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LOSS OF PRESTRESS DUE TO SHRINKAGE OF CONCRETE
We know that concrete shrinks in volume when it dries up. This volume reduction takes place in the form of reduction of all dimensions. A major i reduction of dimensions in a beam element is expected to take place along the length as all dimensions proportionally reduce. The shrinkage of concrete in prestressed members results in a shortening of ensioned wires and hence contributes to the loss of stress. The shrinkage of concrete is influenced by the type of cement, aggregates and the method of curing used.
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At a large port facility near New York City tractor-trailer trucks are lined-up in long queues as their drivers wait to have their containers inspected and documents processed. As
Define the Thiem Equations for Confined Aquifers Using natural log: Q = 2ΠKm(h 2 - h 1 )/ln(r 2 /r 1 ) m = aquifer thickness (ft) Using log 10 : Q = 2Km(h 2 - h
The free float is equal to: a. Latest allowable event occurrence time + Early finish time b. Earliest event occurrence time + early finish time c. Latest allowable event o
concert
Analysis of presress In pre-stressed structural elements, stretched tendons are placed inside concrete. The tensile stresses of the tendons are transferred to concrete in the
Q. Write short notes on Abrasion Test? The abrasion test for ballast shall be carried out using Los-Angeles machine.The abrasive charge shall consist of 12 nos. cast iron or s
haw to control quality of constraction material and it''s stage of control, control management, quality of performance ,organization for control
a pilot entering a bay on course
how can i get the centroids of the a given curve?. is there''s a formula for?
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