civil engineer

USEFUL CIVIL ENGINEERING TIPS FOR SITE ENGINEERS: 1.   GRADE OF CONCRETE:- M5 - 1 : 4 : 8 M10 - 1 : 3 : 6 M15 - 1 : 2 : 4 M20 - 1 : 1.5 : 3 M25 - 1:1:2 2. CLEAR COVER TO MAIN REINFORCEMENT:- Footings: 50 mm Raft Foundation (Top) : 50 mm Raft Foundation (Bottom): 75 mm Raft Foundation (Side) : 75 mm Beam: 25 mm Strap Beam: 50 mm Column :40 mm Slab: 15 mm flat Slab: 20 mm Staircase: 15 mm Retaining Wall: 20 – 25 mm Water Retaining Structures: 2 0- 30 mm. Maximum water absorption by bricks – 15% Compressive strength of bricks – 3.5 N/mm2 Density Of Bricks- 1600-1920 Kg/m3 Minimum thickness of slab – 125 mm Dimension tolerance for cubes – +2 Maximum free fall of concrete – 1.50 m Lapping should not be used for the bars having larger dia than 36 mm. Binding wire required for steel reinforcement – 8 kg per MT 3 samples should be taken for every 100 m2 in core cutting test. Maximum chair spacing – 1 m. Minimum dia should be used in dow...