visible. XRD diffraction studies obtained pure monoclinic structure of copper oxide without secondary phase and the size of particles (8.4 to 11.4 nm) depends strongly on the dielectric constant of solvents and the smallest particles of copper oxide were showed when using the ethanol as solvent. A blue shift in the essential gap energy (from 4.21 to 4.58 eV) due to the quantum confinement effect, is obtained in the spectra analysis when the particles size decreases. Effect of Solvents on Size of Copper Oxide Nanoparticles Fabricated using Photolysis Method Keywords: Copper oxide nanoparticles, Photolysis, Irradiation, Quantum confinement.process contained irradiation the complex or salt of copper to transform it from the oxidation state (+2) to oxidation state (+1) using an ice bath to avoid the high temperature then, the product burned at 300 °C. Furthermore, as it can be abstracted from this work when the fabricate parameters are well optimized, the photolysis method can produce a pure product. In this framework, the paper aim to study the effect of the solvent nature on the size of particles of the as-prepared copper oxide nanoparticles. EXPERIMENTALCopper oxide nanoparticles were prepared using potassium oxalate and copper sulphate (Sigma Aldrich, 99 %) as precursors.Preparation of complex and copper oxide nanoparticles: In two separate beakers, 3.1 g of potassium ox...

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Self-cleaning property of mortars with TiO2 addition using real diesel exhaust soot

Pozo-António

Dionísio²

2017

Journal of Cleaner Production

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Experimental Investigation on the Effect of Titanium dioxide and Carbon fibers on the Mechanical and Microstructural Properties of Cement Beams

Cited by 5 publications

References 18 publications

Implications of Nano-Titanium Dioxide Incorporation in Cement Matrix: A Review

Implications of Nano-Titanium Dioxide Incorporation in Cement Matrix: A Review

Effect of Solvents on Size of Copper Oxide Nanoparticles Fabricated using Photolysis Method

Self-cleaning property of mortars with TiO2 addition using real diesel exhaust soot

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