Details: surface excavation n.exc 30 cm deep and averaging 15cm deep and getting out in soft/ loose soil complete all as specified and directed. excavation in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in soft/loose soil etc complete all as specified and as directed. all as per item no 02 above but depth exc 1.5m but n.exc 3m complete all as specified and as directed. material and labour for pcc (1:2:4) type b2 (using 40 mm graded stone aggregate) as in foundation filling and mass concrete complete all as specified and as directed. material and labour treating the backfill in contact with foundation at the rate of 7.5 litres of att chemical emulsion per square metre of vertical surface (area of the sub structure in contact with backfill to be measured) complete all as specified and directed. material and labour treating the top surface of filled earth at the rate of 5 litres of att chemical emulsion per s
Sector: Defense