Strength of Reinforced Fibrous Foamed Concrete-Filled Hollow Section

Rahman, Norashidah Abd; Khairuddin, Siti Amirah Azra; Jamaluddin, Norwati; Jaini, Zainorizuan Mohd

doi:10.4028/www.scientific.net/msf.936.219

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…The compressive strength increased to 21.7 MPa. Compared with previous studies on PF and SF by Rahman et al (2018), the strength of modified PF increased by 12 per cent whereas that of SF increased by 19 per cent. Jaini et al (2017) stated that the improvement of compressive strength occurs because of the confinement provided by fibre, which increases the bonding of FC.…”

Section: Compressive Strengthcontrasting

confidence: 90%

Axial strength of modified fibrous foamed concrete-filled hollow section

Rahman

Khairuddin

Faudzi

et al. 2019

WJE

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Purpose Concrete-filled hollow section (CFHS) is widely used in steel construction. The combination of concrete and steel decreases buckling and deformation of steel. However, studies reveal that using normal concrete increases the dead weight of a structure. Therefore, a lightweight concrete, such as foamed concrete (FC), is proposed to reduce the weight of the structure. The purpose of this study is to determine the strength of modified fibrous foamed CFHS (FCFHS). Design/methodology/approach Steel and polypropylene fibres were used with rice husk ash, and short column fibrous FCFHSs were tested under compression load. Greased and non-greased methods were adopted to determine bond strength and confining effect between steel and concrete. Findings Results indicate that the use of fibre in FCFHSs improves the strength of CFHS from 9% to 11%. The non-greased method confirms that an interaction exists between steel and concrete with a confinement coefficient of more than 2.0. Originality/value It can be shown that the modified fibrous foamed concrete can increase the strength of the concrete and can be used as concrete filled in steel construction industry.

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Section: Compressive Strengthcontrasting

confidence: 90%

Axial strength of modified fibrous foamed concrete-filled hollow section

Rahman

Khairuddin

Faudzi

et al. 2019

WJE

Self Cite

View full text Add to dashboard Cite

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“…However, the highest compressive strength of the modified steel fibre (SF) foamed concrete (FC) (21.7 MPa) was obtained at a density of 1600 kg/m 3 . Compared with that in Rahman et al [18], the modified polypropylene fibre (PF) and steel fibre (SF) used in this study had 12% and 19% higher strengths, respectively. Jaini, Rum and Boon [19] stated that the improvements in compressive strength can be ascribed to the confinement provided by fibre, which increases the bonding of FC.…”

Section: Materials Propertiescontrasting

confidence: 69%

Archives of Civil Engineering

Khairuddin

Rahman

Jamaluddin

et al. 2020

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The concrete-filled section of columns has been widely in construction used due to its structural elements. As a result, the usage of composite columns has recently increased all over the world. However, using foamed concrete alone does not result in much improvements in strength. Therefore, this paper examines the use of foamed concrete containing fibre to improve the strength of composite columns. Specifically, this study aims to determine the bond strength of concrete-filled hollow section (CFHS) with modified fibrous foamed concrete. Two types of fibre are used in this work, namely, steel fibre and polypropylene fibre, with rice husk ash (RHA) as a sand replacement to improve the compressive strength of foamed concrete. The CFHS with modified fibrous foamed concrete is tested by using the push-out method, and the results show that CFHS with steel fibre has a highest bond strength.

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“…Despite of all these advantages, the main drawback of foamed concrete is its characteristic strength that only can reach around 10 MPa to 16 MPa. The modification of foamed concrete with characteristic strength more than 20 MPa by Eva et al [2], Just & Middendorf [3], Chen et al [4], Jaini et al [5] and Abd Rahman et al [6] have offered enormous turnover. Rum et al [7] and Jaini et al [8] exploited this finding by proposing foamed concrete composite slab, where the characteristic strength of foamed concrete is around 22 MPa to 28 MPa.…”

mentioning

confidence: 99%

Density and Strength of Foamed Concrete: The Influence on Dynamic Characteristics of Lightweight Profiled Composite Slabs

Rum¹,

Norhalim²,

Jaini³

et al. 2019

IJIE

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Recently, foamed concrete composite slab has received inclusive attention as sustainable and reliable structural component. The fascination toward lightweight and ductile materials have directed to the application of foamed concrete and corrugated steel deck. The use of these materials is to avoid the weight penalty and subsequently accelerate the construction processes of building. On the other hand, the performance of foamed concrete composite slab as compared with conventional slab was found very promising. Basically, foamed concrete composite slab, as can

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Strength of Reinforced Fibrous Foamed Concrete-Filled Hollow Section

Cited by 4 publications

References 6 publications

Axial strength of modified fibrous foamed concrete-filled hollow section

Axial strength of modified fibrous foamed concrete-filled hollow section

Archives of Civil Engineering

Density and Strength of Foamed Concrete: The Influence on Dynamic Characteristics of Lightweight Profiled Composite Slabs

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