Precast Advantages & Disadvantages
That can be used to speed up your construction?
Precast Advantages
Flexibility
Large span floor system leads to more flexibility as internal columns are avoided.
Safety
Concrete does not burn and prevents the spread of the fire from one building to another.
Durability
Concrete is used where the structural stability has to be maintained for long periods.
Quality
Precast structures is under controlled and adhere to the highest standards of quality control.
What Is Precast
“The casting concrete in its final shape before positioning.”
High Quality
Reinforced Concrete
Prefabricated
Building Components
Assembly
On
Site
On
Site
Advantages of Precast
As precast structure is a solid material.
| Merits | Precast | Cast Insitu |
|---|---|---|
| Speed / Time Saving | Yes | No |
| Quality Control | Yes | No |
| Weather Effect | No | Yes |
| Long Spans | Yes | No |
| Formwork / Scaffolding | No | Yes |
| Design Flexibility | Low | High |
| Finishing at Ease | Yes | No |
| Cost Efficient (Mass Housing) | Yes | No |
| Reusable | Yes | No |
| Merits | Precast | Cast Insitu |
|---|---|---|
| Easy Installation | Yes | No |
| Material Requirement | Less | High |
| Wastage | Less | High |
| Labors on site | Less | High |
| Plaster Requirement | Negligible | High |
| Dimensional Accuracy | High | Low |
| Carbon Emission | Less | High |
| Plant & Machinery is reused for other projects |
Yes | No |
Disdvantages of Precast
As precast structure is a solid material.
| Merits | Precast | Cast Insitu |
|---|---|---|
| Initial Investment | High | Less |
| Steel Consumption | Equal | Equal |
| Concrete Consumption | More | Less |
| Construction Joints | More | Less |
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