The influence of addition of treated kenaf fibre in the production and properties of fibre reinforced foamed composite

Mst Sadia Mahzabin, Lim Jee Hock, Md Shabbir Hossain, Lim Siong Kang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper describes the investigation of the influence of treatment of fibre on the durability properties includes drying shrinkage test, water absorption test, initial surface absorption test (ISAT), and accelerated weathering test (wet/dry cycling). Additionally, scanning electron microscopy with energy dispersive X-ray (SEM/EDX) analysis was carried out to study the surface morphology under magnified graphics of lightweight foamed concrete with the inclusion of both treated and untreated kenaf fibres. The foamed concrete mixture was set to a target density of 1250 kg/m3 with a tolerance of 75 kg/m3. The cement, sand and water ratio used was 1:1.5:0.45 with 0.45% volume fraction of kenaf fibre inclusion. Correspondingly, the most optimal condition to perform such treatment was studied based on previous researchers, in which the alkaline medium used was 6% sodium hydroxide (NaOH), followed by 12 h immersion period. The study on durability properties of kenaf fibre reinforced lightweight foamed concrete (KFLFC) helps to determine the suitable application for various industrial products in term of lifespan and functionality. The advantageous properties such as low in density and light in weight can reduce the self-weight of structure, by all means, lowering the project cost and time. In this project, the durability tests of the kenaf fibre reinforced lightweight foamed concrete (KFLFC) were conducted according to American Standard Testing Method (ASTM), British Standards (BS EN), and Eurocodes (EC EN). The results showed that alkaline treatment could clean and chemically modify the kenaf fibres surface morphology, rendering to increase in surface roughness which gives better surface adhesion between fibre and cement matrix in terms of adhesion, hydration process, and internal curing process. Similarly, SEM analysis indicating better adhesion of treated kenaf fibre with matrix and lower ductility.

Original languageEnglish
Pages (from-to)518-528
Number of pages11
JournalConstruction and Building Materials
Volume178
DOIs
Publication statusPublished - 30 Jul 2018

Fingerprint

Kenaf fibers
Fibers
Composite materials
Durability
Adhesion
Concretes
Surface morphology
Cements
Sodium Hydroxide
Scanning electron microscopy
Energy dispersive X ray analysis
Concrete mixtures
Water absorption
Weathering
Hydration
Ductility
Curing
Volume fraction
Drying
Sand

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

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title = "The influence of addition of treated kenaf fibre in the production and properties of fibre reinforced foamed composite",
abstract = "This paper describes the investigation of the influence of treatment of fibre on the durability properties includes drying shrinkage test, water absorption test, initial surface absorption test (ISAT), and accelerated weathering test (wet/dry cycling). Additionally, scanning electron microscopy with energy dispersive X-ray (SEM/EDX) analysis was carried out to study the surface morphology under magnified graphics of lightweight foamed concrete with the inclusion of both treated and untreated kenaf fibres. The foamed concrete mixture was set to a target density of 1250 kg/m3 with a tolerance of 75 kg/m3. The cement, sand and water ratio used was 1:1.5:0.45 with 0.45{\%} volume fraction of kenaf fibre inclusion. Correspondingly, the most optimal condition to perform such treatment was studied based on previous researchers, in which the alkaline medium used was 6{\%} sodium hydroxide (NaOH), followed by 12 h immersion period. The study on durability properties of kenaf fibre reinforced lightweight foamed concrete (KFLFC) helps to determine the suitable application for various industrial products in term of lifespan and functionality. The advantageous properties such as low in density and light in weight can reduce the self-weight of structure, by all means, lowering the project cost and time. In this project, the durability tests of the kenaf fibre reinforced lightweight foamed concrete (KFLFC) were conducted according to American Standard Testing Method (ASTM), British Standards (BS EN), and Eurocodes (EC EN). The results showed that alkaline treatment could clean and chemically modify the kenaf fibres surface morphology, rendering to increase in surface roughness which gives better surface adhesion between fibre and cement matrix in terms of adhesion, hydration process, and internal curing process. Similarly, SEM analysis indicating better adhesion of treated kenaf fibre with matrix and lower ductility.",
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The influence of addition of treated kenaf fibre in the production and properties of fibre reinforced foamed composite. / Mahzabin, Mst Sadia; Hock, Lim Jee; Hossain, Md Shabbir; Kang, Lim Siong.

In: Construction and Building Materials, Vol. 178, 30.07.2018, p. 518-528.

Research output: Contribution to journalArticle

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