Equipment and Materials Required:

1. Flex Formwork System Components: Primary beams, secondary beams, adjustable props, drop heads, plywood panels, edge formwork.
2. Concrete Mix: As per the design specifications.
3. Measuring Tools: Spirit levels, measuring tapes, plumb bobs.
4. Safety Gear: Helmets, gloves, harnesses, etc.

The Flex Formwork System is a versatile and adaptable method used for the construction of beams and slabs in reinforced concrete structures. Unlike traditional formwork systems, the Flex system is modular, allowing it to be easily adjusted for different geometries, heights, and spans. It is composed of lightweight aluminum or steel components, making it ideal for high-rise buildings, bridges, and other structures that require efficient and reliable formwork solutions.

Procedure:

1. Site Preparation:

• Inspection: Ensure the construction site is level and free from debris.
  
• Marking: Mark the layout for beams and slab according to the design plans.
  

2. Installation of Flex Formwork System:

Setting Up Props:

• Place adjustable props at the marked locations with the help of Tripod stand, ensuring they are spaced according to the design. Adjust the CT props using Tripod stand.
  
• Adjust the height of the props using the screw jack to achieve the desired level.
  
• Place the Fourway Head over CT props.
  
• Repeat above steps throughout the floor along all columns.
  

Placement of Aluminium Beams:

• Place the Aluminium beams horizontally on top of the props.
  
• Ensure they are level and spaced correctly according to the structural design.
  

Installation of Timber Beams:

• Place the Timber beams perpendicular to the Aluminium beams.
  
• Secure them using the drop heads, which will allow for early removal.
  

Laying Decking Panels/sheeting:

• Place plywood or decking panels/ sheeting on top of the secondary beams to form the surface for concrete pouring.
  
• Ensure the panels are flush with each other and secure them in place.
  

3. Reinforcement and Edge Formwork:

Reinforcement Installation:

• Place reinforcement bars as per the structural design within the beam and slab areas.
  
• Ensure they are correctly positioned and tied securely.
  

Edge Formwork:

• Install edge formwork around the perimeter of the slab to contain the concrete during pouring.
  

4. Leveling and Inspection:

• Check Levels: Use a spirit level to ensure the formwork is perfectly horizontal.
  
• Adjust Props: Make any necessary adjustments to the props to correct any discrepancies in height.
  
• Final Inspection: Ensure all components are secure and aligned as per the design.
  

5. Concrete Pouring:

• Mixing and Pouring: Prepare the concrete mix according to the design specifications and begin pouring.
  
• Vibration: Use a concrete vibrator to remove air pockets and ensure the concrete fills all spaces within the formwork.
  
• Leveling: Use a screed to level the surface of the slab after pouring.
  

6. Curing:

• Initial Curing: Cover the freshly poured concrete with wet hessian or plastic sheets to retain moisture.
  
• Regular Curing: Continue curing for the required period (usually 7 to 14 days) to achieve the desired strength.
  

7. Dismantling of Formwork:

• Early Removal: After the initial curing period, use the drop heads to remove the secondary beams without disturbing the slab.
  
• Final Removal: Once the concrete has gained sufficient strength, remove the primary beams, props, and edge formwork.
  
• Safety Checks: Ensure all workers are using appropriate safety gear during dismantling.
  

8. Inspection and Documentation:

• Final Inspection: Check the concrete surface for defects such as honeycombing, cracks, or misalignment.
  
• Documentation: Record observations, including any issues encountered during formwork setup, concrete pouring, and dismantling.
  

Conclusion

The Flex Formwork System provides a flexible, efficient, and cost-effective method for constructing beams and slabs in concrete structures. Understanding both the theory behind the system and the practical steps involved in its use is essential for ensuring the quality and safety of the finished structure. This experiment allows for hands-on experience in setting up, adjusting, and dismantling the Flex system, which is valuable for both engineers and construction professionals.