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Submitted on: 17 October 2014.
Revised on: 23 November 2014.
Accepted on: 05 January 2015.
___________________Computers and Concrete---TECHNO-PRESS
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Submitted on: 03 December 2015.
Revised on: 03 March 2016.
Accepted on: 28 March 2016.
___________________Computers and Concrete---TECHNO-PRESS
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