scholarly journals Utilization of Industrial Wastes in Manufacture of Self Compacting Concrete and Examining Its Flexural Behaviour

2020 ◽  
Vol 955 ◽  
pp. 012044
Author(s):  
Yuvaraj Subramaniyan ◽  
Jeyanth Baskaran ◽  
Nirmal Kumar Krishnaswami
Keyword(s):  
Industrial Wastes ◽  
Flexural Behaviour ◽  
Self Compacting Concrete

Preliminary Investigation on the Flexural Behaviour of Steel Fibre Reinforced Self-Compacting Concrete Ribbed Slab

2018 ◽  
Vol 15 (1) ◽  
pp. 31
Author(s):  
Nur Aiman Suparlan ◽  
Muhammad Azrul Ku Ayob ◽  
Hazrina Ahmad ◽  
Siti Hawa Hamzah ◽  
Mohd Hisbany Mohd Hashim
Keyword(s):  
Ultimate Load ◽  
Steel Fibre ◽  
Preliminary Investigation ◽  
Bending Test ◽  
Flexural Behaviour ◽  
Self Compacting Concrete ◽  
Two Samples ◽  
Simple Support ◽  
Set Up ◽  
Ultimate Load Carrying Capacity

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 self-compacting 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. 

Flexural behaviour of hybrid fibre (steel fiber and silica fume) reinforced self compacting composite concrete members

2014 ◽  
Vol 11 (4) ◽  
pp. 323-330 ◽  
Author(s):  
S. Arivalagan
Keyword(s):  
Compressive Strength ◽  
Silica Fume ◽  
Steel Fiber ◽  
Volume Fraction ◽  
Hardened Concrete ◽  
Flexural Behaviour ◽  
Self Compacting Concrete ◽  
Engineering Structures ◽  
Conventional Concrete ◽  
Concrete Members

The present day world is witnessing the construction of very challenging and difficult civil engineering structures. Self-compacting concrete (SCC) offers several economic and technical benefits; the use of steel fiber extends its possibilities. Steel fiber acts as a bridge to retard their cracks propagation, and improve several characteristics and properties of the concrete. Therefore, an attempt has been made in this investigation to study the Flexural Behaviour of Steel Fiber Reinforced self compacting concrete incorporating silica fume in the structural elements. The self compacting concrete mixtures have a coarse aggregate replacement of 25% and 35% by weight of silica fume. Totally eight mixers are investigated in which cement content, water content, dosage of superplasticers were all constant. Slump flow time and diameter, J-Ring, V-funnel, and L-Box were performed to assess the fresh properties of the concrete. The variable in this study was percentage of volume fraction (1.0, 1.5) of steel fiber. Finally, five beams were to be casted for study, out of which one was made with conventional concrete, one with SCC (25% silica fume) and other were with SCC (25% silica fume + 1% of steel fiber, 25% silica fume + 1.5% of steel fiber) one with SCC (35% silica fume), and other were SCC (35% Silica fume + 1% of steel fiber, 35% Silica fume + 1.5% of steel fiber). Compressive strength, flexural strength of the concrete was determined for hardened concrete for 7 and 28 days. This investigation is also done to determine the increase the compressive strength by addition of silica fume by varying the percentage.

Effect of cover thickness on flexural behaviour of conventional and self compacting concrete beams subjected to elevated temperature

2021 ◽  
Author(s):  
N. Anand ◽  
A. Diana Andrushia ◽  
Mervin Ealiyas Mathews ◽  
Tattukolla Kiran ◽  
Dinesh Lakshmanan Chandramohan ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Concrete Beams ◽  
Flexural Behaviour ◽  
Self Compacting Concrete ◽  
Cover Thickness

Innovative Method of Shielding the SS Pipe Carrying Industrial Wastes by Using Self-Compacting Concrete for Sustainable Construction

2016 ◽  
Vol 692 ◽  
pp. 110-118
Author(s):  
C. Sivathanu Pillai ◽  
A.R. Santhakumar ◽  
R. Murugan
Keyword(s):  
Ground Water ◽  
Industrial Waste ◽  
Social Impact ◽  
Industrial Wastes ◽  
Sustainable Construction ◽  
Self Compacting Concrete ◽  
Pipe System ◽  
Continuous Contact ◽  
Innovative Method ◽  
Casing Pipe

In an underground R.C. Tunnel constructed as conduit for SS Pipes carrying industrial waste liquid, heavy ingress of ground water was witnessed and had to be overcome. Industrial wastes are to be carried through pipes in pipe system with an outer casing of a 200 mm dia SS pipe. Continuous contact of ground water with the casing SS pipe will deteriorate the pipe with the consequence of mixing of waste with the ground water. To avoid this, tunnel was sealed by enclosing the casing pipe with self-compacting concrete (SCC) for preventing ingress of ground water into the tunnel. As sustainability comprise Economy, Environment and social impact, the use of SCC take care the above factors by utilizing fly ash which replaces cement ,thereby, protecting the environment from industrial waste to produce socially accepted concrete and ensuring sustainable construction.

scholarly journals Sustainable use of Industrial Wastes as Replacement for Fine and Coarse Aggregate in Production of Self Compacting Concrete – A State of the Art

2020 ◽  
Vol 9 (4) ◽  
pp. 2580-2587
Keyword(s):  
Steel Slag ◽  
Sustainable Use ◽  
Copper Slag ◽  
Industrial Wastes ◽  
Waste Materials ◽  
Self Compacting Concrete ◽  
Industry Waste ◽  
Coarse Aggregates ◽  
Fine Aggregates ◽  
Concrete Production

From recent global research developments, lot of natural and artificial materials are coming from industries those are normally discarded or used as landfills are investigated for potential construction applications. There are different industry waste materials like steel slag, copper slag, electric furnace slag etc., which are used in various types of concretes such as conventional, geo-polymer self-compacting concretes. Now a day’s utilization of Self- Compacting Concrete (SCC) is increasing speedily because of its attractive characteristics like effective fresh, mechanical and durability properties and its large applications in construction. In addition to this, SCC materials are associated with sustainability issues. Necessity of SCC expected to continuously increases with increasing developments around the world. Therefore required an ideal solution and sustain technology; such as utilization of alternative materials. The present study explains application of industrial waste materials to replace fine and coarse aggregates in self-compacting concrete production. Also, effective limitations in using some of the waste materials as sustainable alternatives for coarse and fine aggregates have been mentioned. From this review, it is evident that factors like carbon emissions, energy for production and cost production of SCC can be notably decreased by incorporating of waste materials in place of fine and coarse aggregates in Self-Compacting Concrete.

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