Tag: basic knowledge

This is the very basic and important knowledge that every civil engineer must have. It can be useful at various places of technical as well as practical field.  CONCRETE GRADES WITH THEIR MIX PROPORTIONS:M-5 = 1:4:8M-10= 1:3:6M-15= 1:2:4M-20= 1:1.5:3M-25= 1:1:2 CONSIDERATION OF CLEAR COVER TO MAIN REINFORCEMENT:1.FOOTINGS : 50 mm2.RAFT FOUNDATION.TOP : 50 mm3.RAFT FOUNDATION.BOTTOM/SIDES : 75 mm4.STRAP BEAM : 50 mm5.GRADE SLAB : 20 mm6.COLUMN : 40 mm7.SHEAR WALL : 25 mm8.BEAMS : 25 mm9.SLABS : 15 mm10.FLAT SLAB : 20 mm11.STAIRCASE : 15 mm12.RETAINING WALL : 20/ 25…