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What is Thermo-electric prestressing
We know that, stretched tendons are used in prestressed concrete. Stretching of tendons may be accomplished by using jacks or by other means. Thermo-electric prestressing is just another method of stretching the tendon wiers. We know that if we increase the temperature of a metal, it expands. As the name suggests, in Thermo-electric prestressing, temperature of tendon wires is increased by passing electric current for a short duration. This temperature increase, taking place within 3-5 minutes, may be of an order of 300-400°C. The bars, which may undergo an expansion of about 0.4-0.5% in length, try to shorten at cooling butare checked by fixed anchors at the two ends.
Q. Explain about Bentonite slurry and polymeric slurry? For the construction of diaphragm walls, bentonite slurry is generally used to form a filter cake on walls of trenches t
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What is the Pre-tensioned concrete In Pre-tensioned concrete tendons are kept stretched with suitable mechanisms and concrete is cast into the forms through which stretched ten
The most probable value of the following observations on the same angle (35º 17' 42" ; 35º 17' 38" ; 35º 18' 00" ; 35º 17'; 22"; 35º 17' 42"); is most nearly: 35º 17' 40.8
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Determine the stage of Cracking moment of pre-stress At the stage of transfer of pre-stress in the pre-stressed beam element, only the pre-stressing force and the self weight
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