Single and combined effects of nano-SiO2, nano-Al2O3 and nano-Fe2O3 powders on compressive strength and capillary permeability of cement mortar containing silica fume

Oltulu, Meral; Şahin, Remzi

doi:10.1016/j.msea.2011.05.054

Cited by 152 publications

(62 citation statements)

References 22 publications

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“…The most NMs, which has a positive impact on engineering properties of cement concrete is NS. The performance of amorphous NMs is mainly influenced by chemical reaction at interface, enhancing the properties of concrete [18][19][20]. Nanosilica (NS) is typically a highly effective PZM.…”

Section: Introductionmentioning

confidence: 99%

Chemical and Engineering Properties of Blended Cement Containing Micro- and Nano-silica

Ahmed¹,

Sabrah²,

Mohamed³

et al. 2017

AJCHE

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Nano-technology (NT) and nano-materials (NMs) has attracted considerable scientific attention, due to the new potential uses of nano-particles (NPs), which can change the concrete world. There is a great interest in replacing a long time used materials in concrete structure by NMs to improve the different properties of concrete. In this study, the hydration characteristics and microstructure of cement pastes and mortars with and without nano-silica (NS) were studied. Blended cement mix containing 10 mass, % silica fume (SF) was prepared, then the cement mix was partially replaced by NS up 1.5 mass, %. The results show that, NS increases the water of consistency and final setting time The values of chemically combined water, free lime, bulk density and compressive strength prove that, NS up to 1% seems to be an effective mineral additive for blending with OPC to improve its chemical and engineering properties. This is mainly attributed to that; NS behaves not only as filler to improve microstructure, but also as pozzolanic material (PZM). The formation of more hydrated silicates in presence of NS was confirmed by XRD, DTA, IR and SEM examinations. At 1.5 mass, % NS, the density and strength are reduced but still higher than those of 0.0 and 0.5% NS. Also, the results indicate that, the substitution of blended cement mix (OPC+10% SF) with 1 mass, % NS gives a reasonable hydration characteristics and improved engineering properties more than those of 0.0 and 0.5% NS at all hydration ages up to 90 days. Therefore, this level of NS is suggested to be the most suitable replacement level.

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Section: Introductionmentioning

confidence: 99%

Chemical and Engineering Properties of Blended Cement Containing Micro- and Nano-silica

Ahmed¹,

Sabrah²,

Mohamed³

et al. 2017

AJCHE

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“…Self-compacting concrete (SCC) is now widely developed and is a new type of concrete designed to bring many benefits to the properties of structural concrete [1][2][3][4][5]. What differentiates SCC from conventional concrete is the ability to be compacted by its own weight without the need for vibration [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…It is expected that the kinetics and the hydration of cement can be significantly influenced by nanoparticles [9]. Nano-SiO 2 is the most commonly used nano-powder, whereas silica fume and fly ash are the most widely used pozzolanic materials in the cement and concrete industry [3].…”

Section: Introductionmentioning

confidence: 99%

Single and combined effects of nano-SiO2, nano-Al2O3 and nano-TiO2 on the mechanical, rheological and durability properties of self-compacting mortar containing fly ash

Mohseni

Miyandehi

Yang

et al. 2015

Construction and Building Materials

229

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“…5. TiO 2 , Nano particles [50][51][52], Al 2 O 3 Nano particles [53][54][55], ZrO 2 Nano particles [55], Fe 2 O 3 Nano particle [53,[55][56][57], SiO 2 Nanoparticle [52,53,[56][57][58][59][60][61] and Nano clay [21][22][23][24], inclusion in to the cement and concrete specimens shows improved mechanical properties. 6.…”

Section: Metal Oxide Nano Particle Additionsmentioning

confidence: 99%

Usage of Carbon nanotubes and nano fibers in cement and concrete: A review

A¹,

Shanmugasundaram²

2017

IJET

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Abstract-Carbon Nanotubes (CNTs) are basic carbon consisting of curved graphene layer which consists of a single layer of atoms in a combined hexagonal structure. After plenty of years several characterization of the carbon Nanotubes has become very popular in various applications in civil engineering. Carbon Nanotubes shows good results in terms of mechanical properties of cement mortar when added to it. Literature has showed that carbon Nanotubes can be used in the manufacture of the concrete and the cement pastes. This paper represents the summary of the various research works on the usage of the carbon nanotubes in cement paste, mortars and concrete.

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Single and combined effects of nano-SiO2, nano-Al2O3 and nano-Fe2O3 powders on compressive strength and capillary permeability of cement mortar containing silica fume

Cited by 152 publications

References 22 publications

Chemical and Engineering Properties of Blended Cement Containing Micro- and Nano-silica

Chemical and Engineering Properties of Blended Cement Containing Micro- and Nano-silica

Single and combined effects of nano-SiO2, nano-Al2O3 and nano-TiO2 on the mechanical, rheological and durability properties of self-compacting mortar containing fly ash

Usage of Carbon nanotubes and nano fibers in cement and concrete: A review

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