Fiber-reinforced concrete in precast concrete applications: Research leads to innovative products

PCI Journal ◽  
2012 ◽  
Vol 57 (3) ◽  
pp. 33-46 ◽  
Author(s):  
Nemkumar Banthia ◽  
Vivek Bindiganavile ◽  
John Jones ◽  
Jeff Novak
Keyword(s):  
Reinforced Concrete ◽  
Precast Concrete ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Innovative Products

scholarly journals Study on the Applicability of Short Fiber Reinforced Concrete to Precast Concrete Slabs for Slab Track

2008 ◽  
Vol 49 (1) ◽  
pp. 40-46 ◽  
Author(s):  
Takatada TAKAHASHI ◽  
Etuo SEKINE ◽  
Takahiro HORIIKE ◽  
Shigeru MATSUOKA ◽  
Hideki HOSHIRO
Keyword(s):  
Reinforced Concrete ◽  
Precast Concrete ◽  
Short Fiber ◽  
Fiber Reinforced Concrete ◽  
Concrete Slabs ◽  
Fiber Reinforced ◽  
Slab Track

scholarly journals Numerical Analysis on Shear Behavior of Joints under Low Confining and Eccentric Loads

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Gongfa Chen ◽  
Zhuangcheng Fang ◽  
Shaodi Wang ◽  
Haibo Jiang ◽  
Hualian Liang
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Precast Concrete ◽  
Shear Capacity ◽  
Fiber Reinforced Concrete ◽  
Displacement Curve ◽  
Fiber Reinforced ◽  
Steel Fiber Reinforced Concrete ◽  
Ultimate Shear Strength ◽  
Eccentric Load

The joints of precast concrete segmental beams (PCSBs), which are in complex stress status and susceptible to failure, are very important parts of the structure. In this paper, a finite element model was established to study the shear performance of single-keyed joints. The plastic damage model was used to simulate the cracking of specimens. Three types of single-keyed joints were investigated, including the dry joint with normal concrete (NC), dry joint with steel fiber-reinforced concrete (SFRC), and epoxied joint with NC. The cracking pattern, ultimate shear strength, and load-displacement curve for these specimens were obtained. Based on these numerical simulation models, extended analyses in terms of low confining pressures and eccentric loads were performed. It has been found that the influence of fiber-reinforced concrete should be considered. The ultimate shear strength of specimens reduced with the reduction of confining pressure. When an eccentric load was applied, a lower shear capacity would be obtained. Under the low confining stress, the AASHTO LRFD 2014 provision underestimated the shear strength of single-keyed dry joints with both NC and SFRC, while the shear capacity of single-keyed dry joints with both NC and SFRC has been overestimated under the eccentric loads.

Research Progress on Reinforced Concrete Composite Beam in China

2014 ◽  
Vol 584-586 ◽  
pp. 939-943
Author(s):  
Wei Jian Zhao ◽  
Jia Xin Tong ◽  
Shen Ming Yuan ◽  
Ye Nan Guo
Keyword(s):  
Reinforced Concrete ◽  
Composite Beam ◽  
Building Materials ◽  
Precast Concrete ◽  
Crumb Rubber ◽  
Composite Beams ◽  
Fiber Reinforced Concrete ◽  
Research Progress ◽  
Fiber Reinforced ◽  
Reactive Powder

Reinforced concrete composite beam plays a very important role in the precast concrete structure, composite beam research is critical. Based on the research results about it in China, on the one hand, from the traditional composite beams to the improved ones, the various kinds of composite beams were concluded; on the other hand, the applications of new building materials in the composite beams had been included, which included fiber reinforced cement-based composites, steel fiber reinforced concrete, reactive powder concrete and crumb rubber concrete. Through to the both related tests and theoretical studies, the progress of the composite beams was summarized. Finally, the further research was prospected.

Effect of combined drink cans and steel fibers on the impact resistance and mechanical properties of concrete

2020 ◽  
Vol 14 (2) ◽  
pp. 6734-6742
Author(s):  
A. Syamsir ◽  
S. M. Mubin ◽  
N. M. Nor ◽  
V. Anggraini ◽  
S. Nagappan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
Impact Resistance ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Fiber Reinforced ◽  
Indirect Tensile ◽  
The Impact

This study investigated the combine effect of 0.2 % drink cans and steel fibers with volume fractions of 0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3% to the mechanical properties and impact resistance of concrete. Hooked-end steel fiber with 30 mm and 0.75 mm length and diameter, respectively was selected for this study.  The drinks cans fiber were twisted manually in order to increase friction between fiber and concrete. The results of the experiment showed that the combination of steel fibers and drink cans fibers improved the strength performance of concrete, especially the compressive strength, flexural strength and indirect tensile strength. The results of the experiment showed that the combination of steel fibers and drink cans fibers improved the compressive strength, flexural strength and indirect tensile strength by 2.3, 7, and 2 times as compare to batch 1, respectively. Moreover, the impact resistance of fiber reinforced concrete has increase by 7 times as compared to non-fiber concretes. Moreover, the impact resistance of fiber reinforced concrete consistently gave better results as compared to non-fiber concretes. The fiber reinforced concrete turned more ductile as the dosage of fibers was increased and ductility started to decrease slightly after optimum fiber dosage was reached. It was found that concrete with combination of 2% steel and 0.2% drink cans fibers showed the highest compressive, split tensile, flexural as well as impact strength.    

Recycling of Disposal Syringe Needles to Produce Fiber Reinforced Concrete

2018 ◽  
Vol 9 (4) ◽  
pp. 148 ◽  
Author(s):  
Ahmed Mohammed Ahmed ◽  
Muitiz Ibrahim Ali ◽  
Abbas Hadi Abbas
Keyword(s):  
Reinforced Concrete ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced
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