Effect of TiO2 on the hydration of tricalcium silicate

Katyal, Naman; Ahluwalia, S.C.; Parkash, Ram

doi:10.1016/s0008-8846(99)00171-4

Cited by 36 publications

(32 citation statements)

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“…The enhanced extent of the abrasion resistance of concrete is decreased by increasing the content of TiO 2 nanoparticles 36 . The hydration kinetics of titaniabearing tricalcium silicate phase has been studied 37 . Nano-TiO 2 -doped tricalcium silicate (C 3 S) was obtained by repeated firing of calcium carbonate and quartz in the stoichiometric ratio of 3:1 in the presence of varying amounts of titanium dioxide from 0.5 to 6% of mass.…”

Section: Introductionmentioning

confidence: 99%

The effects of CuO nanoparticles on properties of self compacting concrete with GGBFS as binder

2011

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In this work, strength assessments and percentage of water absorption of high performance self compacting concrete containing different amounts of ground granulated blast furnace slag and CuO nanoparticles as binder have been investigated. Portland cement was replaced by different amounts of ground granulated blast furnace slag and the properties of concrete specimens were investigated. Although it negatively impacts the physical and mechanical properties of concrete at early age of curing, ground granulated blast furnace slag was found to improve the physical and mechanical properties of concrete up to 45 wt. (%) at later ages. CuO nanoparticles with the average particle size of 15 nm were partially added to concrete with the optimum content of ground granulated blast furnace slag and physical and mechanical properties of the specimens were measured. CuO nanoparticle as a partial replacement of cement up to 3.0 wt. (%) could accelerate C-S-H gel formation as a result of increased crystalline Ca(OH) 2 amount at the early age of hydration and hence increase strength and improve the resistance to water permeability of concrete specimens. The increased the CuO nanoparticles' content more than 3.0 wt. (%), causes the reduced the split tensile strength because of the decreased crystalline Ca(OH) 2 content required for C-S-H gel formation. Several empirical relationships have been presented to predict flexural and split tensile strength of the specimens by means of the corresponding compressive strength at a certain age of curing. More rapid appearance of the peaks related to hydrated products in X-ray diffraction results, all indicate that CuO nanoparticles could improve mechanical and physical properties of the concrete specimens.

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Section: Introductionmentioning

confidence: 99%

The effects of CuO nanoparticles on properties of self compacting concrete with GGBFS as binder

2011

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“…Nano-TiO 2 -doped tricalcium silicate (C 3 S) was obtained by repeated firing of calcium carbonate and quartz in the stoichiometric ratio of 3:1 in the presence of varying amounts of titanium dioxide from 0.5 to 6% by weight. The study revealed that the presence of up to 2% TiO 2 has an inhibiting effect on the rate of hydration of C 3 S [19] . In addition, some of the works have conducted on utilizing nano-Al 2 O 3 [17,18] , nano-Fe 2 O 3 [19] and zinc-iron oxide nanoparticles 20 .…”

Section: Introductionmentioning

confidence: 94%

“…The study revealed that the presence of up to 2% TiO 2 has an inhibiting effect on the rate of hydration of C 3 S [19] . In addition, some of the works have conducted on utilizing nano-Al 2 O 3 [17,18] , nano-Fe 2 O 3 [19] and zinc-iron oxide nanoparticles 20 . The other nanoparticles (such as ZrO 2 nanoparticles in this work) have rarely investigated and some of researchers do not agree that the other nanoparticles could be pozzolans.…”

Section: Introductionmentioning

confidence: 94%

“…There are several reports on merging nanoparticles in concrete specimens which most of them have focused on using SiO 2 [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] and TiO 2 nanoparticles [17][18][19] . SiO 2 nanoparticles have been found to improve concrete strength 2,9,11 , to increase resistance to water permeability 12 , and to help control the leaching of calcium 13 , which is closely associated with various types of concrete degradation.…”

Section: Introductionmentioning

confidence: 99%

“…The enhanced extent of the abrasion resistance of concrete is decreased by increasing the content of TiO 2 nanoparticles 18 . The hydration kinetics of titania-bearing tricalcium silicate phase has been studied 19 . Nano-TiO 2 -doped tricalcium silicate (C 3 S) was obtained by repeated firing of calcium carbonate and quartz in the stoichiometric ratio of 3:1 in the presence of varying amounts of titanium dioxide from 0.5 to 6% by weight.…”

Section: Introductionmentioning

confidence: 99%

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Improvement compressive strength of cementitious composites in different curing media by incorporating ZrO2 nanoparticles

et al. 2012

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In the present work, the effect of curing medium on microstructure, physical, mechanical and thermal properties of ZrO 2 nanoparticles blended concrete has been investigated. ZrO 2 nanoparticles were partially used instead of cement by 0.5, 1.0, 1.5 and 2.0 weight percent. Curing of the specimens was carried out in water and saturated limewater for 7, 28 and 90 days. The results indicate that ZrO 2 nanoparticles up to maximum of 2.0% produces cementitious composite with improved compressive strength by curing in saturated limewater. The optimum level of replacement for the specimens cured in water was 1.0 weight percent. ZrO 2 nanoparticles can improve the filler effects and also the high activity of fine particles substantially increases the quantity of strengthening gel. Although the limewater reduces the strength of concrete without nanoparticles when compared with the specimens cured in water, curing the specimens in saturated limewater results in more strengthening gel formation around ZrO 2 nanoparticles blended concrete causes high strength.

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Influence of iron doped TiO₂ nanotubes on the hydration of tricalcium silicate

Qattali,

Pritzel,

Kowald

et al. 2023

ce papers

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Environmental pollution is one of biggest challenges facing the world. The promising technology to control this problem is utilization of semiconductor materials as photocatalyst. It is well known that normal TiO2 showing photocatalytic activity in the UV light, so to decrease the band gap and shifting into visible light, titanium dioxide nanotubes was doped with Fe3+ ions. The influence of fabricated Fe‐doped TiO2 nanotubes (Fe/TiNTs) on the hydration of tricalcium silicate (C3S) have been studied. Addition of 1.0 wt%, 2.0 wt% and 3.0 wt% of Fe/TiNTs into C3S system significantly accelerated the course of hydration. Study on the hydration products after 8h, 1d and 7d improved the degree of hydration. The enhancing of compressive strength of hydrated C3S after 7d, 14d and 28d was observed comparing to the normal TiO2 nanotubes (TiNTs). Also treating both Fe/TiNTs and TiNTs with supersaturated Ca(OH)2 solution revealed a strong interaction between Ca2+‐ ions and nanotubes particularly in the presence of iron (Fe/TiNTs). The specific surface area of hydration products in the presence of Fe/TiNTs was increased. In this study, isothermal calorimetry was utilized for the course of hydration, x‐ ray powder diffraction (XRD) for the phase composition in combination with simultaneous thermal analysis (STA) and gas adsorption (GA) for measuring specific surface area of nanotubes and hydration products.

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Effect of TiO2 on the hydration of tricalcium silicate

Cited by 36 publications

References 3 publications

The effects of CuO nanoparticles on properties of self compacting concrete with GGBFS as binder

The effects of CuO nanoparticles on properties of self compacting concrete with GGBFS as binder

Improvement compressive strength of cementitious composites in different curing media by incorporating ZrO2 nanoparticles

Influence of iron doped TiO₂ nanotubes on the hydration of tricalcium silicate

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Effect of TiO2 on the hydration of tricalcium silicate

Cited by 36 publications

References 3 publications

The effects of CuO nanoparticles on properties of self compacting concrete with GGBFS as binder

The effects of CuO nanoparticles on properties of self compacting concrete with GGBFS as binder

Improvement compressive strength of cementitious composites in different curing media by incorporating ZrO2 nanoparticles

Influence of iron doped TiO2 nanotubes on the hydration of tricalcium silicate

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Influence of iron doped TiO₂ nanotubes on the hydration of tricalcium silicate