Formwork ppt.pptx12346678:>"{<.??@#$%612

for engineering students

1. Technical Training Institute- Chumey Ministry of Education and Skill Development Department of Workforce planning and Skill Development

2. FORMKWORK

3. Learning Objectives 1 Explain definition formwork 2 States types of formwork materials 3 States types of formwork

4. What is form work It is a temporary moulid used to shape and support concrete until it hardens and gains sufficient strength.

5. Types of formwork materials Timber Steel Plywood Aluminum Plastic Fabric

6. Types of formwork materials Timber Made from wooden planks and boards Easy to cut and shape Lightweight and widely available Suitable for small projects Can be reused only for limited

7. Types of formwork materials 2) Steel Made from steel plates and frames Strong and highly durable Provides a smooth finish with minimal defects Suitable for large projects and repeated uses Expensive but long-lasting

8. Types of formwork materials 3) Plywood Made from thin wooden sheets bonded with glue Provides a smooth finish More durable than timber Reusable and cost-effective Commonly used for slab and beam formwork

9. Types of formwork materials 4) Aluminum Similar to steel but lighter Corrosion-resistant and long-lasting Quick to assemble and dismantle Ideal for high-rise buildings Costlier than timber but highly reusable

10. Types of formwork materials 5) Plastic Made from lightweight plastic panels Waterproof and resistant to corrosion Easy to clean and reuse Suitable for simple and repetitive structures Less strength compared to steel or aluminum

11. Types of formwork materials 6) Fabric Uses flexible fabric sheets to mold concrete Creates unique and curved designs Lightweight and reduces material usage Less commonly used but growing in popularity

12. Types of formwork Column formwork Footing formwork Beam & slab formwork Staircase formwork Cornices formwork

13. Types of formwork Column formwork Column formwork is used for vertical structures like pillars It consist of yoke, cleats, wedge & bolts The two sides & two ends are secured by yokes using bolts The formwork is constructed up to 1.5m

14. Types of formwork Column formwork

15. Types of formwork 2) Footing formwork Footing formwork is used to shape the base foundation of structure It consist of panels and bracing The panels are support by providing bracing

16. Types of formwork 2) Footing formwork

17. Types of formwork 3) Beam & slab formwork Beam formwork supports horizontal structural elements Beam formwork consist of side, bottom and supports Slab formwork consists of panels, props, and beams to hold the slab The slab formwork is supported by means of centering

18. Types of formwork 3) Beam & slab formwork

19. Types of formwork 4) Staircase formwork Types of staircase Straight flight It is a series of flights The number of a steps is not exceed more than 16

20. Types of formwork 2) Quarter run The landing is provided The landing change the direction pf the flight by 90 degrees

21. Types of formwork 3) Half landing stairs The landing is provided The landing change the direction pf the flight by 180 degrees The landing is provided to divides the staircase into two

22. Types of formwork 4) Single Winder stairs The stairs with a turn of 90 degrees The winders are provided to change the direction of the flights

23. Types of formwork 5) Double Winder stairs The stairs with a turn of 180 degrees The winders are provided to change the direction of the flights This type of staircase occupies more space

24. Types of formwork 6) Straight stairs The two flights of stairs going in one direction The staircase is divided into two by providing landing

25. Types of formwork 7) Spiral stairs The staircase are in the form of circle The central vertical post is provided to hold steps

26. Types of formwork Staircase formwork The standard size for riser is 180 to 250 mm The standard size for treads is 210 to 350mm The formwork consist of stringer, struts, supports, bracing etc.

27. Types of formwork 5) Cornices formwork Types of cornices

28. Types of formwork 5) Cornices formwork The formwork consist of timber and PGI sheet The PGI Sheet is fixed in formwork The planks and the sheet is constructed as per the shape of cornices

29. Types of formwork 5) Cornices formwork

30. Thank You