Strength and Ductility of Fiber-Reinforced High-Strength Concrete Columns

2001 ◽  
Vol 127 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Stephen J. Foster ◽  
Mario M. Attard
Keyword(s):  
High Strength Concrete ◽  
High Strength ◽  
Concrete Columns ◽  
Fiber Reinforced ◽  
Strength Concrete ◽  
High Strength Concrete Columns ◽  
Strength And Ductility

scholarly journals PERFORMANCE OF HIGH STRENGTH CONCRETE COLUMNS REINFORCED WITH HYBRID STEEL FIBER UNDER DIFFERENT LOADING CONDITIONS

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Emdad K.Z. Balanji ◽  
M. Neaz Sheikh ◽  
Muhammad N.S. Hadi
Keyword(s):  
High Strength Concrete ◽  
Steel Fiber ◽  
Reference Group ◽  
High Strength ◽  
Concrete Columns ◽  
Steel Fibers ◽  
Loading Conditions ◽  
Strength Concrete ◽  
High Strength Concrete Columns ◽  
Strength And Ductility

The strength and ductility of high strength concrete columns improve with the addition of steel fiber. This paper reports the behavior of circular High Strength Concrete (HSC) columns reinforced with Hybrid Steel Fibers (HSF) under different loading conditions. In this study, HSF consisted of a combination of macro steel fibers and micro steel fibers. A total of eight circular specimens of 205 mm diameter and 800 mm height were cast and tested. All specimens were reinforced with same amount of steel reinforcements. The specimens were divided into two groups of four specimens. Group RC (reference group) contained no steel fibers. Group HSF (hybrid steel fibers) contained 2.5% by volume of HSF. From each group one specimen was tested under concentric loading, one under 25 mm eccentric loading, one under 50 mm eccentric loading, and one under four-point loading. The results showed that the specimens reinforced with HSF achieved higher strength and ductility compared to RC specimens under different loading conditions. It was also observed that the presence of HSF delayed the spalling of the concrete cover.

Experimental Study on the Bearing Capacity and Ductility of High Strength Concrete Columns Wrapped with CFRP Cloth

2012 ◽  
Vol 166-169 ◽  
pp. 1333-1336
Author(s):  
Zhong Jun Hu ◽  
Yan Xu
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
High Strength Concrete ◽  
High Strength ◽  
Concrete Columns ◽  
Compression Tests ◽  
Strength Concrete ◽  
Axial Compressive Strength ◽  
High Strength Concrete Columns ◽  
Strength And Ductility

By the axial compression tests on a total of 19 high strength concrete columns wrapped with CFRP cloth, the influence of shape section and different layers on the axial compressive strength and ductility is studied. The experimental results indicated: high strength concrete columns wrapped with CFRP in increasing the bearing capacity and ductility of concrete columns is still valid, its effect on the improvement of ductility is much greater than its capacity.

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