Impact strength of metakaolin ferrocement

Yerramala, Amarnath; Chandurdu, C. Rama; Desai, V. Bhaskar

doi:10.1617/s11527-014-0469-2

Cited by 7 publications

(4 citation statements)

References 25 publications

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“…MK promotes homogeneous dispersion and enhances the bonding of steel fibers in cementitious matrix, thus improving the flexural strength of reinforced mortar [66]. The flexural and impact strengths rise with the MK content up to 15%; however, 10% MK maximizes the enhancement, which is about 34% [141,142]. In another study, the mortar made with a w/b ratio of 0.30 and 20% MK gained 120 MPa compressive strength at 28 days, which was 21% higher than the strength of the control mortar [67].…”

Section: Effects On Strengthmentioning

confidence: 99%

Utilization of By-Products and Wastes as Supplementary Cementitious Materials in Structural Mortar for Sustainable Construction

et al. 2020

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Rapid growth in industrial development has raised the concern of proper disposal of the by-products generated in industries. Many of them may cause serious pollution to the air, land, and water if dumped in open landfills. Agricultural and municipal wastes also cause environmental issues if not managed properly. Besides, minimizing the carbon footprint has become a priority in every industry to slow down global warming and climate change effects. The use of supplementary cementitious materials (SCMs) obtained from agricultural, industrial, municipal, and natural sources can decrease a significant amount of fossil fuel burning by reducing cement production and contribute to proper waste management. Also, SCMs can enhance desirable material properties like flowability, strength, and durability. Such materials may play a big role to meet the need of modern time for resilient construction. The effective application of SCMs in cement-based materials requires a clear understanding of their physical and chemical characteristics. Researchers studied how the flowability, strength, and durability properties of structural mortar change with the replacement of cement with different SCMs. Various experiments were conducted to examine the behavior of structural mortar in extreme conditions (e.g., high temperature). Many scholars have attempted to improve its performance with various treatment techniques. This article is an attempt to bring all the major findings of the recent relevant studies together, identify research gaps in the current state of knowledge on the utilization of SCMs in structural mortar, and give several recommendations for further study. The available results from recent studies have been reviewed, analyzed, and summarized in this article. A collection of the updated experimental findings will encourage and ease the use of various by-products and wastes as SCMs in structural mortar for sustainable construction.

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Section: Effects On Strengthmentioning

confidence: 99%

Utilization of By-Products and Wastes as Supplementary Cementitious Materials in Structural Mortar for Sustainable Construction

et al. 2020

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“…Flexural and impact strength of mortar rises with a rise in Metakaolin (MK) content up to 15%. 10% replacement maximizes the enhancement, which is about 34% [11,12]. Natural pozzolan (NP) induced reductions of 90 days' compressive strength by 9, 11 and 17% for 15, 20 and 25% replacement, respectively.…”

Section: Strengthmentioning

confidence: 99%

Recent trends in development of self‐flowing mortar incorporating supplementary cementitious materials

Sakir

Kaish

Mutalib

2016

Proceedings of 2nd International Electronic Conference on Materials

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Self-flowing mortar (SFM) is being popular in recent time. Its' easy-placement nature makes it suitable for narrow or congested reinforced places. To comply with modern-age needs, many supplementary cementitious materials (SCMs) are gaining importance nowadays. Using industrial and agricultural wastes as SCM, ensures proper management of many hazardous materials and saves cost as well. Incorporation of these two techniques can offer cost-effective and environment-friendly solutions to many construction problems. Many researchers studied the effect of different SCMs on mortar properties in recent years. The objective of this study is to summarize the findings of recent experiments. This will help the experts of this field to optimize their mix design easily, as well as, the researchers to find the research gap and determine the direction of their future studies.

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“…On the other hand, the impact strength of the 2 mm diameter welded wire grid and the fiber-reinforced panel is 18% higher than the 3 mm diameter welded wire grid-reinforced ferrocement panel. In a study conducted by Yerramala et al, 14 the impact strength of ferrocement panels was investigated by varying the number of grid layers and metakaolin percentages. The results indicated that an optimum content of 10% metakaolin was necessary to achieve the maximum impact strength.…”

Section: Introductionmentioning

confidence: 99%

Structural Performance of Ferrocement Panels under Low- and High-Velocity Impact Load

Sathe,

Kangda,

Khan

et al. 2023

ACS Omega

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The primary objective of this experimental study is to examine the response and energy absorption capacity of ferrocement panels exposed to low-and high-velocity impact loads. The panels are reinforced with two different types of mesh layers, namely, welded wire grid (WWG) and expanded wire grid (EWG), with varying percentages of steel fibers (SF). The ferrocement panel system is made up of cement mortar reinforced with 0−2% SF with an increment of 1% and wire grid layers arranged in three different layers 1, 2, and 3. A consistent water−cement ratio (w/c) of 0.4 is maintained during mortar preparation, and all panels are subjected to a 28-day curing process in water. The study utilized square-shaped ferrocement panels measuring 290 mm × 290 mm × 50 mm. The panels are exposed to repeated impact blows from a 2.5 kg falling mass dropped from a height of 0.80 m. The count of blows necessary to commence the first crack formation and the cause of ultimate failure are recorded for each panel. The study reports that an increase in SF content and the number of wire grid layers increased the number of blows needed for both the first crack and the ultimate failure. In the high-velocity impact test, 7.62 mm bullets are fired at the panels from a distance of 10 m with a striking velocity of 715 m/s. The study observed and analyzed the extent of spalling, scabbing, and perforation. The results showed that an increase in fiber content and the number of wire grid layers led to a decrease in the area of scabbing and spalling compared with the control specimens. It was also possible to see the mode of failure and crack pattern for impacts with low and high velocities.

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Impact strength of metakaolin ferrocement

Cited by 7 publications

References 25 publications

Utilization of By-Products and Wastes as Supplementary Cementitious Materials in Structural Mortar for Sustainable Construction

Utilization of By-Products and Wastes as Supplementary Cementitious Materials in Structural Mortar for Sustainable Construction

Recent trends in development of self‐flowing mortar incorporating supplementary cementitious materials

Structural Performance of Ferrocement Panels under Low- and High-Velocity Impact Load

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