I'm puting roof slab M20 Design Concrete,Twoway slab how
many days wait for remooving of shuttering?

Answer Posted / s.prabhu

as per IS456 Centering deshuttering period is depends upon
the span of the beam / slab.

Span less than or equal to 3m is 14days

Span more than 3m is 21 days.



Regads
S.PRabhu
9901702081

Is This Answer Correct ?    2 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can compresive strength test for concrete at 1 day age possible to carry out? If yes, which IS code describes the procedure for such testing?

1580


Which are the top apps for you civil engineer?

717


WHAT THREE SPECFIC JOB POSITIONS TO YOU TARGET FROM THE COMPANY?

1587


Explain what is Hybrid Foundation?

739


primary treatment of sewagw consist of removal of floating materials removal of sand & grit removal of organic materials all above

1634






01. a. Diagram of a slump cone…………… 1 b. Size of Slump Cone…………… 1 c. Volume of a slump cone by av. Dia method…………… 1 d. Volume of a slump cone by av. area method…………… 1 e. Volume of a slump cone by frustrum method …………… 1 f. Angles of slump cone …………… 1 g. Slump measured by slump cone due to…………… 1 h. Slump does not measured by cylinder / cube due to …………… 1 i) ii) i. Slump cone is to be filled in……………………..Layers.

5056


Please design 12.5m long dubbly beam

1471


Design a reinforced concrete combined footing (rectangular) for two columns located 3.60 metres apart. The overall sizes of the columns are 40cm x 40cm and 69cm x 60cm and the loads on them are 1000 kn and 1500 kn respectively. The space available for the width of the footing is restricted to 180cm. The S.B.C. of the soil is 280 kn/mm2 use M15 concrete.

2184


LET ME KNOW HOW IS CALCULATE RUBBLE WALL .3'00" IN BOTTOM 1' 6" IN TOP HEIGHT 8' 0" AVERAGE. length 200'00". please give correct answer.

1604


what is the use of water bar in water tank and is this an extra item in estimate?

2110


Design a cantilever type retaining wall to retain sand for 4m above the ground. The sand fall slopes at the rate of 1 vertical to 2 horizontal. The weight of sand is 18000 N/m3, the angle of repose being 30. The safe bearing capacity of the soil is 200 kn/m2 at 1/25m below the ground level. Use m 15 concrete mix.

2372


why we are using stub column..? is it possible to construct steel stub column..?

1506


how many type of admixtures for water stored structure?

1714


Volume of 25kg putty bag & 40 kg putty bag volume??

1585


what is meaning of inverted beam.is it way to provide double mat in slab one at bottom and another at topif we go for provision of inverted beam. shall we construct structure with out plinth beam for us we have to construct small bus shelter

2019