Experimental investigation on strength and properties of natural fibre reinforced cement mortar

Mathavan, M.; Sakthieswaran, N.; Babu, O. Ganesh

doi:10.1016/j.matpr.2020.06.295

Cited by 11 publications

(12 citation statements)

References 4 publications

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“…The higher the fibre content, the lower the compressive strength. This is also observed in previous studies that utilized plant fibres [22,[32][33][34]. The compressive strength test results are represented in Figure 5.…”

Section: Compressive Strength Testsupporting

confidence: 83%

“…An addition of 1% of mineral wool fibres and coconut fibres resulted in a reduction of slump value by 20%, while the addition of 1.5% of mineral wool fibres and 1.5% of coconut fibres achieved a reduction in workability by 40% and 30%, respectively. The reduction in workability of the mortar is due to the higher water absorption characteristics of these fibres, as also observed from previous studies [32,33]. Generally, the workability of cementitious mixtures depends largely on the water absorption capacity of raw materials, and also on the cohesion of particles.…”

Section: Test On Fresh Mortar Slump Testsupporting

confidence: 72%

“…The decrease in compressive strength ranges from 12.0-31.99% with an increase in mineral wool content (1-1.5%) while the addition of coconut fibres (1-1.5%) led to a reduction in compressive strength of the mortar (40-56%). However, a study by Mathavan et al [32] on using organic fibres of wool and silk shows a decline of 4.55% in compressive strength from the control at 7 days with 1.0% fibre content, but an increase in compressive strength by 2.84% with 1.5% of organic fibres at 7 days. The improvement in compressive strength is even greater after 28 days of curing, as seen in Table 4 [32].…”

Section: Comparison Of Results With Previous Studiesmentioning

confidence: 93%

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Development of Fibre-Reinforced Cementitious Mortar with Mineral Wool and Coconut Fibre

et al. 2022

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Globally, as human population and industries grow, so does the creation of agricultural, industrial, and demolition waste. When these wastes are not properly recycled, reused, or disposed of, they pose a threat to the environment. The importance of this study lies in the beneficial use of coconut fibre and mineral wool in the form of fibres in cement mortar production. This study examines the use of coconut and mineral wool fibres in the production of fibre-reinforced mortar. Five different mortar mixtures were prepared, having one control mortar along with four fibre-reinforced mortars. The control mortar is denoted as CM while 1% and 1.5% of mineral wool are incorporated into this mortar mix and denoted as RMM-1.0 and RMM-1.5, respectively. Additionally, the mortar sample configurations contain 1% and 1.5% coconut fibers, designated as RCM-1.0 and RCM-1.5. These samples were subjected to different strength and durability tests to determine their suitability for use in mortar production. The testing findings show that mortar containing 1.5% mineral wool has better compared flexural strength and durability properties. The investigation results will form part of the database for the efficient utilization of natural and waste fibres in the construction and building sectors.

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Section: Compressive Strength Testsupporting

confidence: 83%

Section: Test On Fresh Mortar Slump Testsupporting

confidence: 72%

Section: Comparison Of Results With Previous Studiesmentioning

confidence: 93%

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Development of Fibre-Reinforced Cementitious Mortar with Mineral Wool and Coconut Fibre

et al. 2022

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“…Han et al [ 10 , 11 , 12 ] filled cement mortar with modified carbon fibers, and the addition of carbon fiber improves the compressive strength, tensile strength, and strain capacity and significantly reduces the volume shrinkage during the hardening process. Mathavan et al [ 13 , 14 ] evaluated fiber cement-based materials’ mechanical properties and durability, including six natural fibers of cotton, wool, silk, linen, nylon, and polyester as additives. After proper solution treatment, it can be used as a strengthening mechanism for mortar.…”

Section: Introductionmentioning

confidence: 99%

Frost Resistance Investigation of Fiber-Doped Cementitious Composites

Zou

et al. 2022

Materials

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Fibers used as reinforcement can increase the mechanical characteristics of engineering cementitious composites (ECC), but their frost resistance has received less attention. The mechanical properties of various fiber cementitious materials under the dual factors of freeze-thaw action and fiber dose are yet to be determined. This study examines the performance change patterns of cementitious composites, which contain carbon fiber, glass fiber, and polyvinyl alcohol (PVA) fiber at 0%, 0.5%, and 1% volume admixture in freeze-thaw tests. Three fiber cement-based materials are selected to do the compression and bending testing, and ABAQUS finite element modeling is used to assess the performance of fiber cement-based composite materials. The microscopic observation results show that the dispersion of glass and PVA fibers is higher than that of carbon fibers. As a result, the mechanical characteristics of the fiber-doped cementitious composites increase dramatically after freeze-thaw with increasing dosage. The compression test results show the frost resistance of carbon fiber > PVA fiber > glass fiber. In addition, the bending test results show the frost resistance of carbon fiber > glass fiber > PVA fiber. The 3D surface plots of the strength changes are established to observe the mechanical property changes under the coupling effect of admixture and freeze-thaw times. ABAQUS modeling is used to predict the strength of the cementitious composites under various admixtures and freeze-thaw cycles. The bending strength numerical equation is presented, and the bending and compressive strengths of three different fiber-cement matrix materials are accurately predicted.

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“…Fiber water absorption is a physical property with extremely high results, as shown in Table 2 . This makes the behavior of cementitious composites with NLFs extremely problematic, due to two principles: (i) since the fiber absorbs too much water, the matrix cement may lack water for the cement hydration reactions to occur [ 52 ]; and (ii) for the high water absorption, it may internally form a water accumulation point that will make the compound weaker, and hence problematic [ 64 , 65 ]. Several durability problems presented by cementitious materials with NLFs occur due to this problem.…”

Section: Anatomy Of Amazon Natural Lignocellulosic Fibers (Nlfs)mentioning

confidence: 99%

Potential of Using Amazon Natural Fibers to Reinforce Cementitious Composites: A Review

Lima¹,

Azevedo²,

Marvila

et al. 2022

Polymers

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The engineering application of natural lignocellulosic fibers (NLFs) has been intensifying all over the world due to their low cost and abundance, as well as their being eco-friendly and presenting favorable technological properties in polymeric and cementitious composites. Brazil, especially the Amazon region, owing to its climate and geographic position, has an abundant variety of NLFs that are still unexplored with great potential for use in various composite materials and applications such as civil construction, automobile parts and armor. Therefore, this review aims to establish a parallel between the technological properties of cementitious composites reinforced with Amazon NLFs, both in fresh and hardened states, and to analyze, compare results and contribute to a better understanding of the similarities and differences between the types of reinforcements. A relevant contribution of this review is the possibility of improving knowledge about Amazon NLFs, showing their potential for application in eco-friendly materials, in addition to contributing to studies with new NLFs not yet applied in composite. For this, it was necessary to carry out a literature survey on the physical, chemical and mechanical properties of cementitious composites reinforced with NLFs, in addition to analyzing case studies involving fibers such as curaua, açai, bamboo, jute and sisal. It can be concluded that the physical and chemical characteristics of the Amazon NLFs directly influence the technological properties of cementitious compounds, such as mechanical strength and water absorption. However, there might be a need for surface treatment aimed at improving adhesion and durability of the cementitious composite. Finally, some suggestions for future research work are highlighted in order to show the need to continue investigations on the application of Amazon NLFs in cementitious composites.

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Experimental investigation on strength and properties of natural fibre reinforced cement mortar

Cited by 11 publications

References 4 publications

Development of Fibre-Reinforced Cementitious Mortar with Mineral Wool and Coconut Fibre

Development of Fibre-Reinforced Cementitious Mortar with Mineral Wool and Coconut Fibre

Frost Resistance Investigation of Fiber-Doped Cementitious Composites

Potential of Using Amazon Natural Fibers to Reinforce Cementitious Composites: A Review

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