Steel fibres for concrete. Definitions and specifications

2013 ◽  
Keyword(s):  
Steel Fibres

Pull-out behaviour of hooked steel fibres

10.1617/13472 ◽  
2005 ◽  
Vol 35 (251) ◽  
Author(s):  
P. Robins
Keyword(s):  
Steel Fibres ◽  
Pull Out

Effect of Steel Fibres on Flexural Toughness of Concrete and RC Beams

2021 ◽  
Author(s):  
Fuat Köksal ◽  
Kuppala Srinivasa Rao ◽  
Ziyafeddin Babayev ◽  
Mehmet Kaya
Keyword(s):  
Rc Beams ◽  
Steel Fibres ◽  
Flexural Toughness

scholarly journals Influence of Rapid Heat Treatment on the Shrinkage and Strength of High-Performance Concrete

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4102
Author(s):  
Jan Stindt ◽  
Patrick Forman ◽  
Peter Mark
Keyword(s):  
Heat Treatment ◽  
High Performance ◽  
High Performance Concrete ◽  
Treatment Time ◽  
Precast Concrete ◽  
Concrete Strength ◽  
Shrinkage Strain ◽  
Temperature Treatment ◽  
Production Flow ◽  
Steel Fibres

Resource-efficient precast concrete elements can be produced using high-performance concrete (HPC). A heat treatment accelerates hardening and thus enables early stripping. To minimise damages to the concrete structure, treatment time and temperature are regulated. This leads to temperature treatment times of more than 24 h, what seems too long for quick serial production (flow production) of HPC. To overcome this shortcoming and to accelerate production speed, the heat treatment is started here immediately after concreting. This in turn influences the shrinkage behaviour and the concrete strength. Therefore, shrinkage is investigated on prisms made from HPC with and without steel fibres, as well as on short beams with reinforcement ratios of 1.8% and 3.1%. Furthermore, the flexural and compressive strengths of the prisms are measured directly after heating and later on after 28 d. The specimens are heat-treated between 1 and 24 h at 80 °C and a relative humidity of 60%. Specimens without heating serve for reference. The results show that the shrinkage strain is pronouncedly reduced with increasing temperature duration and rebar ratio. Moreover, the compressive and flexural strength decrease with decreasing temperature duration, whereby the loss of strength can be compensated by adding steel fibres.

Flexural behaviour of pumice lightweight concrete reinforced with end-hooked steel fibres

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 3835-3847
Author(s):  
K.I. Christidis ◽  
E.G. Badogiannis ◽  
C. Mintzoli
Keyword(s):  
Lightweight Concrete ◽  
Flexural Behaviour ◽  
Steel Fibres

Free and Restrained Shrinkage of Hybrid Steel Fibres Reinforced Concrete

2017 ◽  
pp. 339-346
Author(s):  
Zahran Al-Kamyani ◽  
Kypros Pilakoutas ◽  
Maurizio Guadagnini ◽  
Panos Papastergiou
Keyword(s):  
Reinforced Concrete ◽  
Restrained Shrinkage ◽  
Steel Fibres
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