scholarly journals Shear Behavior of Basalt Fiber Reinforced Concrete Beams with and without Basalt FRP Stirrups

2016 ◽  
Vol 20 (4) ◽  
pp. 04015083 ◽  
Author(s):  
Mohsen A. Issa ◽  
Thilan Ovitigala ◽  
Mustapha Ibrahim
2017 ◽  
Vol 4 (20) ◽  
pp. 391-404
Author(s):  
Julita Krassowska ◽  
Marta Kosior-Kazberuk

The paper presents the results of a comprehensive investigation aimed at studying the shear behavior of basalt or steel fiber-reinforced concrete (BFRC or SFRC) beams, as well as analyzing the possibility of using basalt or steel fibers as a minimum shear reinforcement. Two-span reinforced concrete beams with the cross-section of 8×16 cm and length of 200 cm and diversified spacing of stirrups were tested. Steel stirrups or alternatively steel or basalt fibers were used as a shear reinforcement. Steel fiber content was 80 and 120 kg/m3and basalt fiber content was 2.5 and 5.0 kg/m3. The shear behavior and/or bending capacity of SFRC and BFRC beams were studied. The result indicated that fibers can be safely used as a minimum shear reinforcement.


2019 ◽  
Vol 22 (7) ◽  
pp. 1727-1738 ◽  
Author(s):  
Masoud Pourbaba ◽  
Hamed Sadaghian ◽  
Amir Mirmiran

In this research, the flexural and shear behavior of five locally developed ultra-high-performance fiber-reinforced concrete beams was experimentally investigated. Four-point loading tests were carried out on concrete specimens which were further compared with five normal-strength concrete beams constructed at the laboratory. The objective of this study is to assess the flexural and shear behavior of ultra-high-performance fiber-reinforced concrete beams and compare them with that of normal-strength beams and available equations in the literature. Results indicate underestimation of shear (up to 2.71 times) and moment capacities (minimum 1.27 times, maximum 3.55 times) by most of the equations in beams with low-reinforcement ratios. Finally, results reveal that the experimental flexural and shear capacities of ultra-high-performance fiber-reinforced concrete specimens are up to 3.5 times greater than their normal-strength counterpart specimens.


2011 ◽  
Vol 243-249 ◽  
pp. 1058-1061
Author(s):  
Jun Wang ◽  
Huan Jun Ye ◽  
Zhi Wei Sun ◽  
Wei Chen

In order to research the influence of basalt fiber on the crack and deflection of the reinforced concrete beams, four basalt fiber reinforced concrete beams with the key parameters of length which were 12mm and 30mm and volume ratio which were 0.1% and 0.2% were designed and made. The test data was obtained through the bending experiment and the comparison with the common reinforced concrete beam. The result shows that it is obvious to control the crack and deflection of the test beams with the increasing of basalt fiber characteristic parameters. The calculation method of the maximum crack width of the basalt fiber reinforced concrete beams were presented based on the method of common concrete beam, which can provide the theoretical basis for the engineering practice.


2014 ◽  
Vol 584-586 ◽  
pp. 899-903
Author(s):  
Wei Chen ◽  
Xiang Peng Li ◽  
Ting Ting Chen ◽  
Xiao Yang Wang ◽  
Chao Chao Ma

In order to research the influence of the shear capacity of reinforced concrete beam with the incorporation of basalt fiber, four basalt fiber reinforced concrete beams with parameters of length and volume ratio were designed and made. The fiber lengths were 12mm and 30mm, and the volume ratios were 1‰ and 2‰. The test data of basalt fiber reinforced concrete was obtained through the shear experiments and comparison with the common reinforced concrete beam. The results of the experiment show that the cracking load of the basalt fiber reinforced concrete beam increase obviously with the growing of fiber characteristic parameters, and effectively reduce the diagonal crack width.


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