An close industrial approach to look into Pre-cast mode of construction
- 1. PRE-CAST BUILDING A Modern Era of construction practice… ~ Shanmukha Srinivas B G (R131026)
- 2. CONTENTS • INTRODUCTION • PRE-CAST TECHNOLOGY CODE OF PRACTICE PRODUCTION ERECTION GROUTING TOPPING FINISHING MARKETING • NON CONVENTIONAL TERMINOLOGY • SHIM PAD • HALF SLAB or LATTICE GIRDER SLAB • PALATE • ERP • CONCLUSION
- 3. INTRODUCTION • Pre-cast technology is a growing method of construction practice all over the world. • Although the technology is in India from a long time, there is very less lean towards this mode due to its many construction drawbacks. • SOBHA constructions for the first time has almost minimized the lose and started its first ever Pre-cast construction in Bangalore.
- 4. PRE-CAST TECHNOLOGY • No Brick is seen in site. • Organized planning and execution • Every element is manufactured in a Plant beforehand. • And can be tested even before placing. • Attach elements likewise and grouted for its fixture. • No Plastering required • Faster pace in construction • Placing of elements is the only man power required.
- 5. CODE OF PRACTICE INDIAN STANDARD • IS 15916 • Building Design and Erection Using Prefabricated Concrete - Code of Practice • Section Name: Planning, Housing and pre-fabricated construction (CED 51) HONG KONG STANDARD • Code of Practice for Precast Construction 2003 • Section Name: Code of Practice for Precast Construction 2003 • Currently used in the site of Dreamacres
- 6. PRODUCTION • Elements (Walls and Slabs) are manufactured in the plant located in the site itself or somewhere near. • Manufactured in two systems: • Circulatory System • Stationary System • Palates: These are the platforms on which the manufacturing process is done. • Circulatory system is for elements of depth less than 300 mm. • Stationary system is for elements of depth more than 300 mm.
- 7. ERECTION • Once the elements are ready, they are barcoded and are sent to the site for construction. • The process of placing and fixing of those elements is known as erection. • Tower or Mobile cranes are used to lift the elements. • Anchors are placed in the elements for lifting. • Grouting plays an important role in the erection. • The Dowel tubes in the Dowel bars of the adjoining elements are grouted to impart strength and connection. • Push-Pull supports, Doka Supports, Hinge Supports are used to keep Elements in position till the setting time.
- 8. GROUTING GROUT MIXER DOWEL TUBE GROUTING ELEMENT FIXTURE GROUTING
- 9. SHIM PAD • Essential Erection Equipment • To maintain the level of elements on the floor • Has different thicknesses like 1,2,3,5 & 10 mm • Made up of either plastic or stainless steel
- 10. TOPPING • Also can be generalized as Moulding. • Half-slabs are manufactured in the plant with a thickness of 65 mm and having Lattice Girders. • Rest of the slab is filled in situ. • The Electrical and Plumping conduits are easily placed in this method of Topping. Before topping, the element loops has to be grouted with grout material after placing a Shear rod.
- 12. FINISHING • No need for Plastering. • Putty work is minimal • Less leakages through walls. • Mineral and Bitumen sheets are provided in order to reduce the water seepage. • Internal Design is very much similar to any conventional one. As the Dream acres is apartments for High Life style people, the Finishing is very important and is being worked as such.
- 13. MARKETING
- 15. CONCLUSION • Pre-cast is a brand mode of construction. • It is faster and easier to construct compared to conventional methods. • Eco friendly. • Earth Quake resistant to the maximum extent. • Less labor is an asset for this construction. • Efficient in most of the aspects. • I enjoyed a lot during the Intern Period…!
- 16. REFERENCES • https://archive.org/details/gov.in.is.15916.2011 • https://www.bd.gov.hk/english/documents/code/cppcc2003. pdf • Content RGUKT • Project records – SOBHA LIMITED
- 17. ~ Shanmukha Srinivas B G