Effect of the particle size of nanosilica on the compressive strength and the optimum replacement content of cement mortar containing nano-SiO2

Haruehansapong, Sattawat; Pulngern, Tawich; Chucheepsakul, Somchai

doi:10.1016/j.conbuildmat.2013.10.002

Cited by 218 publications

(110 citation statements)

References 20 publications

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“…Consequently, sample designed as g+TiO 2 /N,C-600-10%, which contained the largest sized of TiO 2 particles (50 nm) revealed the highest values of compressive strength (6.64 MPa). Similar observation was reported by Haruehansapong et al 26 , for cement mortars containing nanosilica with various sizes. They confi rmed that medium particle size of nanosilica (40 nm) improvement the compressive strength of cement mortars.…”

supporting

confidence: 78%

NOx photocatalytic degradation on gypsum plates modified by TiO₂-N,C photocatalysts

Janus

Bubacz

Zatorska

et al. 2015

Polish Journal of Chemical Technology

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In presented studies the photocatalytic decomposition of NOx on gypsum plates modifi ed by TiO 2 -N,Cphotocatalysts were presented. The gypsum plates were obtained by addition of 10 or 20 wt.% of different types of titanium dioxide, such as: pure TiO 2 and carbon and nitrogen co-modifi ed TiO 2 (TiO 2 -N,C) to gypsum. TiO 2 -N,C photocatalysts were obtained by heating up the starting TiO 2 (Grupa Azoty Zakłady Chemiczne Police S.A) in the atmosphere of ammonia and carbon at the temperature: 100, 300 i 600 o C. Photocatalyst were characterized by FTIR/DRS, UVVis/DR, BET and XRD methods. Moreover the compressive strength tests of modifi ed gypsum were also done. Photocatalytic activity of gypsum plates was done during NOx decomposition. The highest photocatalytic activity has gypsum with 20 wt.% addition of TiO 2 -N,C obtained at 300 o C.

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supporting

confidence: 78%

NOx photocatalytic degradation on gypsum plates modified by TiO₂-N,C photocatalysts

Janus

Bubacz

Zatorska

et al. 2015

Polish Journal of Chemical Technology

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“…The early effect of the nanoparticles may be due to its influence on accelerating the pozzolanic transformation of C3S, C2S and CH into the C-S-H gel which was responsible for the strength improvements of the cement pastes. The cement pastes mixtures with (5% TiC) nanoparticles ( Figure 5) were the highest in gaining early strength at all curing periods due to it has small particles, which were superior in the filling the cement paste pores [22,23].…”

Section: Content (%)mentioning

confidence: 99%

“…It could be concluded that adding nanoparticles to cement paste mixtures increased its tensile strength. The reason for this may be related to the large surface area of nanoparticles which promote the pozzolanic reaction to form C-S-H gel which in turn gives the mixture its strength [22,23].…”

Section: Splitting Tensile Strengthmentioning

confidence: 99%

Effect of Adding Silicon Carbide and Titanium Carbide Nanoparticles on the Performance of the Cement Pastes

Mahawish¹,

Ibrahim²,

Jawad³

et al. 2017

J Civil Environ Eng

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The nanoparticle is used into cement pastes to improve its engineering properties. In this paper, silicon carbide (SiC) and titanium carbide (TiC) nanoparticles with a particle size (20 nm) were added at different percentages 1%, 2%, 3%, 4%, 5% and 6%) to cement pastes. The cement pastes were tested for mechanical and physical properties at different curing ages (7, 14, 21, and 28 days). The results of mechanical and physical tests showed a significant improvement with all mixtures of nanoparticles, and the maximum values of the mechanical and physical tests were associated with the cement paste samples with 5% TiC at curing time 28 days. SEM results showed the control samples of cement paste had needle shapes to structure Ca(OH)2 with the of large pores. However, adding of nanoparticles resulted in absence of needle shape structures, pore spaces and produced a homogeneous structure of compounds (C-SH).

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“…Sattawat Haruehansapong et.al, [1] presents the compressive strengths of cement mortars containing nanosilica (NS) with numerous sizes of 12, 20 and 40 nm then compared with cement mortar with silica fume (SF). Tested results showed that NS considerably improved compressive strength of cement mortar.…”

Section: Literature Surveymentioning

confidence: 99%

Review on Mechanical Properties of Cement Mortar Enhanced with Nanoparticles

2016

IJSR

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Cement mortar is a building composite produced by mixing cement and a selection of fine aggregates with a specified amount of water. The mortar can be used for a number of applications, such as plastering over bricks or other forms of masonry. Cement mortar has a low strength and durability, so it is not efficiently used for aggressive environment, such as chemical industries, offshore structures, power plants etc. Cement is a chief component of production of mortar. The leadingproblematic of global warming is CO 2 emission, throughout the cement manufacture. To overcome the above shortcomings, nanoparticles are added. If nanoparticles are combined with cement based building material, the new material might possess some outstanding properties. When nano-scale particles are integrated in cement mortar or in concrete, the products with different properties will be created. Nanoparticles can accelerate cement hydration due to their high activity and also they act as a nano-filler, compacting the microstructure, and consequently increase the strength and durability. By introducing the engineered nano materials(ENM) such as nano-SiO 2 , nano-Fe 2 O 3 , nano-Al 2 O 3 , nanoCuO, nano-TiO 2 , etc., and nano structured waste materials which can increase the mechanical properties and durability of the concrete and mortar.

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Effect of the particle size of nanosilica on the compressive strength and the optimum replacement content of cement mortar containing nano-SiO2

Cited by 218 publications

References 20 publications

NOx photocatalytic degradation on gypsum plates modified by TiO₂-N,C photocatalysts

NOx photocatalytic degradation on gypsum plates modified by TiO₂-N,C photocatalysts

Effect of Adding Silicon Carbide and Titanium Carbide Nanoparticles on the Performance of the Cement Pastes

Review on Mechanical Properties of Cement Mortar Enhanced with Nanoparticles

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Effect of the particle size of nanosilica on the compressive strength and the optimum replacement content of cement mortar containing nano-SiO2

Cited by 218 publications

References 20 publications

NOx photocatalytic degradation on gypsum plates modified by TiO2-N,C photocatalysts

NOx photocatalytic degradation on gypsum plates modified by TiO2-N,C photocatalysts

Effect of Adding Silicon Carbide and Titanium Carbide Nanoparticles on the Performance of the Cement Pastes

Review on Mechanical Properties of Cement Mortar Enhanced with Nanoparticles

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Product

Resources

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NOx photocatalytic degradation on gypsum plates modified by TiO₂-N,C photocatalysts

NOx photocatalytic degradation on gypsum plates modified by TiO₂-N,C photocatalysts