¿Cuál de los siguientes enun- ciados es una afirmación correcta sobre el concreto postensado?

a. El tendón siempre se
coloca en la forma antes

de que se vierta el con-
creto.

b. La tensión se aplica

tirando de ambos extre-
mos del filamento simultá-
neamente con una base

niveladora hidráulica

c. Una vez alcanzada la ten-
sión especificada, se deja

que el filamento se
retraiga.

d. Normalmente, un fila-
mento consiste de siete

alambres de ? pulgada
trenzados.


Answer: D

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