Performance of Thin-Wall Synthetic Fiber–Reinforced Concrete Pipes under Short and Long-Term Loading

2019 ◽  
Vol 48 (5) ◽  
pp. 20180369
Author(s):  
Fouad T. Al Rikabi ◽  
Shad M. Sargand ◽  
John Kurdziel ◽  
Issam Khoury
Keyword(s):  
Reinforced Concrete ◽  
Fiber Reinforced Concrete ◽  
Synthetic Fiber ◽  
Thin Wall ◽  
Fiber Reinforced ◽  
Concrete Pipes ◽  
Short And Long Term

Experimental Investigation of Thin-wall Synthetic Fiber Reinforced Concrete Pipes

2018 ◽  
Vol 115 (6) ◽  
Author(s):  
Fouad T. Al Rikabi ◽  
Shad M. Sargand ◽  
Joh Kurdziel ◽  
Husam H. Hussein
Keyword(s):  
Experimental Investigation ◽  
Reinforced Concrete ◽  
Fiber Reinforced Concrete ◽  
Synthetic Fiber ◽  
Thin Wall ◽  
Fiber Reinforced ◽  
Concrete Pipes

A new test method for evaluating the long-term performance of fiber-reinforced concrete pipes

2019 ◽  
Vol 23 (7) ◽  
pp. 1336-1349 ◽  
Author(s):  
Fouad T Al Rikabi ◽  
Shad M Sargand ◽  
Issam Khoury ◽  
John Kurdziel
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Steel Reinforcement ◽  
Fiber Reinforced Concrete ◽  
Synthetic Fiber ◽  
Concrete Pipes ◽  
Concrete Pipe ◽  
Long Term Performance ◽  
Term Performance

Synthetic fibers have been used recently to minimize the need for steel reinforcement in the concrete pipe to enhance their ductility. However, synthetic fiber has properties that may change over time due to its viscoelastic behavior. The objective of this study is to investigate the long-term performance of fiber-reinforced concrete pipes using a new test frame. A three-dimensional finite element model was created for the long-term testing frame to ensure its compliance with the American Society for Testing and Materials requirement. The finite element results showed that the testing frame successfully transferred the load to the concrete as the pipe cracked at the location where high flexural stresses are expected. Concrete pipe reinforced with synthetic fiber dosage of 9 kg/m3 along the steel reinforcement area of 5.7 cm2/m was tested to evaluate the concrete pipe system performance. The pipe was tested under two load stages for 120 days each. Load stages 1 and 2 included applying 40% and 70% of the ultimate load obtained by the authors in a previous study, respectively. The strain and deflection increased linearly within 5 days of applying the load and then leveled off. The pipe showed a slight increase in the crack width and deflection, indicating that fiber creep did not have a significant impact on the long-term performance of the concrete pipe. Also, it was observed that strain values surpassed those for plain concrete material, suggesting that including synthetic fiber in the concrete pipe mix enhanced the pipe ductility.

Thin-Wall Synthetic Fiber Reinforced Concrete Pipe Performance under Cyclic Loading

2019 ◽  
Author(s):  
Fouad T. Al Rikabi ◽  
Shad M. Sargand ◽  
Issam Khoury ◽  
John Kurdziel ◽  
Husam H. Hussein ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Fiber Reinforced Concrete ◽  
Synthetic Fiber ◽  
Thin Wall ◽  
Fiber Reinforced ◽  
Concrete Pipe

scholarly journals Long-term behavior of cracked fiber reinforced concrete under service conditions

2019 ◽  
Vol 196 ◽  
pp. 649-658 ◽  
Author(s):  
D.H. Monetti ◽  
A. Llano-Torre ◽  
M.C. Torrijos ◽  
G. Giaccio ◽  
R. Zerbino ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Service Conditions ◽  
Long Term Behavior
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