O20302bAB - Wall And Column Forming Flashcards
If the temperature is low during the placement of concrete, what effect will this have on the forms?
Lateral pressures will last longer.
What kind of pressure does freshly poured concrete exert on column forms?
Lateral pressure
What is the name of the force that tends to twist an object?
Torsion
Lateral concrete pressure exerted on formwork is a type of _______ pressure.
Hydrostatic
The higher the slump the greater the lateral pressure. T or F
T
What happens when hydrostatic pressure is high in concrete?
There is more strain on the forms
Which type of tie makes use of a form clamp on one end and a special tightening wrench on the other end?
Pencil Rod tie
What size of hole is needed in form plywood to accommodate snap ties?
Large enough to allow the end button to pass through.
What are bucks as found in concrete forms?
They form openings in the concrete.
For short radius curve forms, which method should be considered, other than making saw kerfs in thicker sheets of plywood?
Use two or more layers of thinner sheets
When are core forms filled with concrete?
At the same time as columns.