Performance of coconut coir reinforced hydraulic cement mortar for surface plastering application

Sathiparan, Navaratnarajah; Rupasinghe, Miuru Nishanthana; Pavithra, B

doi:10.1016/j.conbuildmat.2017.03.058

Cited by 86 publications

(46 citation statements)

References 27 publications

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“…Furthermore, for cement-lime mortars, a higher volume fraction of fibers resulted in better load-carrying capacity after achieving the maximum peak load. Other authors also reported this improvement in fracture toughness by adding vegetable fibers in mortars [14,31,34,35]. Xie et al [36] found that the incorporation of 16 wt.% of rice and bamboo cellulosic fibers increased the fracture toughness in 37 and 45 times, respectively, compared to the mortar without fibers.…”

Section: Compressive and Flexural Strengthsmentioning

confidence: 88%

Physical and Mechanical Performance of Coir Fiber-Reinforced Rendering Mortars

2021

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Coir fiber is a by-product waste generated in large scale. Considering that most of these wastes do not have a proper disposal, several applications to coir fibers in engineering have been investigated in order to provide a suitable use, since coir fibers have interesting properties, namely high tensile strength, high elongation at break, low modulus of elasticity, and high abrasion resistance. Currently, coir fiber is widely used in concrete, roofing, boards and panels. Nonetheless, only a few studies are focused on the incorporation of coir fibers in rendering mortars. This work investigates the feasibility to incorporate coir fibers in rendering mortars with two different binders. A cement CEM II/B-L 32.5 N was used at 1:4 volumetric cement to aggregate ratio. Cement and air-lime CL80-S were used at a volumetric ratio of 1:1:6, with coir fibers were produced with 1.5 cm- and 3.0 cm-long fibers and added at 10% and 20% by total mortar volume. Physical and mechanical properties of the coir fiber-reinforced mortars were discussed. The addition of coir fibers reduced the workability of the mortars, requiring more water that affected the hardened properties of the mortars. The modulus of elasticity and the compressive strength of the mortars with coir fibers decreased with increase in fiber volume fraction and length. Coir fiber’s incorporation improved the flexural strength and the fracture toughness of the mortars. The results emphasize that the cement-air-lime based mortars presented a better post-peak behavior than that of the cementitious mortars. These results indicate that the use of coir fibers in rendering mortars presents a potential technical and sustainable feasibility for reinforcement of cement and cement-air-lime mortars.

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Section: Compressive and Flexural Strengthsmentioning

confidence: 88%

Physical and Mechanical Performance of Coir Fiber-Reinforced Rendering Mortars

2021

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“…Being a natural material, it offers continuous supply and inexpensiveness. Furthermore, it is particularly known for its lower density and high elongation characteristics compared to other natural fibres [8].…”

Section: A Production and Properties Of Coir Fibrementioning

confidence: 99%

The Development of Coir- Concrete Blocks Aslightweight Construction Material

Rumbayan*,

Sudarno,

Ticoalu

2020

IJITEE

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This paper presents the research into the incorporation of coir fiber in concrete blocks for construction purposes. Mechanical tests were performed on concrete samples containing different percentages of chopped coir fibers (0.25, 0.50, 0.75 and 1 by weight of aggregates). Density and water absorption characteristic of the samples were also measured and evaluated in relation to the mechanical properties. It was found that the average compressive strength of the blocks is in the range of 5–6 MPa and the average flexural strength is in the range of 1.04–1.47 MPa, which are lower compared to the results of samples without coir. Nevertheless, the compressive strength range of coir- concrete blocks in this study satisfies the requirements of relevant standards (SNI, AS and ASTM), specifically for non-structural or non-load-bearing concrete blocks. Furthermore, the density of the coir-concrete blocks is between 1230–1536 kg/m3 which fit into the category of lightweight blocks. Based on the results, it can therefore be suggested that the development of coir-concrete blocks is feasible for non-structural, non-loadbearing, lightweight construction material.

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“…Table 2 summarized the material mix and the amount of water required for each mortar type. In their previous study, Sathiparan et al [16] have investigated the strength and durability properties of coconut coir reinforced cement-lime mortar. To evaluate the effectiveness of the coconut fiber on surface plaster, a series of tests on mortar cubes and beams were conducted.…”

Section: Designmentioning

confidence: 99%

Mechanical behavior of masonry strengthened with coir fiber reinforced hydraulic cement mortar as surface plaster

Rupasinghe¹,

Sathiparan²

2019

JSEAM

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Among the world population, a large proportion across the world still lives in masonry structures. The main problem in unreinforced masonry structures is its weakness against dynamic loads. This paper presents the proposal of the new retrofitting method using natural fiber added mortar as the surface plaster for masonry structures. Thus, the present study focuses on the experimental evaluation of a masonry prism with natural fiber reinforced mortar. The main reasons for the use of coconut coir as a natural fiber are richly available in locally and are fairly cheap. In this paper, the effects of coconut coir reinforced mortar mix, including different fiber content on compressive, shear and flexural bending behavior of masonry prisms is investigated through a comprehensive experimental study. Although this technique shows an average performance, due to the facts of low cost, local availability and relative simplicity of technique, this method may potentially be able to use to prevent the brittle collapse of unreinforced masonry structures under moderate seismic loading.

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Performance of coconut coir reinforced hydraulic cement mortar for surface plastering application

Cited by 86 publications

References 27 publications

Physical and Mechanical Performance of Coir Fiber-Reinforced Rendering Mortars

Physical and Mechanical Performance of Coir Fiber-Reinforced Rendering Mortars

The Development of Coir- Concrete Blocks Aslightweight Construction Material

Mechanical behavior of masonry strengthened with coir fiber reinforced hydraulic cement mortar as surface plaster

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