1.

The forms are raised by the concrete is in a plastic state and such forms are therefore sometimes referred to as the ___________(a) Climbing forms(b) Jumping forms(c) Riser forms(d) Running formsI had been asked this question at a job interview.I would like to ask this question from Materials Used for Formwork in division Arches, Lintels, Stairs and Formwork of Construction & Building Materials

Answer»

Correct ANSWER is (a) Climbing forms

For explanation: After a set of slip forms is completely assembled on a concrete base, the forms are filled slowly with concrete. When the concrete in the bottom PORTION of the forms has gained sufficiently RIGIDITY, the UPWARD movement of the form is started and it is CONTINUED at a speed that is controlled by the rate at which the concrete sets.



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