Mechanical and Microstructural Properties of Composite Mortars with Lime, Silica Fume and Rice Husk Ash

Malathy, R.; Shanmugam, Ragav; Chung, Ill‐Min; Kim, Seung Hyun; Prabakaran, Mayakrishnan

doi:10.3390/pr10071424

Cited by 22 publications

(12 citation statements)

References 41 publications

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“…Based on the XRD results, it is observed that the obtained silica structure is generally amorphous, which is related to the rapid condensation of volatile silica and surface tension silicon in the phase transition 27 . The broad peak obtained at an angle of about 22° indicates amorphous silica with nanometer size, and this result was compared with similar articles, which all showed the same result 28,29 …”

Section: Resultsmentioning

confidence: 68%

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Synthesis and effect of using silica fume particles on shear properties of basalt fibers‐epoxy composites

Azizi,

Eslami‐Farsani,

Vaezi

et al. 2023

Polymer Composites

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In this study, the effect of the addition of silica particles modified with silane agent on the mechanical properties of basalt fibers‐epoxy composites were studied with the interlayer shear strength (ILSS) test. In the first stage, silica fume particles were synthesized using the sol‐gel method and surface modified using tri mercaptopropyl trimethoxy silane agent. The results of the characterization showed that the synthesized powder is nanometric scale, amorphous and high purity. The surface‐modified silica fume particles (0, 2, 4, 6 wt.%) were distributed inside the epoxy matrix using a mechanical stirrer and ultrasonic waves. The hand lay‐up method was used to fabricate composite samples, then the effect of adding these particles on the mechanical properties of basalt fibers‐epoxy composites under interlayer shear loads was studied. The results of the research indicated that the addition of silica fume particles has a significant effect on improving the mechanical properties of basalt fibers‐epoxy composites, and the greatest improvement in mechanical properties was achieved by adding 4 wt.% of modified silica fume particles. In the case of composites without SF particles, the shear strength was 34 MPa, which was increased to 40 MPa by adding 4 wt.% of SF particles (about 20% improvement). On the other hand, results demonstrated that the optimal distribution of silica fume particles within the polymer matrix performs an impressive role in improving the mechanical response of composite samples.Highlights The use of silica fume in the polymer composite is one of the research innovations. Silica fume is a super‐fine spherical powder that is collected as a by‐product. The silane is used to better distribute and optimal interaction of the silica fume in epoxy. Sol‐gel is one of the methods to synthesis of silica fume. ILSS test was done to investigate the strength of the interface of basalt fibers and epoxy.

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Section: Resultsmentioning

confidence: 68%

“…27 The broad peak obtained at an angle of about 22 indicates amorphous silica with nanometer size, and this result was compared with similar articles, which all showed the same result. 28,29 F I G U R E 1 The size distribution of synthesized silica particles in, (A) 250,000, (B) 150,000 times magnifications.…”

Section: Xrd Analysismentioning

confidence: 99%

Synthesis and effect of using silica fume particles on shear properties of basalt fibers‐epoxy composites

Azizi,

Eslami‐Farsani,

Vaezi

et al. 2023

Polymer Composites

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“…Similar conclusion was also drawn in a study where the density of RHA concrete found same for all replacement level (Ephraim et al, 2012). Lime based concrete also exhibited the (Malathy et al, 2022). However, some contradictions in the results were also noticed due to fact that there are various types of lime and their properties differ significantly.…”

Section: Density Testmentioning

confidence: 88%

A Review on Partial Replacement of Cement in Concrete by Three Supplementary Materials

et al. 2022

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This paper explores the consequence of replacing cement by fly ash, rice husk ash and lime in concrete. For widespread use of these supplementary materials, it is important to ensure the quality of resultant concrete. In this paper literature related with workability, density, compressive strength, flexural strength and splitting tensile strength are analyzed. Main advantages and drawbacks of using these materials in terms of engineering properties are mentioned. Another aim of this review is to identify major research needed in this field to use these materials worldwide given that concrete is the most extensively used man-made material. IUBAT Review—A Multidisciplinary Academic Journal, 5 (1): 54-67

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“…The scale range used in the SEM analysis was 5 µm with the resolution of 5000x. The samples were examined in the SEM instrument [ 46 , 47 , 48 , 49 , 50 ]. After the flexural strength test, mortar bonded with the fabrics was taken out from the ferrocement composites.…”

Section: Methodsmentioning

confidence: 99%

Study on Flexural Behaviour of Ferrocement Composites Reinforced with Polypropylene Warp Knitted Fabric

Rameshkumar¹,

Malathy²,

Chandiran³

et al. 2022

Polymers

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Ferrocement is a cost-effective construction material used in the low-cost constructions. It is produced with the combination of cement mortar with closely spaced wire mesh known as chicken wire mesh. Ferrocement process eliminates coarse aggregates when compared to reinforced concrete thus makes the process simple. This paper deals with the influence of various characteristics of warp knitted fabric on the flexural properties of ferrocement composites. Ferrocement composites have a wide range of applications in the construction industry and it has some limitations due to the durability issues. Among the various durability issues, corrosion is one of the main issues to be addressed to enhance the long-term service life of the ferrocement composites. The idea of using non-metallic mesh to eliminate the corrosion problem is discussed in this paper. In this experiment, warp knitted fabric reinforced ferrocement composites were produced using polypropylene warp knitted fabrics. This paper deals with the flexural properties of ferrocement composites made of warp knitted fabric coated with expoxy. This paper deals with the flexural properties of ferrocement composites made of warp knitted fabric coated with expoxy. These composites were analyzed for their flexural strength, energy absorption and ductile property. The variables in the experiment are filament thickness, warp knitted structure and number of layers in the composites. Experimental results proved that the replacement of chicken mesh wire by warp knitted fabrics has an impact in the flexural properties of the composites and the effect of variables in the experiment set up has been analyzed. There is an imporvement of 200% is observed in the first crack load and 120% improvement in the ultimate load of the warp knit fabric reinforced composite compared to control sample. Experimental results proved that there is an increase in flexural strength of ferrocement composites made up with warp knitted fabrics. Microstructure studies like SEM and EDX on ferrocement laminates confirmed good bonding between the mortar mix and warp knitted fabrics.

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Mechanical and Microstructural Properties of Composite Mortars with Lime, Silica Fume and Rice Husk Ash

Cited by 22 publications

References 41 publications

Synthesis and effect of using silica fume particles on shear properties of basalt fibers‐epoxy composites

Synthesis and effect of using silica fume particles on shear properties of basalt fibers‐epoxy composites

A Review on Partial Replacement of Cement in Concrete by Three Supplementary Materials

Study on Flexural Behaviour of Ferrocement Composites Reinforced with Polypropylene Warp Knitted Fabric

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