Shear behaviour of E-UHPC containing recycled steel fibres and design of E-UHPC screw piles

2021 ◽  
Vol 304 ◽  
pp. 124555
Author(s):  
M.N. Isa ◽  
Kypros Pilakoutas ◽  
Maurizio Guadagnini
Keyword(s):  
Shear Behaviour ◽  
Steel Fibres ◽  
Recycled Steel

Fiber-reinforced concrete with low content of recycled steel fiber: Shear behaviour

2018 ◽  
Vol 161 ◽  
pp. 141-155 ◽  
Author(s):  
M. Leone ◽  
G. Centonze ◽  
D. Colonna ◽  
F. Micelli ◽  
M.A. Aiello
Keyword(s):  
Reinforced Concrete ◽  
Steel Fiber ◽  
Fiber Reinforced Concrete ◽  
Shear Behaviour ◽  
Fiber Reinforced ◽  
Recycled Steel

Comparison of some Fresh and Hardened Properties of Self-Consolidating Concrete Composites Containing Rubber and Steel Fibers Recovered from Waste Tires

2019 ◽  
Vol 24 ◽  
pp. 8-13 ◽  
Author(s):  
Hamza Bensaci ◽  
Belkacem Menadi ◽  
Said Kenai
Keyword(s):  
Flexural Strength ◽  
Volume Fraction ◽  
Flow Time ◽  
Steel Fibers ◽  
Self Consolidating Concrete ◽  
Steel Fibres ◽  
Waste Tires ◽  
Slump Flow ◽  
Funnel Flow ◽  
Recycled Steel

This paper reports on an experimental investigation using either rubber aggregates or steel fibres recycled from waste tires in the production of self-consolidating concrete composite (SCCC). Ten mixes are designed, one of them is the reference concrete. The natural aggregates are substituted by rubber particles by volume at 5, 10, 15, 20 and 30%. Recycled steel fibres are separately added to SCC mixes at volume fraction of 0.5, 0.8, 1 and 1.5%. The tested rheological properties of SCCC are slump flow diameter, T500 slump flow time, V-funnel flow time, L-box ratio, and the segregation resistance test. The compressive strength, the flexural strength, and total shrinkage are also measured on the 28 days. The experimental results show that the addition of recycled steel fibre is favorable for the SCC by means of increasing the flexural strength and reducing the shrinkage and the risk of cracking. Keywords: Self-consolidating concrete composite; Waste tires; Rubber; Steel fibers; Rheology, Strength

Fatigue resistance and cracking mechanism of concrete pavements reinforced with recycled steel fibres recovered from post-consumer tyres

2012 ◽  
Vol 45 ◽  
pp. 385-395 ◽  
Author(s):  
Angela Gaio Graeff ◽  
Kypros Pilakoutas ◽  
Kyriacos Neocleous ◽  
Maria Vania N.N. Peres
Keyword(s):  
Fatigue Resistance ◽  
Concrete Pavements ◽  
Steel Fibres ◽  
Cracking Mechanism ◽  
Recycled Steel

EXPERIMENTAL RESULTS ON THE SHEAR BEHAVIOUR OF STEEL FIBRE SELF-COMPACTING CONCRETE (SFSCC) BEAMS

2016 ◽  
Vol 78 (11) ◽  
Author(s):  
Juli Asni Lamide ◽  
Roslli Noor Mohamed ◽  
Ahmad Baharuddin Abd Rahman
Keyword(s):  
Mechanical Properties ◽  
Steel Fibre ◽  
Mechanical Performance ◽  
Load Capacity ◽  
Shear Behaviour ◽  
Self Compacting Concrete ◽  
Steel Fibres ◽  
Concrete Mixtures ◽  
Shear Performance ◽  
Better Than

This paper presents an experimental test program that was carried out to investigate the shear performance of steel fibre self-compacting concrete (SFSCC) beams. In this paper, the mechanical performance of results from all mixtures used to cast normal concrete (NC), self-compacting concrete (SCC) and steel fibre self-compacting concrete (SFSCC) were also investigated. In total, 27 cubes, 9 cylinders, 9 prisms and 9 beams were prepared for the assessment of mechanical properties of three different mixtures. Four beams (125 mm x 250 mm x 2200 mm) were tested and cast using three different concrete mixtures, having two different spacing of stirrups as a result of 50% reduction of the stirrups amount. Three beams with different mixtures having similar stirrups spacing 125mm while the fourth beam with SFSCC mixes having 250mm stirrups spacing. The results show that the mechanical properties were positively affected with steel fibres inclusion. The addition of steel fibres showed an increment up to 40% in the shear load capacity for B-SFSCC125 compared to B-NC125 and B-SCC125.  In addition, the crack pattern of B-SFSCC was found better than B-NC and B-SCC.   

scholarly journals Experimental Investigation on the Shear Behaviour of Stud-Bolt Connectors of Steel-Concrete-Steel Fibre-Reinforced Recycled Aggregates Sandwich Panels

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5185
Author(s):  
Arash Karimipour ◽  
Mansour Ghalehnovi ◽  
Mohammad Golmohammadi ◽  
Jorge de Brito
Keyword(s):  
Shear Strength ◽  
Coarse Aggregate ◽  
Sandwich Panels ◽  
High Strength ◽  
Steel Plates ◽  
Recycled Aggregates ◽  
Shear Behaviour ◽  
Concrete Core ◽  
Steel Fibres ◽  
Normal Strength

Steel-concrete-steel (SCS) sandwich panels are manufactured with two thin high-strength steel plates and a moderately low-density and low-strength thick concrete core. In this study, 24 specimens were produced and tested. In these specimens, a new stud-bolt connector was used to regulate its shear behaviour in sandwich panels. The bolts’ diameter, concrete core’s thickness and bolts’ spacing were the parameters under analysis. Furthermore, the concrete core was manufactured with normal-strength concrete and steel fibres concrete (SFC). Steel fibres were added at 1% by volume. In addition, the recycled coarse aggregate was used at 100% in terms of mass instead of natural coarse aggregate. Therefore, the ultimate bearing capability and slip of the sandwich panels were recorded, and the failure mode and ductility index of the specimens were evaluated. A new formula was also established to determine the shear strength of SCS panels with this kind of connectors. According to this study, increasing the diameter of the stud-bolts or using SFC in sandwich panels improve their shear strength and ductility ratio.

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