Why is RCC construction cheaper than precast?
In the realm of construction, there are several different methods to bring a structure to life. From steel frames to concrete, from Precast to RCC construction, each has its own pros and cons—and they come with their own price tag.
However, housebuilders often get confused between RCC and Precast. It is crucial to understand both the construction methods to understand the difference. Housing factory, a residential construction company in Bangalore, will guide you through both the construction processes, their respective time requirements, and the long-term tradeoffs involved, helping you make sense of the cost factor associated.
What is RCC construction?
RCC buildings are built on a strong foundation of steel-reinforced concrete. This means that the building's walls and floors are made of concrete, but a metal is laid inside the concrete to support the structure and prevent weakening over time. The metal used in RCC construction is typically steel.
The incorporation of steel into concrete makes the structure much stronger in tensile strength than regular concrete, which means it can withstand a lot more pressure and stress.
- Steel usually has high tensile strength. This means that the metal can be stretched or pulled under immense pressure without breaking or losing its shape.
- Steel is also resistant to heat, which allows it to remain sturdy when exposed to intense heat, such as that produced by cement mixers and welding equipment.
- Steel is also resistant to corrosion and rusting, making it ideal for outdoor construction projects such as bridges or buildings in damp climates where rain could cause damage over time if the metal is not properly insulated from these elements.
Why is RCC cheaper than Precast?
Precast construction is a method used in multiple industries, including commercial, residential, and industrial buildings. In precast construction, some aspects of the building (such as walls, floors, and ceilings) are cast at different locations. Then, the precast elements are transported to the construction site and assembled or installed directly at the location.
What is Precast construction?
RCC (Reinforced Cement Concrete) construction is cheaper than precast construction. To begin with, only raw materials are required to be transported, which costs way less. Neither do you have to worry about the damage of precast elements in transit or not fitting them together in one vehicle.
In addition, RCC construction requires less labor, and the labor requirements are way simpler and straightforward. For example, the construction process requires you to pour concrete into a mold, which doesn't require much training compared to being trained in carefully assembling precast panels without breaking them. These are just starters; the below-mentioned factors make RCC construction more affordable than Precast.
- Construction time:
- Precast concrete needs curing for at least 14 – 20 days before it can be used for construction. But in the case of RCC, the curing process is done onsite after the plastering is over.
- In the case of RCC, new formwork is not required each time for every beam, slab, or column. Hence, this saves a lot of time compared to prefabricated concrete.
- In the precast concrete method, the casting needs to be done at two different places – one at the factory and again onsite during erection, which consumes more time, skilled labour, and money as well.
- Precast concrete is often shipped to a construction site via different transportation models to ensure safe transit and avoid damage of prefabricated construction elements. Since the weight of precast concrete components restricts the number of pieces that can be loaded onto one vehicle, more vehicles are needed to transport the same amount of cast-in-place concrete. The number of shipments that need to be delivered directly impacts transportation costs for precast components.
- A number of things can go wrong during the casting process, and these defects must be corrected before they can lead to structural failure. A skilled worker will have the expertise necessary to detect and correct these defects.
- Precast components are built in controlled environments. Hence, the labour deployed in this stage should possess a sound knowledge of the technicalities of casting and curing.
- The design of precast structures relies on precise calculations and mathematical modeling to determine the accuracy of weight and other design details. This leads to complex structures with architectural features that demand high levels of precision in order to be executed properly. Only a skilled architect/ engineer can execute such intricate designs with utmost precision and care.
- The distance between the location of fabrication and the destination or construction site determines the cost of transportation. The greater this distance is, the higher the cost per unit of product transported will be.
- One reason behind the higher transportation cost of precast construction materials is their weight. It requires more labour, and it impacts shipping costs.
Talk to our Experts
You might think that prefabricated building components like precast concrete would require less labor, since the work is already done in the factory. But in fact, it takes a lot more skilled labor (at every stage) to ensure precision and efficiency.
The below factors demand skilled labour for precast construction at every stage:
Reinforced cement concrete construction, or RCC construction, is a form of building that uses steel and concrete to construct a structure. RCC construction is more durable than precast construction because the materials used in RCC are very strong and can withstand heavy loads. Reinforced concrete is also very resistant to damage from weather such as earthquakes, windstorms, and hurricanes. In addition to being more durable than precast construction, RCC also costs less per square foot than Precast.
On an endnote, RCC construction is a cheaper option for housebuilders than precast. This is largely due to the reduced cost of materials and labor and the ability to be flexible and adjust the design of your building as needed.
Are you looking for the best house construction company in Bangalore? Then, contact Housing Factory for residential house construction in Bangalore.
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