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Muhammad yaqoob Farooqi
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Join Date: Jan 2009
Posts: 1

Twisted Bars

02/05/2011 1:24 PM

Why Twisted bars are not using in RCC Construction now a days?
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ba/ael
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Join Date: Nov 2007
Location: Sherwood Park, Alberta, Canada
Posts: 1212
Good Answers: 74
#1

Re: Twisted Bars

02/05/2011 1:51 PM

Twisted square bars were used years ago as concrete reinforcement. The bond strength was not much better than plain bars. Nowadays, deformed round bars are used because of a much better bond between concrete and steel. This results in shorter development length, thus reduced weight of steel.

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Anonymous Poster
#2
In reply to #1

Re: Twisted Bars

02/06/2011 12:24 PM

why Twisted round bars has been obseleted now a days?
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Anonymous Poster
#4
In reply to #2

Re: Twisted Bars

02/08/2011 4:30 PM

Aw! Now you're pulling my leg. A twisted round bar is still round you know.
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durtieduck
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Join Date: Jan 2011
Posts: 668
Good Answers: 3
#3

Re: Twisted Bars

02/06/2011 2:03 PM

unlike the old twisted steel rods, modern reinforcing rods are designed to carry a high tensile loads. more tensile strenghth = more load capacity.
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