Testing the Long-Term Flexural Behaviour of FRC with Synthetic Fibres

2015 ◽  
Vol 1106 ◽  
pp. 136-139
Author(s):  
Josef Fládr ◽  
Iva Broukalová
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
Fibre Reinforced Concrete ◽  
Flexural Behaviour ◽  
Time Intervals ◽  
Steel Fibre Reinforced Concrete ◽  
Flexural Loading

The paper describes a new methodology of investigation of long-term behaviour of fibre reinforced concrete (FRC) with of synthetic fibres. A set of tests was manufactured from FRC with synthetic fibres commonly used for production of FRC and referential set from SFRC (steel fibre reinforced concrete) and subjected to long-term loading. The testing is based on three-point flexural loading. In given time intervals deflections are measured and recorded. Results of investigations are presented and discussed.

scholarly journals Experimental study of flexural behaviour of layered steel fibre reinforced concrete beams

2017 ◽  
Vol 23 (6) ◽  
pp. 806-813 ◽  
Author(s):  
Inmaculada MARTÍNEZ-PÉREZ ◽  
Juozas VALIVONIS ◽  
Remigijus ŠALNA ◽  
Alfonso COBO-ESCAMILLA
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
Load Capacity ◽  
Reinforced Concrete Beams ◽  
Internal Layer ◽  
Fibre Reinforced Concrete ◽  
Test Results ◽  
Flexural Behaviour ◽  
Steel Fibre Reinforced Concrete ◽  
Layered Beams

The building of structures from steel fibre reinforced concrete (SFRC) in the external and conventional rein­forced concrete (RC) in the internal layer represents an economical alternative of structures effectively using SFRC. The paper presents test results of flexural behaviour of layered beams with SFRC external layers and RC internal layer. The behaviour of these beams is compared to test results of SFRC and conventional RC beams. The test results show, that the flexural load capacity for all series of beams is nearly similar, but the deflections of layered beams are less comparing to monolithic ones. It also been shown that the equations indicated in the Eurocode 2 can be used to design the flexural reinforcement in layered SFRC beams.

Long-term aging effects on tensile characterization of steel fibre reinforced concrete

2016 ◽  
Vol 17 (6) ◽  
pp. 1082-1093 ◽  
Author(s):  
Thomaz Eduardo Teixeira Buttignol ◽  
Matteo Colombo ◽  
Marco di Prisco
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
Fibre Reinforced Concrete ◽  
Aging Effects ◽  
Steel Fibre Reinforced Concrete ◽  
Tensile Characterization

Flexural behaviour of steel fibre-reinforced concrete under cyclic loading

2016 ◽  
Vol 126 ◽  
pp. 253-262 ◽  
Author(s):  
Bensaid Boulekbache ◽  
Mostefa Hamrat ◽  
Mohamed Chemrouk ◽  
Sofiane Amziane
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Steel Fibre ◽  
Fibre Reinforced Concrete ◽  
Flexural Behaviour ◽  
Steel Fibre Reinforced Concrete

scholarly journals Design Study of Steel Fibre Reinforced Concrete Shaft Lining for Swelling Ground in Toronto, Canada

2021 ◽  
Vol 11 (8) ◽  
pp. 3490
Author(s):  
Min Seong Kim ◽  
Sean Seungwon Lee
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
Time Dependent ◽  
Fibre Reinforced Concrete ◽  
Swelling Behaviour ◽  
Steel Fibre Reinforced Concrete ◽  
Long Term Stability ◽  
Shaft Lining ◽  
Installation Time

Reinforced concrete (RC) is a widely used construction material around the world. RC has many advantages in terms of structural stability. However, the reinforcement of RC requires extensive labour costs. Steel fibre reinforced concrete (SFRC) has been widely studied to replace steel bars in concrete structures over the decades. However, most underground structures, such as tunnel lining, are usually designed using conventional RC for long-term stability due to unexpected geotechnical characteristics, such as directional and depth-dependent varied lateral pressure, earthquakes, groundwater, and time-dependent swelling behaviour. In this paper, an alternative design of shaft structure using SFRC, based on the original RC designed data in the Toronto region, was studied to evaluate the feasibility of SFRC replacing conventional RC. A key geological feature of the site is that the bedrock is comprised of Georgian Bay shale, which exhibits long-term time-dependent deformation (TDD). The capacities of RC and SFRC for the shaft lining were calculated based on the Canadian concrete design codes CSA A23.3 and RILEM TC 162-TDF, to assess the benefit of adding steel fibre, and several analytical solutions were used to calculate the applied load on the lining. A specialised TDD constitutive model in Fast Lagrangian Analysis of Continua (FLAC) 2D was developed to estimate whether the optimum installation time of the shaft lining, based on the geological reports, is appropriate under swelling behaviour, and evaluate the resultant long-term stability. The calculated hoop thrust and bending moment for several loading cases were within the capacity of the SFRC shaft lining. The numerical analysis demonstrated that the proposed lining installation time could be reduced, despite consideration of the long-term TDD behaviour.

scholarly journals Shrinkage and flexural behaviour of free and restrained hybrid steel fibre reinforced concrete

2018 ◽  
Vol 189 ◽  
pp. 1007-1018 ◽  
Author(s):  
Zahran Al-Kamyani ◽  
Fabio P. Figueiredo ◽  
Hang Hu ◽  
Maurizio Guadagnini ◽  
Kypros Pilakoutas
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
Fibre Reinforced Concrete ◽  
Flexural Behaviour ◽  
Steel Fibre Reinforced Concrete
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