Investigation of normal concrete properties with the addition of micro reinforcement

,; Yusra, Andi; Meliana, Hesti; ,; Opirina, Lissa; ,; Satria, Andrisman; ,

doi:10.17515/resm2023.693ma0218tn

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…1. Compound functional group test results on non-pozzolan concrete by FTIR [27] Figure 1 displays the results of FTIR testing on concrete without using pozzolan, which only reveals two chemical bonds: O-H and CH2. This limitation arises because non-pozzolan concrete involves solely a chemical reaction between the cement material and water, with no other chemical reactions occurring.…”

Section: Introductionmentioning

confidence: 99%

“…This reinforcement enhances strength, resistance to cracking, and overall mechanical performance. Commonly used fibres include polypropylene, glass, steel, or other types that provide additional support to concrete, [27][28][29]. Overall, the aim of the study was to investigate factors that can affect concrete strength and then optimize them.…”

Section: Introductionmentioning

confidence: 99%

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Optimizing concrete strength through pozzolan variation, heat treatment, and alkaline solution modulation: A comprehensive study

Yusra,

Jasmi,

Simatupang

et al. 2024

Res. Eng. Struct. Mat.

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The study aimed to assess concrete characteristics and mechanical properties by incorporating pozzolan variations, heat treatments, and alkaline solution molarities. It focused on identifying the optimal pozzolan addition percentage for achieving maximum concrete strength. Specimens underwent heat treatments at 60°C, 90°C, and exposure to alkaline solutions with molarity levels of 6M for rice husk ash and 8M for palm shell ash (PSA). Compressive strength testing at 28 days revealed the most optimal strength of 25.80 MPa in concrete without heat treatment, with 10% Palm Shell Ash pozzolan addition. Non-pozzolan concrete subjected to 1 day of 90°C heat treatment exhibited a strength of 21.99 MPa. The lowest strength observed in concrete without heat treatment, with 15% rice husk ash, resulting in 12.50 MPa. FTIR analysis focused on the chemical aspects of concrete, particularly changes in molecular structure due to different parameters. Composite concrete samples incorporating rice husk ash pozzolan and varying alkaline solution concentrations showed negligible differences. Further analysis found that mixing concrete with 15% Palm shell ash without heat treatment resulted in optimal compressive strength of 22.60 MPa, highlighting PSA's potential in increasing concrete strength. The research also emphasized the effect of temperature on concrete strength, with non-pozzolan concrete heated at 90°C for 1 day showing decreased strength. Comparison of pozzolan influence revealed that Rice Husk Ash tended to reduce concrete strength, especially at higher percentages, indicating a different response to pozzolan types. FTIR analysis identified chemical components in Rice Husk Ash (RHA) pozzolan concrete, laying the foundation for understanding pozzolan-concrete matrix interaction. However, further analysis needed for accurate interpretation of FTIR results and understanding the mechanism behind pozzolan's influence on concrete strength.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimizing concrete strength through pozzolan variation, heat treatment, and alkaline solution modulation: A comprehensive study

Yusra,

Jasmi,

Simatupang

et al. 2024

Res. Eng. Struct. Mat.

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Effect of the Addition of Natural Fibers on the Mechanical Properties of Concrete

Yusra,

Aulia,

Hasan

et al. 2024

E3S Web Conf.

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The use of rattan and bamboo fibers increases the compressive strength, tensile strength and improves the ductility of concrete. Shell ash also contains pozzolanic compounds that can improve the properties of concrete. In this study, rattan and bamboo were used as concrete fibers and seashell ash was used as filler. The purpose of this study is to measure the compressive and tensile strength of concrete. In this study, rattan and bamboo fibers were added to the concrete mix with a mix design 25MPa. The additive variation is 0%, 0.5%, 1%, 1.5%, 2%. The results showed that the average compressive strength at 28 days was 0.26.29 MPa, 0.5, 19.71 MPa, 1.21.69 MPa, 1.5, 24.72 MPa and 2.18 MPa. Accordingly, the average tensile strength after 28 days was 0.736 MPa, 2,359 MPa, 2,312 MPa, 2.453 MPa and 2,595 MPa. These results show that the addition of rattan and bamboo fibers to concrete can increase the crack resistance of concrete, while the optimal increase in compressive strength with the addition of rattan fiber is achieved only with the change of 1.5%. This indicates that the addition of 1.5% natural fibers improves the tensile strength of concrete.

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Influence of Using Bamboo Reinforcement Bar and Fiber on Mechanic Beams Behavior

Yusra

2023

CEBEL

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High quality concrete has a low enough porosity value to achieve high density. The purpose of this study was to measure the performance of high-quality concrete blocks by using bamboo reinforcement and bamboo fiber as additional materials. The use of super-liquefying additives from fly ash and palm kernel shells, and high-quality low-grade FAS Tilapia Concrete enhances the concrete experience. Based on (ACI, 2014), it was classified as high-quality concrete with a compressive strength greater than 41.4MPa. Reinforced concrete is a structure made by mixing coarse aggregate, fine aggregate, water, cement, and steel aggregate. Fiber concrete is concrete in which fibers evenly mixed with concrete mortar. The fibers in this concrete serve to retard cracking and reduce brittleness, making the concrete thinner than regular concrete. Using fibers up to 1.5 µm in high-quality reinforced concrete blocks, the maximum deflection reached 23,200 mm for LVDT 5, 0.000 mm for LVDT 3 and LVDT 4, and 37.565 mm. As a result, no shear cracks occurred, and only flex cracks occurred. This is because bending stiffeners are weaker than sliding bones. To increase the flexural strength of bamboo reinforcing blocks, the amount of tensile and compressive bamboo reinforcement should increase to double the amount of reinforcement used in this study.

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Investigation of normal concrete properties with the addition of micro reinforcement

Cited by 3 publications

References 13 publications

Optimizing concrete strength through pozzolan variation, heat treatment, and alkaline solution modulation: A comprehensive study

Optimizing concrete strength through pozzolan variation, heat treatment, and alkaline solution modulation: A comprehensive study

Effect of the Addition of Natural Fibers on the Mechanical Properties of Concrete

Influence of Using Bamboo Reinforcement Bar and Fiber on Mechanic Beams Behavior

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