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State the term - Post-tensioned concrete
In Post-tensioned concrete construction, as shown in Figure, tendons are placed inside concrete and stretched after concrete has attained sufficient strength. In this form of construction, ducts are made inside concrete with the help of tubes or pipes, which are provided in the forms at the time of casting of concrete. After sufficient hardening of concrete, tendons are placed in these ducts, stretched from both ends from outside with the help of jacks or other suitable devices and anchored at the ends of the concrete member. After the anchorage of tendons, tensile force of tendons is transferred to the concrete in the form 'of an equal compressive force. This compressive force, upto its capacity, reduces or eliminates the tensile stresses (produced due to external loads) in concrete.
Given: pretensioned rectangular beam b=6" h=20" f'c=4000psi f'ci=3000psi fti=.165ksi fts=.38ksi fci=1.8ksi fcs=1.8ksi R=0.80 Required: (a)Pi and e to maximize Md+
Q. Segmentally lined and Sprayed Concrete Linings tunnels? The fundamental difference between segmentally lined tunnels and SCL tunnels is that the sprayed concrete in SCL tunn
classification of arches based on their shape are?
GIS AND REMOTE SENSING
derivation for strain energy stored in a body due to torsion
Uses of Cement Cement is utilized widely for the construction of several structures. Some of them are listed below: (i) Cement slurry is utilized for filling cracks in concr
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Q. Draw a neat dimensioned cross-sectional sketches of a - i. New single Line B.G. track in a cutting on a mainline route. ii. New double Line B. G. track on a trunk route ha
Explain the Categories of Air Pollution 1. Ambient Air Pollution Out door environment o Involves complex array of sources and pollutants, meteorological transport of th
The survey has identified the beginning and ending points along an urban arterial highway that require new sidewalks. The first station is located at 5+88 and the second station is
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