Civil Engineering :- Shuttering

SHUTTERING  ( FORM WORK )

Form-Work :- The Temporary structure erected to support the concrete in it's required shape , till it hardens and becomes self supporting in known as the form-work or Shuttering.

Type of Form-work :-

1) Steel Plate :- Size of steel plates are different , generally thick plates are used , following are some of the size available in market. 

• 3'0" x 2'0" x 1"
•  4'0" x 2'0" 
• 1'6" x 3'0"
• 0'9" x 3'0"

2) Playwood :- Plywood should be stuff, water-proof and higher usable value. Generally, plywood is used for the form-work of column and beam . When good surface quality of concrete is required , plywood is used for slab shuttering but it is costlier than steel plates, following are some of the size available in market.

• 4'0" x 8'0"
• 3'0" x 8'0"

Thickness  of plywood should be 10mm to 12 mm.

• Good Form-work

1. The form-work must be water-proofed
2. The form-work should strong to take load of concrete and live loads, etc
3. Form work should not be deflected when loaded.
4. Form work surface should be plain and smooth , joint should be straight.