what is periode of deshuttering for different area of slab
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Answer Posted / saiprasad malandkar
Deshuttering time as per IS-456-2000
IS 456-2000,clause-11.3.
Type of Formwork minimum period
a) Vertical formwork to columns, walls, beam 16-24 h
b) Soffitformwork to slabs (Props to berefixed immediately afterremoval of formwork) 3 days
c) Soffitformwork to beams (Propsto be refixed immediately afterremoval of formwork) 7 days
d) Propsto slabs: 1) Spanning up to 4.5 m 7 days
2) Spanning over4.Sm 14days
e) Props to beams and arches: 1) Spanning up to 6 m 14 days
2) Spanning over6 m 21 days
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