Frequently Asked Questions

Below are a variety of questions that we are asked on a regular basis. If you don’t find a satisfactory answer to your question here, please feel free to let us know. You can either fill out the form and submit a question from the Contact Us menu, or pick up the phone and give us a call! We’d be happy to help you with whatever questions you have!

1.  What’s the range of precast products? Why prefer them?

Most of the structural parts of a building, such as slabs, walls, stair cases, beams can be built in precast.
Precast concrete comes with a number of advantages across various stages of the construction lifecycle. Precast products significantly alter the overall construction cycle time, come with consistent high quality, have requisite fire ratings and reduce the need of labour on site

2.  What advantages does Prestressed Concrete have over Poured Concrete?

Precast products use Prestressed concrete and thus offer excellent strength to weight ratio. This in turn allows constructing longer spans using Precast concrete as compared to poured concrete. Precast concrete is less prone to cracks and other quality related issues typically encountered with poured concrete.

3.  What is the right time to take the Precast decision? Does it allow flexibility in design?

Inclusion of the precast team during the design development provides maximum benefit. The preliminary designs can be reviewed by the iBuild team for precast compatibility. This way we can incorporate necessary changes at early stage to achieve best economics.

Precast concrete design offers as much flexibility as the traditional methods offer. However, prior planning in design is a pre-requisite to achieve maximum flexibility. Precast systems used with the hollow core technology for floor span much longer than conventional slab beam column structure. This gives a substantial flexibility in design even later as the bearing walls or structural components are less. Changing internal components that are non-bearing is possible. It is also relatively easy to do core drilling for accommodating utility transfers.

4.  What time will it take compared to traditional working process of in-situ?

At present, a total of 25% to 35% time saving can be achieved over the construction cycle. We are considering relatively low figures due to the learning curve of the current human power. Ideally, after initial exposure and execution of one or two cycles, up to 50% time savings are achievable. Several factors, such as the extent of use of Precast components, decide the total time saving.

5.  Is the distance of construction site from iBuild factory a hindrance?

Distances up to 250 km can be economically served and work best in terms of transportation and logistics. For farther distances, quality of roads that provide access to the site play a decisive role. A high-way access means minimum damage and allows usage of bigger components. The components used in construction also decide how much the total distance between our factory and the site can be stretched for retaining the economy.

6.  What is the typical span / grid for iBuild Precast?

Just to give an example, a residential building can be designed by using moment resisting precast frame or using compression structure using shear walls. It depends on the span, design configuration, and so on. For a beam column structure, 7.5 meter grid / span is optimum.

7.  Does iBuild ask for a minimum promise in terms of construction area before placing an order?

The economics of Precast usage depends on the height of the structure and scale of the project. The height decides the kind of lifting equipment required. Typically, for a low rise structures up to three stories or in some cases four stories, mobile cranes can be used and will decide the minimum work feasibility once brought on the site. For taller structure, the cost of the tower crane will justify the quantum of the work. iBuild’s team is always happy to give consultancy on whether to use precast components in your project, and if yes, to what extent.

8.  Can construction work halt due to any shortage of transport or production at the iBuild factory?

Never. iBuild treats transportation as a core service, and therefore does not let it affect the construction work at any site.

9.  How are iBuild Precast products tested?

The iBuild products are tested by an independent body (College of Engineering, Pune) by destructive testing. The test certificates are available upon request. Being manufactured in a factory controlled environment, this is a much superior product than any in-situ product used in construction.

10. Does Precast call for skilled labour on site?

Not at all. In fact, both the total number of skilled and unskilled labor required on site will drop significantly.

11.  Is it possible to shift to Precast in the middle of a project? Also, is it possible to switch to traditional methods after adapting precast?

There is no technical limitation as such to shift to Precast in the middle of a project. However, it needs to be studied and commented on case-to-case basis to see commercial and technical viability.

You can also switch to traditional method after adapting to precast, but you won’t prefer to do it as you’d experience tremendous benefits. It might not be advisable as some of the precast components, especially slabs, are pre-stressed. They have much larger spanning capacity that the conventional slabs cannot offer. This may affect the overall economy of construction while also affecting the design.

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