Precast concrete is produced in reusable molds and offers various advantages over site-cast concrete, including improved quality, safety, and reduced labor costs. It is preferred for its superior strength, durability, and efficiency in large-scale projects in India, though it does have disadvantages such as challenges in making satisfactory connections between members and transportation costs. Examples of buildings using precast components include Carrara Metricon Stadium and Melbourne Recital Centre.

1. PRECAST - CONCRETE

2. PRECAST - CONCRETE
 PRODUCED BY CASTING CONCRETE IN REUSABLE
MOLD.(CURED IN CONTROLLED ENVIRONMENT)
 PRECAST STONE IS DISTINGUISHED FROM
PRECAST CONCRETE BY USING A FINE
AGGREGATE IN MIXTURE.
 CLOSELY MONITORED BY PLANT EMPLOYES.
 OFFERS MANY POTENTIAL ADVANTAGES OVER
SITE CASTING OF CONCRETE.

3.  PERFORMED ON GROUND LEVEL – HELPS WITH
SAFETY THROUGHOUT A PROJECT.
 CONTROL OF QUALITY OF MATERIALS AND
WORKMANSHIP IN PRECAST PLANT RATHER THAN ON
CONSTRUCTION SITE.
 FORM – CAN BE REUSED 100 TO 1000 TIMES BEFORE
THEY HAVE TO BE REPLACED.
 HAVE TO BE CERTIFIED.

4. APPLICATIONS
WHY CHOOSE PRECAST CONCRETE ?
 PRECAST CONCRETE TECHNOLOGY, THE SO CALLED
UNCONVENTIONAL METHOD IN AN INDIAN SPACE CAN
FACILITATE BOTH SPEED AND QUALITY CONSTRUCTION
AND AT THE SAME TIME EXPLOITS THE ADVANTAGES
THAT THESE LARGE SCALE PROJECTS OFFER IN
TERMS OF VOLUME
TURNOVER AND THE REPETITIONS.

5.  CONCRETE TECHNOLOGY CAN BE EFFICIENTLY AND
EFFECTIVELY
USED ON VARIOUS INDIAN PROJECTS IN THE LIGHT
OF PROJECTS UNDER EXECUTION.
 SUPERIOR STRENGTH , DURABILITY , & OVERALL
STRUCTURAL INTEGRITY MAKE PRECAST CONCRETE
THE PREFERRED BUILDING MATERIAL IN SEEMINGLY
COUNTLESS APPLICATIONS.

6. ADVANTAGES
 SUPERIOR QUALITY IS PRODUCED.
 NOT NECESSARY TO PROVIDE JOINTS.
 LOW COST
 LABOUR REQUIRED IN MANUFACTURING
PROCESS CAN BE TRAINED.
 THE MOULD EMPLOYED FOR PREPARING THE
PRECAST UNIT ARE OF STEEL.
 THIS MOULDS ARE MORE DURABLE
 CAN BE USED SEVERAL TIMES
 CAN BE GIVEN THE DESIRED SHAPE WITH
ACCURACY

7. DISADVANTAGES
 BECOMES DIFFICULT TO PRODUCE SATISFACTORY
CONNECTION BETWEEN PRECAST MEMBERS
 NECESSARY TO ARRANGE FOR SPECIFIC
EQUIPMENTS – FOR LIFTING AND MOVING
 THE AMOUNT TO BE SPENT IN TRANSPORT AND
HANDLING
 IF NOT PROPERLY HANDELED - MAY DAMAGED

8. PRECAST COMPONENTS

9. CHANNEL UNIT
SLAB
WALL PANNELS

10. BEAMS AND COLUMNS
BEAMS
PLINTH BEAM

11. SILL AND LINTEL

12. JOINERY DETAILS

13. COLUMN TO COLUMN CONNECTION

14. WALL PANELCONNECTED TO INSITU CONCRETE

15. CONNECTION
BETWEEN SLABS

16. CORNER CONNECTIONS OF WALL PANELS

17. CONNECTION OF WALL PANELS TO COLUMN

18. CONNECTION SHOWING SOLID WALL AND HOLLOW CORE SLABS

19. EXAMPLES
OF BUILDINGS USING PRECAST COMPONENTS

20. 1. CARRARA METRICON STADIUM

21. 2. KANGAROO APPARTMENT

22. 3. MELBOURNE RECITAL CENTRE

23. 4. ORACLE APPARTMENT