PT Raft is Feasible Under Following Conditions

• If Safe Baring Capacity (SBC) is very low
• If depth of RCC raft is more
• If RCC raft construction is Un-economical
• Non-uniform SBC, Hard Rock Strata in major portion
• High cost of excavation to maintain uniform level
• High Water Pressure

Factors Responsible for Reduction in Cost

• Reduction of material quantities and cost
• Reduction of labour and material handling costs
• Reduced total building height and cladding cost
• Simplified and cheaper formwork
• Reduction in Indirect costs due to faster construction cycle

Advantages of PT Raft

• Reduction In Raft Depth
• Resistance To Water Pressure
• Saving In Concrete Cost
• Saving In Reinforcement Cost
• Saving In Excavation Cost and Support Cost