scholarly journals Constitutive model for fibre reinforced concrete based on the Barcelona test

2014 ◽  
Vol 53 ◽  
pp. 327-340 ◽  
Author(s):  
Ana Blanco ◽  
Pablo Pujadas ◽  
Sergio Cavalaro ◽  
Albert de la Fuente ◽  
Antonio Aguado
Keyword(s):  
Reinforced Concrete ◽  
Constitutive Model ◽  
Fibre Reinforced Concrete

scholarly journals QUASI-PLASTIC CONSTITUTIVE MODEL OF STEEL FIBRE REINFORCED CONCRETE/KVAZIPLASTINIS KONSTRUKCINIS PLIENFIBRIO BETONO MODELIS

1998 ◽  
Vol 4 (4) ◽  
pp. 274-279
Author(s):  
Janis Brauns ◽  
Karlis Rocens
Keyword(s):  
Reinforced Concrete ◽  
Constitutive Model ◽  
Steel Fibre ◽  
Fibre Reinforced Concrete ◽  
Steel Fibre Reinforced Concrete

Buvo sukurtas pusiau empirinis metodas plienfibrio betono elementų darbui nustatyti. Jis grindžamas tų elementų vienašo tempimo ir gniuždymo bandymais. Metodas buvo plėtojamas remiantis grynuoju lenkimu ir naudojant idealizuotą plienfibrio betono įempių ir deformacijų diagramą. Taikant stereologinį principą ir elektromagnetinį metodą, buvo nustatomas filtrų pasiskirstymo kietame betone laipsnis. Analitinė prognozė parodė, jog tas laipsnis sutampa su duomenimis, kurie gauti bandymais.

Constitutive model for fibre reinforced concrete by coupling the fibre and aggregate interlock resisting mechanisms

2020 ◽  
Vol 111 ◽  
pp. 103618 ◽  
Author(s):  
Luís M.P. Matos ◽  
Joaquim A.O. Barros ◽  
António Ventura-Gouveia ◽  
Rui A.B. Calçada
Keyword(s):  
Reinforced Concrete ◽  
Constitutive Model ◽  
Fibre Reinforced Concrete ◽  
Aggregate Interlock

Adding an expansive agent to increase the toughness of steel fibre reinforced concrete

2019 ◽  
Vol 26 (4) ◽  
pp. 197-208
Author(s):  
Leo Gu Li ◽  
Albert Kwok Hung Kwan
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
The Other ◽  
Fibre Reinforced Concrete ◽  
Test Results ◽  
Compressive Properties ◽  
Shrinkage Cracking ◽  
Steel Fibre Reinforced Concrete ◽  
Expansive Agent ◽  
Concrete Matrix

Previous research studies have indicated that using fibres to improve crack resistance and applying expansive agent (EA) to compensate shrinkage are both effective methods to mitigate shrinkage cracking of concrete, and the additions of both fibres and EA can enhance the other performance attributes of concrete. In this study, an EA was added to fibre reinforced concrete (FRC) to produce concrete mixes with various water/binder (W/B) ratios, steel fibre (SF) contents and EA contents for testing of their workability and compressive properties. The test results showed that adding EA would slightly increase the superplasticiser (SP) demand and decrease the compressive strength, Young’s modulus and Poisson’s ratio, but significantly improve the toughness and specific toughness of the steel FRC produced. Such improvement in toughness may be attributed to the pre-stress of the concrete matrix and the confinement effect of the SFs due to the expansion of the concrete and the restraint of the SFs against such expansion.

Structural performance of steel fibre reinforced concrete — Part IV. Toughness properties

2014 ◽  
Vol 5 (2) ◽  
pp. 119-125
Author(s):  
I. Kovács
Keyword(s):  
Reinforced Concrete ◽  
Steel Fibre ◽  
Fibre Orientation ◽  
Reinforced Concrete Beams ◽  
Fibre Reinforcement ◽  
Fibre Reinforced Concrete ◽  
Flexural Toughness ◽  
Steel Fibre Reinforced Concrete ◽  
Set Up ◽  
Flexural Tests

The present paper of a series deals with the experimental characterisation of flexural toughness properties of structural concrete containing different volume of hooked-end steel fibre reinforcement (75 kg/m3, 150 kg/m3). Third-point flexural tests were carried out on steel fibre reinforced concrete beams having a cross-section of 80 mm × 85 mm with the span of 765 mm, hence the shear span to depth ratio was 3. Beams were sawn out of steel fibre reinforced slab elements (see Part I) in order to take into consideration the introduced privilege fibre orientation (I and II) and the position of the beam (Ba-a, Ba-b, Ba-c) before sawing (see Part I). Flexural toughness properties were determined considering different standard specifications, namely the method of the ASTM (American Standards for Testing Materials), the process of the JSCE (Japan Society of Civil Engineering), and the final proposal of Banthia and Trottier for the post cracking strength. Consequently, behaviour of steel fibre reinforced concrete was examined in bending taking into consideration different experimental parameters such as fibre content, concrete mix proportions, fibre orientation, positions of test specimens in the formwork, while experimental constants were the size of specimens, the type of fibre used and the test set-up and test arrangement.

Sign in / Sign up

Export Citation Format

Share Document