Basic Knowledge of Site Engineer

Following few general points to remember for site engineers to make the construction work easier while maintaining the quality of construction.

• Lapping is not allowed for the bars having diameters more than 36mm.
• Chair spacing maximum spacing is 1.00m or 1 no per 1m2.
• For dowels rod minimum of 12mm diameter should be used.
• Chairs minimum of 12mm diameter bars to be used.
• Longitudinal reinforcement not less than 0.8% and more than 6% of gross C/S.
• Minimum bars of square column is 4 numbers and 6 numbers for circular column.
• Main bars in the slabs shall not be less than 8mm (HYSD) or 10mm (Plain Bars) and distributors not less than 8mm and not more than 1/8 of slab thickness.
• Minimum thickness of slab is 125mm.
• Dimension tolerance for cubes +- 2mm.
• Free fall of concrete is allowed maximum to 1.50m.
• Lap slice not to be used for bar larger than 36mm.
• Water absorption of bricks should not be more than 15%.
• PH value of water should not be less than 6.

• Compressive strength of bricks is 3.5N/mm2.
• In steel reinforcement binding wire required is 8kg per MT.
• In soil filling as per IS code, 3 samples should be taken for core cutting test for every 100m2.