Study on Durability Properties of Coconut Shell Concrete with Coconut Fiber

Sekar, Anandh; Kandasamy, Gunasekaran

doi:10.3390/buildings9050107

Cited by 33 publications

(17 citation statements)

References 16 publications

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“…When tensile stresses are formed or tension zones are detected, steel bars are often used to compensate in conventional concrete, also known as reinforced concrete. Fibers are introduced into concrete to boost its essential tensile capacity, resulting in fiber-reinforced concrete, a particular kind of concrete (FRC) [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Glass Fibers Reinforced Concrete: Overview on Mechanical, Durability and Microstructure Analysis

et al. 2022

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Prior studies in the literature show promising results regarding the improvements in strength and durability of concrete upon incorporation of glass fibers into concrete formulations. However, the knowledge regarding glass fiber usage in concrete is scattered. Moreover, this makes it challenging to understand the behavior of glass fiber-reinforced concrete. Therefore, a detailed review is required on glass fiber-reinforced concrete. This paper provides a compressive analysis of glass fiber-reinforced composites. All-important properties of concrete such as flowability, compressive, flexural, tensile strength and modulus of elasticity were presented in this review article. Furthermore, durability aspects such as chloride ion penetration, water absorption, ultrasonic pulse velocity (UPV) and acid resistance were also considered. Finally, the bond strength of the fiber and cement paste was examined via scanning electron microscopy. Results indicate that glass fibers improved concrete’s strength and durability but decreased the concrete’s flowability. Higher glass fiber doses slightly decreased the mechanical performance of concrete due to lack of workability. The typical optimum dose is recommended at 2.0%. However, a higher dose of plasticizer was recommended for a higher dose of glass fiber (beyond 2.0%). The review also identifies research gaps that should be addressed in future studies.

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Section: Introductionmentioning

confidence: 99%

Glass Fibers Reinforced Concrete: Overview on Mechanical, Durability and Microstructure Analysis

et al. 2022

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“…Steel bars are often employed when tensile stresses are created or tension zones are discovered to overcome this deficit in traditional concrete, which is commonly referred to as reinforced cement concrete (RCC). Fibers are added to concrete to increase its inherent tensile strength, resulting in a specific form of concrete known as fiber reinforced concrete (FRC) [ 1 , 2 , 3 , 4 ]. It is desirable that beams be ductile rather than brittle [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Durability Performance of Coconut Fiber Reinforced Concrete: A State-of-the-Art Review

Ahmad¹,

Majdi

Al-Fakih

et al. 2022

Materials

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The push for sustainability in the construction sector has demanded the use of increasingly renewable resources. These natural fibers are biodegradable and non-toxic, and their mechanical capabilities are superior to those of synthetic fibers in terms of strength and durability. A lot of research recommends coconut fibers as an alternative to synthetic fibers. However, the knowledge is scattered, and no one can easily judge the suitability of coconut fibers in concrete. This paper presents a summary of research progress on coconut fiber (natural fibers) reinforced concrete. The effects of coconut fibers on the properties of concrete are reviewed. Factors affecting the fresh, hardened, and durability properties of concrete reinforced with coconut fiber are discussed. Results indicate that coconut fiber improved the mechanical performance of concrete due to crack prevention, similar to the synthetic fibers but decreased the flowability of concrete. However, coconut fibers improved flexure strength more effectively than compressive strength. Furthermore, improvement in some durability performance was also observed, but less information is available in this regard. Moreover, the optimum dose is an important parameter for high-strength concrete. The majority of researchers indicate that 3.0% coconut fiber is the optimum dose. The overall study demonstrates that coconut fibers have the creditability to be used in concrete instead of synthetic fibers.

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“…In their studies, Robert et al [8] found that partial replacement of sand with 20% to 30% of coconut husk could yield solid core sandcrete blocks of satisfactory performance for non-load bearing applications. Enhancement of concrete durability using coconut shell and fiber [9] and fabrication of composite ceiling panels from coconut husks, waste newspaper and cassava starch [10] have been reported as well. According to Halfhide et al [11], spent coconut husks can be utilized for production of useful sorbent for small decentralization of waste water treatment systems.…”

Section: Introductionmentioning

confidence: 93%

Assessment of Thermophysical and Mechanical Properties of Composite Panels Fabricated from Untreated and Treated Coconut Husk Particles for Structural Application

Ekpenyong¹

2021

BEN

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Large quantities of coconut husks generated are under-utilized. In developing countries, this situation warrants their disposal by open burning or indiscriminate dumping. Either practice adversely affects the environment and public health. In this study, test samples were fabricated from untreated coconut husk particles (UCP) at 0%, 25%, 50%, 75%, and 100% weight proportions with treated coconut husk particles (TCP) using epoxy resin as binder. Five representative samples were prepared per formulation and then subjected to various intended tests. The test results revealed water absorption, bulk density, thermal conductivity, specific heat capacity, thermal diffusivity, nailability, flexural strength, and compressive strength to be (24.88 ± 0.04) %, (459.78 ± 0.05) kgm-3, (0.0867 ± 0.0001) Wm-1K-1, (1573.76 ± 1.14) Jkg-1K-1, (1.198 ± 0.002) x 10-7 m2s-1, (100.0 ± 0.0) %, (11.94 ± 0.03) N/mm2, and (22.86 ± 0.04) N/mm2 respectively for the control sample with UCP content. Also, the respective values of the properties were (29.05 ± 0.06) %, (583.87 ± 0.05) kgm-3, (0.1009 ± 0.0002) Wm-1K-1, (1402.66 ± 1.45) Jkg-1K-1, (1.232 ± 0.004) x 10-7 m2s-1, (100.0 ± 0.0) %, (14.58 ± 0.03) N/mm2, and (33.27 ± 0.02) N/mm2 for the counterpart sample containing the TCP. All the samples showed better tendencies for thermal insulation performance compared to conventional ceilings like plywood, PVC, and asbestos. Thus, utilization of coconut husks as described in this study could alternatively help to solve the disposal problems of such wastes while availing building industries with suitable raw materials to manufacture cost-effective heat-insulating ceilings.

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Study on Durability Properties of Coconut Shell Concrete with Coconut Fiber

Cited by 33 publications

References 16 publications

Glass Fibers Reinforced Concrete: Overview on Mechanical, Durability and Microstructure Analysis

Glass Fibers Reinforced Concrete: Overview on Mechanical, Durability and Microstructure Analysis

Mechanical and Durability Performance of Coconut Fiber Reinforced Concrete: A State-of-the-Art Review

Assessment of Thermophysical and Mechanical Properties of Composite Panels Fabricated from Untreated and Treated Coconut Husk Particles for Structural Application

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