https://youtu.be/bm6-vrfdAkA
FOOTINGS ARE PART OF FOUNDATION  .
IT HOLD COLUMN ON IT .
THE CONCERTRATED LOAD COMMING ON THE COLUMNS ARE TRANSFERRED TO THE FOOTINGS WHICH FINALLY SPREAD LOADS TO GREATER EXTENDED AREA BELOW FOOTING TO GROUND.
BEFORE PLACING FOOTINGS SOME PRECAUTIONS:-
https://youtu.be/bm6-vrfdAkAThe Popular 5 Types of Footings
1.THE FOUNDATION EARTH WORK  BEFORE  PLACING FOOTINGS SHOULD EXAMINE  . THE DRAWINGS SHALL BE STUDIED AND MISSING DIMENSIONS SHALL BE OBTAINED.
2. DEPTH  OF FOOTINGS ,SIZE OF FOOTING TO BE AS PER DRAWING .ABOUT 150 TO 200 MM CLEARANCE SHALL BE LEFT AROUND BASE OF FOOTINGS TO FACILIATE WORKING.
3.THE BASE OF SOIL TO BE RAMMED PROPERLY TO GET LEVEL SURFACE WITH SPREADING MOORUM MIXED WITH SAND.
4.150MM P.C.C.WITH 1:4;8 SHALE BE LAID BELOW BASE OF FOOTINGS.
5.EXTRA DEPTH AROUND FOOTINGS BASE SHALL BE FILLED WITH SAND AND COMPACTED PROPERLY.
6.PLACE THE BASE REINFORCEMENTS JALI WITH 40 MM COVER .
7.THE VERTICAL REINFORCEMENT OF COLUMN TO BE PLACED AND ITS VERTICAL POSITION TO BE CHECKED BY PLUM-BOB.
8.THE REINFORCEMENT OF COLUMN TO BE SECURE TIGHTLY WITH THE HELP OF STINGS AND ROPES SO THAT REMAIN  PERPENDICULAR TO HORIZONTAL AXIS.
9.PLACE CONCRETE MINIMUM GRADE M20 OR AS DEFINED IN DRAWINGS.
10.PROPER VIBRATION, TAMPING SHALL BE DONE TO GET DENSE CONCRETE.
11.IF THERE ARE SLOPPED FOOTINGS THEN THE USE STIFF CONCRETE MIX SO THAT IT MAINTAIN SLOPE ABOVE BASE OF FOOTING.
12.CURING FOR 7 DAYS REQUIRED TO START FURTHER WORK ABOVE FOOTING.

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