Stress and Strain Behavior of Confined Lightweight Concrete using Sand Coated Polypropylene Coarse Aggregate

Purnomo, Heru; Baskoro, Heru; Muslim, Fadhilah

doi:10.14716/ijtech.v12i6.5195

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…However, PP is known as a polymer that is susceptible to the use of high temperatures and does not have antistatic properties. Besides that, PP is harmful to the environment due to its non-degradable nature [1,2], but PP is recyclable [3]. In this work, Antistatic bio-nano composites (AS-BNC) reinforced by mono-diacylglycerols (M-DAG) as an antistatic agent [4] and cellulose nanocrystals (CNC) as a reinforcement [4][5][6][7][8][9], where PP serves as the matrix.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of polypropylene-based antistatic bio-nano composites reinforced with mono-diacylglycerols and cellulose nanocrystals

Setyaningsih,

Sarfat,

Fahma

et al. 2024

Mater. Res. Express

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Polypropylene (PP) is known as a polymer without antistatic properties that is susceptible to the use of high temperatures. Therefore, to improve the thermal and antistatic properties of PP, it is necessary to modify PP to antistatic bio-nanocomposites with mono-diacylglycerols (M-DAG) as an antistatic agent and cellulose nanocrystals (CNC) as a reinforcement. This research aimed to characterize the electrical resistivity and thermal properties of PP-based antistatic bio-nanocomposites reinforced with M-DAG and CNC at different concentrations of CNC (0–5%), and 2% of M- DAG, compared to pure PP. The results showed that the addition of 2% CNC (AS-BNC-2) gave the melting temperature of 125.0oC, which was higher than pure PP of 118.3oC. The thermal stability of the antistatic bio-nano composites with 3% CNC (AS-BNC-3) was 457.10oC, which was higher than pure PP of 441.56 oC. The electrical resistivity of the antistatic bio-nano composites from all treatments was still in the range of the antistatic category of 1010 – 1012 Ω/sq. The melting temperature and thermal stability of bio-nano composites were higher than those of pure PP and they have the antistatic properties. This indicates the potential application of these materials in the electronics devices and packaging industries.

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Section: Introductionmentioning

confidence: 99%

Characteristics of polypropylene-based antistatic bio-nano composites reinforced with mono-diacylglycerols and cellulose nanocrystals

Setyaningsih,

Sarfat,

Fahma

et al. 2024

Mater. Res. Express

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“…The utilization of expanded polystyrene (EPS) in concrete mixtures has been investigated in various research studies. Research has shown that the inclusion of expanded polystyrene can reduce the density of concrete, making it lightweight and providing potential benefits in construction applications (Gamal et al, 2023;Purnomo, Baskoro, and Muslim, 2021;Kan and Demirboga, 2009). The thermal insulation properties of polystyrene concrete have also been investigated, indicating its potential to enhance energy efficiency in buildings (Chung, Elrahman, and Stephan, 2018).…”

Section: Introductionmentioning

confidence: 99%

Digital Image Correlation for the Determination of Mechanical Properties of Concrete with Modified Expanded Polystyrene

Sjah,

Handika,

Adnanta

et al. 2024

IJTech

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Modified Expanded Polystyrene (MEPS) has emerged as a promising material obtained by heating and shredding Expanded Polystyrene (EPS) to enhance its specific gravity and strength. This study investigates the suitability of MEPS as a partial replacement for coarse and fine aggregates in non-structural lightweight concrete. The substitution levels of MEPS were set at 10%, 20%, and 25% of the total aggregate volume. Cylindrical concrete specimens (10 x 20 cm) and concrete cubes (15 x 15 x 15 cm) were used for the experimentation. Ultrasonic Pulse Velocity (UPV) and Digital Image Correlation (DIC) were performed to evaluate the mechanical properties of the concrete under compressive stress test. Through DIC, the approach to obtain the concrete's properties, including compressive strength, stiffness, elastic modulus, and poisson's ratio, were obtained. The results demonstrated that the concrete mixture with 20% MEPS substitution exhibited the most favorable performance. Overall, the use of MEPS as a replacement for aggregates in non-structural lightweight concrete shows promise for optimizing the material's mechanical properties. This study provides valuable insights into sustainable construction practices and contributes to the ongoing research in utilizing innovative materials for enhancing concrete performance.

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“…The aggregates in cementitious composites originate from quarries or through stone crushing, which is basically recyclable (Ashadi et al, 2015;Turu'allo, 2015;Purnomo et al, 2021). Two most commonly used recycle aggregate, i.e., recycled concrete or pavingoriginated aggregates, supports the sustainability of the aggregate's lifecycle.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis of Reclaimed Asphalt Aggregates in Mortar

Setiadji¹,

Wibowo²,

Jonkers³

et al. 2022

IJTech

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Asphalt pavement consists of aggregates resulting in a waste material at end of its life. The aggregates can be reused as basic material for asphalt or cementitious binding agents. In both scenarios, the recycled aggregates should provide a good bond with the binder to achieve strength. This study focuses on reusing recycled asphalt aggregates (RAA) in mortar. The major weakness of RAA is the thin oily film originating from the asphalt residue, weakening the bond with cement. The pyrolysis method is accessed in an attempt to overcome this weakness. Three scenarios were investigated; the use of virgin aggregates (VA), RAA, and pyrolysis recycled asphalt aggregate (PRAA) as constituent in mortar. All variables were set a constant except for the aggregate type, the VA mortar function as controlling element. This research is methodologically based on experimental data conducted in the laboratory, while aggregate samples were taken from the field. To analyze the influence of pyrolysis to the aggregate-to-cement bond behaviour, qualitative and quantitative data were collected. The quantitative data were the mechanical properties, the mortar tensile, and compression strength. The qualitative data were obtained from scanning electron microscope readings to visually observe the aggregate surface roughness and voids, including the aggregates cross-section and pre-existing micro-cracks in the aggregate-to-cement interface. Supporting data were the aggregates' abrasion rate and absorption. The RAA resulted in a significant mortar strength decrease. This conclusion was supported by the findings of pre-existing cracks in the interfacial transition zone. The pyrolysis method improved the compression strength but negligibly affected the tensile behavior. The compression and tensile strength increased as a function of time for both RAA and PRAA, and a strength convergence was reached at 28 days. The PRAA is considered an option for reuse in mortar, supporting nature conservation.

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Stress and Strain Behavior of Confined Lightweight Concrete using Sand Coated Polypropylene Coarse Aggregate

Cited by 3 publications

References 11 publications

Characteristics of polypropylene-based antistatic bio-nano composites reinforced with mono-diacylglycerols and cellulose nanocrystals

Characteristics of polypropylene-based antistatic bio-nano composites reinforced with mono-diacylglycerols and cellulose nanocrystals

Digital Image Correlation for the Determination of Mechanical Properties of Concrete with Modified Expanded Polystyrene

Pyrolysis of Reclaimed Asphalt Aggregates in Mortar

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