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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.
Ductility
Why IRC 37-2012 has taken 90th percentile for pavement design of expressway or NH while they hav taken 80th percentile for state highway design ????????
A smooth backed vertical wall is 6.3 m high and retains a soil with a bulk unit weight of 18 kN/m 3 and φ = 18°. The top of the soil is level with the top of the wall and is horiz
#Determine the smallest value of P and corresponding angle to the inclined plane which is inclined by 30 degree to horizontal to just start the block moving up the inclined plane.
how to find total hardness by EDTA
What is grading modulus?
Improvements to Public Bus Transport: Since buses carry a large number of passengers, improvements in bus transport is a cheap solution. Some of the possible improvements are
AIR ENTRAINING AGENT USED IN CONCRETE OTHER THAN ALUMINIUM POWDER
Q. State different types of chlorination processes available in Railway & market for disinfect ion of water. What type of chlorine used in the above different process. What do you
Determine the horizontal abutment reaction of a rectangular portal frame under increasing central concentrated load
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