The use of precast concrete in construction is widely regarded as an economic, durable, structurally sound and architecturally versatile form of construction. PBC is continuously making efforts to keep up with the demands of modern society: economy, efficiency, technical performance, safety, labor circumstances and environmental friendliness. Compared with traditional construction methods and other building materials, prefabrication as a construction method, and concrete as a material, have a number of positive features. It is an industrialized way of construction, with inherent advantages & attributes’ R I E F Here’s why you should specify precast concrete on your next project. With all the advantages of using precast concrete, it’s no wonder the civilized world can depend on the inherent quality, value and permanence of precast concrete. _

Speed, Quality, Value, Permanence

Quality Control

Because precast concrete products typically are produced in a controlled environment, they exhibit high quality and uniformity.
Variables affecting quality typically found on a jobsite –temperature, humidity, material quality, craftsmanship – are nearly eliminated in a plant environment. Factory Production ensures increased accuracy and quality of finish and decreases weather dependency. Compared with cast in situ structures, site labour is reduced by between 50% and 80% using precast. Work for following trades is reduced by between 30% and 50% depending on finishes.

Strength

The strength of precast concrete gradually increases over time. Other materials can deteriorate, experience creep and stress relaxation, lose strength and/or deflect over time. The load-carrying capacity of precast concrete is derived from its own structural qualities and does not rely on the strength or quality of the surrounding backfill materials.

Speed of Construction & Build-ability

Speed of construction and tight construction programme is primary consideration in most building projects and this is where precast concrete excels.
Economies are generated through reduced requirements for formwork, access scaffolding and less reliance on wet trades. Reduced on-site supervision by the main contractor is also a saving. Compared to cast in situ concrete, the following savings can be expected:
* Formwork 75% less
* Scaffolding 75% to 90% less
* Wet Concrete 90% less

Durability

Studies have shown that precast concrete products can provide a service life in excess of 100 years. For severe service conditions, additional design options are available which can extend the life of the precast concrete product. This is extremely important when calculating life-cycle costs for a project.

Fire Resistance

Precast concrete is noncombustible. Also, concrete does not lose its structural capacity nearly as quickly as steel, which is now a significant consideration as witnessed in the attacks on the World Trade Center and the towers’ subsequent collapse. Other materials besides concrete and steel are flammable and/or do not perform well in elevated temperatures

UV Sensitivity

Unlike some other materials, precast concrete does not degrade from exposure to sunlight. This is extremely beneficial for above-ground applications.

UV Sensitivity

Unlike some other materials, precast concrete does not degrade from exposure to sunlight. This is extremely beneficial for above-ground applications.

Sound Resistance

Precast structures meet the highest standards for resistance to sound transmission. Test figures show the airborne sound insulation of a 150mm concrete floor is 50 db.

Chemical Resistance

Precast concrete is resistant to most substances.
However, no material is completely immune to attack from aggressive chemical agents. Thus it is wise to choose the material with the longest expected service life. Precast concrete products can be designed to withstand anticipated corrosive agents.

Weather Resistance

Precast concrete is well-suited for exposure to all types of weather conditions. In regions experiencing regular freeze-thaw cycles, the concrete mix can be designed to properly withstand damage.

Reduced Weather Dependency

Precast concrete increases efficiency because weather will not delay production.
In addition, weather conditions at the jobsite do not significantly affect the schedule. This is because it requires less time to install precast compared with other construction methods, such as cast-in-place concrete. Precast concrete can be easily installed on demand and immediately backfilled – there is no need to wait for it to cure.

Watertightness

Precast concrete products produced in a quality-controlled environment and used with high-quality sealants offer a superior solution to watertightness requirements.
Standard watertight sealants are specially formulated to adhere to precast concrete, making watertight multiple-seam precast concrete structures possible.

Ease of Installation

Although precast concrete is quite heavy, nearly all other competing materials require machinery for handling and installation as well. Besides, speed of installation is more dependent on excavation than product handling and placement. Precast does not require the use of special rigging (such as fabric slings) which must be used in order to avoid structural damage while handling materials such as fiberglass. Additionally, because precast products are designed and manufactured for simple connection, many components can be installed in a short time.

Buoyancy

With a specific gravity of 2.40, precast concrete products resist the buoyant forces associated with below grade construction. In comparison, fiberglass has a specific gravity of 1.86 and high-density polyethylene (HDPE) has a specific gravity of 0.97.

Mass

Precast concrete products can act as effective barriers to vehicular traffic due their size and weight. In the current world climate, precast concrete products such as planters, bollards and highway barriers increasingly are being used to provide protection for a wide variety of venues.

Modularity

Because of the modular nature of many precast concrete products, structures or systems of nearly any size can be accommodated.

Availability

Since precast structures are manufactured in advance and stored at the plant, they are readily available when needed at the job site. This ensures competitive pricing and a ready supply, which can save days, weeks or even months on a project over cast-in-place concrete.

Efficiency

Precast concrete products arrive at the jobsite ready to install. There is no need to order raw materials such as reinforcing steel and concrete, and there is no need to expend time setting up forms, placing concrete or waiting for the concrete to cure.

Aesthetics

Precast concrete products are both functional and decorative. They can be shaped and molded into an endless array of sizes and configurations. Precast concrete can also be produced in virtually any color and a wide variety of finishes (acid-etched, sandblasted, smooth-as-cast, exposed aggregate) to achieve the desired appearance for building and site applications.

Environmentally Friendly

After water, concrete is the most frequently used material on earth. It is nontoxic, environmentally safe and composed of natural materials. Buried throughout the world, precast concrete products help convey water without contributing to poor water quality.

Protecting People & the environment

* Precisely use Natural Resources
* Avoids expensive environmental disposal cost
* Can be used… or recycled
* Precast is emission free
* Made in a efficient factory environment

Low Maintenance

Precast concrete requires little or no maintenance, which makes it an ideal choice for nearly any design solution.

Why PBC - Precast Buildcon

PBC designated goal is to become a leading precast concrete solution provider for technically demanding landmark projects in the India. All Precast elements are designed and tailored made to the specifications of the clients. All precast elements are a fit for purpose and ready to use solutions.. We are established to develop Sustainable Architectural & Structural precast systems not only for our client but for the community as well.
It is our firm belief that sharing knowledge on Precast/Pre-stressed concrete keeping environmental issues in mind will be a competitive advantage in the future. We manufacture precast to provide flexible possibility for today and the generation to come.
PBC add value to their client/customers/Main-contractor by reducing cost of the project by:-
* Construction time cost by = 50-60% (Cast-in-situ built vs Precast)
* Labor numbers on site cost by = 50-60% (Cast-in-situ built vs Precast)
* Waste material on site cost by = 40-45% (Cast-in-situ built vs Precast)
* Cost due to less snagging cost by = 40-50% (Cast-in-situ built vs Precast)

Average cost reduction on overall construction 15-35% (Depends upon project, design & timeframe)