Tensile Behaviour of Oil Bean Pod Shell and Mahogany Sawdust Reinforced Epoxy Resin Composite

Benjamin, Umurhurhu

doi:10.11648/j.ijsts.20190701.11

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…Recently, organic additives are been favoured over inorganic (synthesized) ones due to the problems of climate change and other related issues (Akpokodje et al, 2021b). Organic additives and admixture, being natural materials tend to be environmentally friendly, and readily/cheaply available; though some of their engineering properties may be lower than those of their manufactured counterparts (Daramola et al, 2018;Umurhurhu and Uguru, 2019). Sawdust has a lot of engineering applications ranging from a partial replacement for composite production (including concrete and sandcrete) to a bio-remediation enhancer (Uguru et al, 2020).…”

Section: Admixtures Usedmentioning

confidence: 99%

Effect of Green Admixtures on the Mechanical Properties of Concrete Composite

Akwenuke,

Edafiadhe

2023

AIJNAS

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The study was carried out to evaluate the suitability of organic admixture in concrete production. Six sets of concrete were made by partially replacing the fine aggregates (sand) and coarse aggregates (gravel) with 0, 5, 10, 15, 20 and 25% of sawdust and periwinkle shells respectively, in the presence of 0, 0.5, 1, 1.5, 2 and 2.5% cassava starch. The compressive strength and density of the six concrete groups were tested, in accordance with American Society for Testing and Materials (ASTM) International approved guidelines. Findings from the laboratory investigations indicated that the sawdust and periwinkle admixtures generally reduced the concrete compressive strength, as their proportion in the concrete increased from 0 to 25%; while the cassava tends to increase the concrete’s compressive strength. The compressive strength of the concrete declined from 25.2 to 10.3 MPa, 27.1 to 11.7 MPa, 30.7 to 13.6 MPa, 31.4 to 14.5 MPa, 30.9 to 14.2 MPa, and 28.4 to 13.8 MPa, after the incorporation of 25% sawdust and 25% periwinkle shells, as partial replacement for sand and gravels respectively, in the presence of 2.5% cassava starch. Furthermore, the results revealed that the compressive strength of the concrete increased non-linearly, as the cassava starch volume increased from 0 to 2.5%. However, the concrete set produced from 20% sawdust and 20% periwinkle shells was light-weight and its compressive strength was within the limit of 17 MPa recommended by Nigeria Industrial Standard (NIS) for light-weight concrete required for residential buildings construction. The findings of this study revealed that agricultural waste materials are suitable admixture materials in the concrete industry.

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Section: Admixtures Usedmentioning

confidence: 99%

Effect of Green Admixtures on the Mechanical Properties of Concrete Composite

Akwenuke,

Edafiadhe

2023

AIJNAS

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“…TS and tensile modulus (TM) generally rise as filler content does. 15,16 As filler loading rises, tensile strain tends to climb. 17 Additionally, the outcomes reveal that the sizing of the fillers can enhance the composites' mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…The tensile properties of composites have been discovered to be significantly influenced by the size and loading of fillers. TS and tensile modulus (TM) generally rise as filler content does 15,16 . As filler loading rises, tensile strain tends to climb 17 .…”

Section: Introductionmentioning

confidence: 99%

Elaeocarpus ganitrus (rudraksha) seeds as a potential sustainable reinforcement for polymer matrix composites

Irawan,

Siregar,

Cionita

et al. 2024

Polymer Composites

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Creating environmentally friendly materials like polymer matrix composites (PMCs) enhanced with natural fillers has grown in recent decades. It supports the United Nations sustainable development goals (SDGs) by reducing the reliance on non‐renewable resources, minimizing waste generation, and promoting sustainable land and water management practices. This investigation assesses the viability of employing Elaeocarpus ganitrus (rudraksha) seeds as a filler (rudraksha seed filler [RSF] in environmentally sustainable composite materials. Various loading concentrations and sizes of RSFs were incorporated by hand lay‐up into polymer epoxy resin (ER). The effect of filler on the mechanical properties of composites was observed. Thermal properties of RSF/epoxy composites were investigated using thermogravimetric analysis (TGA) and Fourier transform infrared (FTIR). The 10 wt% 100‐mesh filler had the maximum tensile strength (TS) at 42.30 MPa and flexural strength (FS) at 87.4 MPa, surpassing other filler sizes and loading concentrations. Meanwhile, the highest impact properties have been achieved with 20 wt% of RSF with 0.436 J. The results of this study highlight the significant impact of filler type and concentration on the mechanical properties of the material. These findings offer valuable insights that may be applied to various industrial contexts. Furthermore, incorporating 10% up to 30 wt% RSF in epoxy composites has brought more thermal stability than virgin epoxy. It revealed that the RSFs possess higher decomposition temperatures than the epoxy matrix. RSF has a potential sustainable reinforcement in polymer composites and holds great promise for addressing environmental challenges and aligning with several SDGs.Highlights Interest in eco‐friendly materials, like polymer composites with natural reinforcements, has been increasing in recent decades. Rudraksha sees filler is lightweight with low moisture, high carbon content, and some mineral elements. The addition of Rudraksha seed filler has enhanced the tensile, flexural, and impact properties of the composites. Rudraksha seed filler possess higher decomposition temperatures than the epoxy matrix. Rudraksha seed filler has a promising future as a sustainable friction material for automotive brake pads.

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“…Due to the increasing environmental problems (climate change, soil pollution, etc. ), the use of plant based (natural) fibres as replacement for replacing synthetic fibres in composites materials is gaining much popularity [6]. Plant based fibres are environmental friendly, cost effective, locally available, non-hazardous to human health and have robust specific strength and stiffness [7].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Performance of Cement Composites Reinforced with Raffia Palm Fabric

Isaac¹,

Benjamin²

2020

AJCBM

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The utilization of plant based (natural) fabrics as reinforcement in composite materials is fast growing in the engineering field, due to their environmental friendliness and appreciable mechanical properties. This study was carried out to evaluate some flexural properties (flexural strength and flexural deflection) and water absorption rate of raffia palm fabric reinforced cement composite samples. Ordinary Portland cement (grade 42.5N) was used as the binding material. Cement to fine aggregate (450 µm) mix ratio of 1:3 (by weight) was employed for the composite production, while a water to cement ratio (w/c) of 0.4 was adopted. For the purpose of this study, cement composite beams were reinforced with raffia palm fabrics in 1-fabric, 2-fabrics and 2-layer configuration. All the cement composite samples were prepared and tested in accordance to ASTM standard procedures. Results from the flexural tests showed that the flexural properties of the composite samples were highly influenced by the raffia palm fabric reinforcement. The composite samples reinforced with 2-layers generally had higher flexural properties, when compared to the results obtained from the composite reinforced with 2-fabrics and 1-fabrics reinforcement. The ultimate flexural deflection attained in the 2-fabrics and 2-layers configurations were comparable, but slightly highly in the 2-layers. A mean deflection of 6.12 mm was recorded in the composite reinforced with 2-layers, which was higher than the mean deflection of 5.56 mm recorded for the composite reinforced with 2-fabrics. For all cases, the unreinforced cement composite (control Samples) had the poorest flexural properties. In terms of the water absorption rate, the 2-layers fabrics composite samples had the highest water absorption rate when compared to the 1-layer fabric reinforced composite samples and the control samples. These results will be useful in the building industry and in the design and development of natural fabric reinforced concrete structures.

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Tensile Behaviour of Oil Bean Pod Shell and Mahogany Sawdust Reinforced Epoxy Resin Composite

Cited by 5 publications

References 9 publications

Effect of Green Admixtures on the Mechanical Properties of Concrete Composite

Effect of Green Admixtures on the Mechanical Properties of Concrete Composite

Elaeocarpus ganitrus (rudraksha) seeds as a potential sustainable reinforcement for polymer matrix composites

Mechanical Performance of Cement Composites Reinforced with Raffia Palm Fabric

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