Preliminary investigation on the flexural behaviour of steel fibre reinforced self-compacting concrete ribbed slab / Nur Aiman Suparlan … [et al.]

Suparlan, Nur Aiman and Ku Ayob, Muhammad Azrul and Ahmad, Hazrina and Hamzah, Siti Hawa and Mohd Hashim, Mohd Hisbany (2018) Preliminary investigation on the flexural behaviour of steel fibre reinforced self-compacting concrete ribbed slab / Nur Aiman Suparlan … [et al.]. Scientific Research Journal, 15 (1). pp. 32-45. ISSN 1675-7009

[img]
Preview
Text
AJ_NUR AIMAN SUPARLAN SRJ 18.pdf

Download (1MB) | Preview

Abstract

A ribbed slab structure has the advantage in the reduction of concrete volume in between the ribs resulting in a lower structural self-weight. In order to overcome the drawbacks in the construction process, the application of steel fibre self-compacting concrete (SCFRC) is seen as an alternative material to be used in the slab. This preliminary investigation was carried out to investigate the flexural behaviour of steel fibre selfcompacting concrete (SCFRC) as the main material in ribbed slab omitting the conventional reinforcements. Two samples of ribbed slab were prepared for this preliminary study; 2-ribbed and 3-ribbed in 1 m width to identify the effect of the geometry to the slab’s flexural behaviour. The dimension of both samples is 2.5 m x 1 m with 150 mm thickness. The compressive strength of the mix is 48.6 MPa based on the cubes tested at 28 days. Load was applied to failure by using the four point bending test set-up with simple support condition. The result of the experiment recorded ultimate load carrying capacity at 30.68 kN for the 2-ribbed slab and 25.52 kN for 3-ribbed slab. From the results, the ultimate load of the 2-ribbed sample exceeds 3-ribbed by approximately 20%. This proved that even with lower concrete volume, the sample can still withstand an almost similar ultimate load. Cracks was also observed and recorded with the maximum crack width of 2 mm. It can be concluded that the steel fibres do have the potential to withstand flexural loadings. Steel fibre reduces macro-crack forming into micro-cracks and improves concrete ductility, as well as improvement in deflection. This shows that steel fibre reinforced self-compacting concrete is practical as it offers good concrete properties as well as it can be mixed, placed easier without compaction.

Item Type: Article
Creators:
CreatorsEmail
Suparlan, Nur AimanUNSPECIFIED
Ku Ayob, Muhammad AzrulUNSPECIFIED
Ahmad, HazrinaUNSPECIFIED
Hamzah, Siti HawaUNSPECIFIED
Mohd Hashim, Mohd HisbanyUNSPECIFIED
Subjects: T Technology > TA Engineering. Civil engineering > Materials of engineering and construction
T Technology > TA Engineering. Civil engineering > Materials of engineering and construction > Concrete
Divisions: Institute of Research Management and Innovation (IRMI)
Journal or Publication Title: Scientific Research Journal
ISSN: 1675-7009
Volume: 15
Number: 1
Page Range: pp. 32-45
Item ID: 21296
Uncontrolled Keywords: Flexural behaviour; Steel fibtr; Concrete ribbed slab
Last Modified: 16 Aug 2018 07:37
Depositing User: Staf Pendigitalan 5
URI: http://ir.uitm.edu.my/id/eprint/21296

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year