Durability performance of foamed concrete strengthened with chemical treated (NaOH) coconut fiber

Mydin, Azree Othuman; Mohamad, Noridah; Samad, Abdul; Johari, Izwan; Munaaim, Muhammad Arkam Che

doi:10.1063/1.5055511

Cited by 15 publications

(12 citation statements)

References 9 publications

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“…11 outline that the ultrasonic pulse velocity of BFRCLC increased with a rise in the hydration period of the composites irrespective of the percentage of NaOH treatment. In the same manner, compared to untreated composite samples and plain CLC samples, at the 28 days curing period, the ultrasonic pulse velocity increased with a larger percentage of NaOH treatment of banana fibre composite up to 6% NaOH treatment, where the ultra-sonic pulse velocity was at its maximum values (Mydin, Mohamad, Samad, Johari, & Munaaim, 2018). The percentage increase in the ultra-pulse velocity of the 6% NaOH treated composites compared to the untreated composites samples and plain control samples at 28 days curing age were 14.1% and 15.3%, respectively.…”

Section: Results Of Ultra-sonic Pulse Velocity Of Bfrclc Compositementioning

confidence: 68%

Optimization of mechanical properties of cellular lightweight concrete with alkali treated banana fiber

Nensok

Mydin

Awang

2021

rdlc

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Recent advancements in construction materials development have involved the utilization of plant-based natural fibers such as kenaf, sisal, coir and banana to replace conventional fibers such as carbon, steel, polypropylene and aramid. However, the main issue with using these fibers is the alkaline cement matrix's durability and compatibility due to high water absorption. Hence, this research focuses on the use of alkali treatment of banana fibers to enhance the mechanical properties of cellular lightweight concrete (CLC). Banana fibers were subjected to 2%, 4%, 6%, 8%, and 10% NaOH treatment before being included in 1200 kg/m3 density CLC. Plain CLC and untreated fiber composites (0% NaOH treatment) were used as the control. Results from the study indicate that compared to the untreated fibre composites and plain control CLC at 28 days, compressive, flexural and splitting tensile strengths increased simultaneously with 6% NaOH fibre treatment to peaks of 40.6% and 59.8%, 63.8% and 117.4%, and 77.4% and 157.8% respectively. The 6% NaOH treatment of BF tremendously improved the mechanical characteristics of single fibers and BFRCLC composites. It is therefore concluded that 6% NaOH treatment of banana fibre was the optimum percentage alkali treatment for use in CLC.

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Section: Results Of Ultra-sonic Pulse Velocity Of Bfrclc Compositementioning

confidence: 68%

Optimization of mechanical properties of cellular lightweight concrete with alkali treated banana fiber

Nensok

Mydin

Awang

2021

rdlc

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“…e addition of fiber can effectively reduce the elongation of microcracks and disperse certain external loads when failure occurs, improving the compressive properties of air-foamed lightweight soil [15]. Polypropylene, glass, coconut, polyvinyl alcohol, and kenaf fibers are the most commonly used fibers [89][90][91]. Raj et al [92] indicated that using 0.3% polyvinyl alcohol fiber can increase the compressive strength of 1600 kg/m 3 air-foamed lightweight soil by 76%.…”

Section: Compressive Strengthmentioning

confidence: 99%

Engineering Properties and Applications of Air-Foamed Lightweight Soil

Yuan

Lü

Yao

et al. 2022

Advances in Materials Science and Engineering

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With the continuous development of road construction worldwide, the construction sector is trying to find a versatile material for building roads in particular areas. Air-foamed lightweight soil, which is produced using low-cost raw materials and has a lower density varying from 300 to 1800 kg/m3, adjustable strength, excellent thermal isolation, and a more straightforward construction method, has emerged as a worthy candidate. This paper reviews air-foamed lightweight soil in terms of its composition as well as physical and mechanical properties, such as its compressive strength, flexural strength, and stability. This paper also generalizes the engineering applications of air-foamed lightweight soil and provides ideas for its wide use.

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“…Izani et al (2013) reported improvements in tensile strength and Young's modulus of 23% and 9%, respectively, for EFBF after soaking in 2% NaOH solution at room temperature for 30 minutes. Although Mydin et al (2018), did not perform any test on (6% NaOH pretreated) coconut fibres directly, about 30% improvement in compressive strength of concrete incorporating the fibres was reported. This implies improved bonding between the concrete matrix and the coconut fibres.…”

Section: Introductionmentioning

confidence: 99%

“…In the correct concentration, however, alkali treatment decreases surface tension, increases aspect ratio and enhances bonding with matrices through either inter-diffusion, electrostatic adhesion, chemical reaction, mechanical interlock or a combination of these mechanisms (Zhou et al 2016). This is as a result of an increase in the number of reaction sites between fibre and matrix (Ozerkan et al 2013;Mydin et al 2018). Although there is disparity on the moisture absorption behaviour of vegetable fibres after alkalisation, there is agreement that alkalisation leads to enhancement in fibre purity, rougher fibre surface and improvement in fibre-matrix bond.…”

Section: Introductionmentioning

confidence: 99%

Physicomechanical Properties of Treated Oil Palm-Broom Fibers for Cementitious Composites

Momoh

Osofero

Menshykov

2020

J. Mater. Civ. Eng.

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The use of natural fibres such as oil palm broom fibres (OPBF) for reinforcing cementitious composites though reported to be beneficial from economic and environmental standpoints have generated durability concerns that have caused investigations into possible fibre treatments. In this study, three (3) types of treatments were carried out on OPBF. These include alkalisation, silanization and hot-water treatments.

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Durability performance of foamed concrete strengthened with chemical treated (NaOH) coconut fiber

Cited by 15 publications

References 9 publications

Optimization of mechanical properties of cellular lightweight concrete with alkali treated banana fiber

Optimization of mechanical properties of cellular lightweight concrete with alkali treated banana fiber

Engineering Properties and Applications of Air-Foamed Lightweight Soil

Physicomechanical Properties of Treated Oil Palm-Broom Fibers for Cementitious Composites

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