A Comparative Study on the Influence of Nano and Micro Particles on the Workability and Mechanical Properties of Mortar Supplemented with Fly Ash

Seifan, Mostafa; Mendoza, Shaira; Berenjian, Aydin

doi:10.3390/buildings11020060

Cited by 10 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The combination of MS and MK has a positive impact on the strength and durability of concrete, and the findings revealed that it can lead to an increase in the water demand [ 45 ]. Moreover, the presence of NS in the ternary binder consisting of OPC-MK-NS increased the consistency ( Fig 2A ).…”

Section: Resultsmentioning

confidence: 99%

“…Interestingly, it was found that when MS was added as replacement of cement to make the ternary binder along with MK, the water demand increased. The combination of MS and MK has a positive impact on the strength and durability of concrete, and the findings revealed that it can lead to an increase in the water demand [45]. Moreover, the presence of NS in the ternary binder consisting of OPC-MK-NS increased the consistency (Fig 2A).…”

Section: Fresh Propertiesmentioning

confidence: 91%

“…The chemical composition of SCMs determines whether they are self-cementing, pozzolanic, or both [ 43 , 44 ]. These materials can be acquired from industrial wastes, including fly ash (FA) [ 45 ], silica fume (SF) or microsilica (MS) [ 46 ], metakaolin (MK) [ 47 ], slag [ 48 ], nanosilica (NS), and even an agricultural waste, such as sugarcane bagasse ash [ 49 ]. Researchers have utilized various types of SCMs to improve the characteristics of cement-based structures [ 50 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of pozzolanic addition on strength and microstructure of metakaolin-based concrete

Bansal,

Bahrami

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

The intent of this study is to explore the physical properties and long-term performance of concrete made with metakaolin (MK) as a binder, using microsilica (MS) and nanosilica (NS) as substitutes for a portion of the ordinary Portland cement (OPC) content. The dosage of MS was varied from 5% to 15% for OPC-MK-MS blends, and the dosage of NS was varied from 0.5% to 1.5% for OPC-MK-NS blends. Incorporation of these pozzolans accelerated the hardening process and reduced the flowability, consistency, and setting time of the cement paste. In addition, it produced a denser matrix, improving the strength of the concrete matrix, as confirmed by scanning electron microscopy and X-ray diffraction analysis. The use of MS enhanced the strength by 10.37%, and the utilization of NS increased the strength by 11.48% at 28 days. It also reduced the penetrability of the matrix with a maximum reduction in the water absorption (35.82%) and improved the resistance to the sulfate attack for specimens containing 1% NS in the presence of 10% MK. Based on these results, NS in the presence of MK can be used to obtain cementitious structures with the enhanced strength and durability.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Fresh Propertiesmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of pozzolanic addition on strength and microstructure of metakaolin-based concrete

Bansal,

Bahrami

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…This can be attributed to the high specific surface of them, which absorbs water and contributes to increased water demand to maintain mixing and control the concrete's workability. (5) M. Seifan et al (26) observed that workability of all dosages of Al₂O₃ samples was just slightly a lesser than workability of the samples without Al₂O₃ due to high ratio of surface area to volume. M. Khopade et al (27) reported that the mixes that contained Al₂O₃ had a lower slump than the controlled specimens owing to the softness of the Al₂O₃, which enhanced the properties of the concrete like filling, bonding, and evenness and also reduced the diffusion diameter of the concrete in slump flow.…”

Section: Results Of Fresh Propertiesmentioning

confidence: 99%

The Influence of Calcined Alumina Additives on the Mechanical Properties and Chloride-Induced Corrosion of Blended Concrete

AL-Anssari,

AL-Ameeri

2024

Salud, Ciencia y Tecnología - Serie de Conferencias

View full text Add to dashboard Cite

The development and use of blended concrete systems have been growing rapidly in the construction industry, mainly due to cost savings, energy savings, and sustainability. This paper represents the influence of Calcined Alumina (AC) on the strength and chloride-induced corrosion of concrete. AC, at various contents, was appropriately added as a partial replacement for ordinary Portland cement (OPC) in blended mixtures (3.5 and 7% by mass of OPC). To find out its impact on the fresh properties (slump flow), hardened properties (compressive and splitting strength), and durability properties (water absorption at, rapid chloride migration coefficient, chloride penetration resistance, and corrosion resistance) depending on curing ages. Moreover, it investigates the effect of crack width on chloride penetration and corrosion rate. The results reveal that the addition of AC has a positive impact on concrete. Whereas obtained a decrease in the workability of concrete and an increase in the water demand. On the other hand, a significant increase in the compressive strength, tensile strength, and durability properties of concrete was recorded. Also, the replacement of cement with 7% AC achieved the highest value of compressive strength (63.67 MPa) in 90 days. Also, improvements in chloride penetration resistance and corrosion rate. The presence of Al₂O₃ reduces the ingress of chloride ions into concrete considerably, leading to the conclusion that the decrease in crack width is due to a decrease in corrosion steel products and the chloride penetration concentration and depth.

show abstract

“…An investigation of the effect of micro-Al 2 O 3 [MA] and nano-Al 2 O 3 [NA] on the mechanical characteristics and durability of a fly ash mortar [FA] was conducted by Seifan et al (26). A portion of the cement in the mortar was substituted with MA or NA at the amounts of 0%, 5%, 10%, and 15%.…”

Section: Ogólna Technika Przygotowania Nanocząstek Feni 3 Mnpmentioning

confidence: 99%

Effects of FeNi3/SiO2 /GO nanoparticles on the mechanical and durability properties of concrete

Shandiz,

Honarbakhsh,

Zhiani

et al. 2024

Cement Wapno Beton

View full text Add to dashboard Cite

Recent research in the construction industry supports the idea that nanomaterials can partially replace cement. A recently suggested material as a suitable substitute for cement in concrete is graphene oxide nanocomposite. As a result, in this laboratory study, FeNi3/SiO2/GO nanoparticles [NFSG] and SiO2 nanoparticles [NS] partially replace cement by 1, 2, and 3% by mass after their synthesis and confirmation by FT-IR, SEM and TEM analyses and their impact on the mechanical and durability characteristics of the specimens at ages 7, 28, and 90 days were examined. The findings imply that the designs with the highest mechanical properties tests produced the best results. These designs used 2% of NFSG and 2% of NS substituting cement. After 28 days, NFSG-containing concrete increased compressive strength by 15% and splitting tensile strength by 13%. FTIR spectra demonstrated that specimen containing 2% of NFSG produced more C-S-H [calcium silicate hydrate] gel, improving the microstructure of concrete and subsequently its properties.

show abstract

A Comparative Study on the Influence of Nano and Micro Particles on the Workability and Mechanical Properties of Mortar Supplemented with Fly Ash

Cited by 10 publications

References 24 publications

Influence of pozzolanic addition on strength and microstructure of metakaolin-based concrete

Influence of pozzolanic addition on strength and microstructure of metakaolin-based concrete

The Influence of Calcined Alumina Additives on the Mechanical Properties and Chloride-Induced Corrosion of Blended Concrete

Effects of FeNi3/SiO2 /GO nanoparticles on the mechanical and durability properties of concrete

Contact Info

Product

Resources

About