Precast concrete is a type of construction in which concrete is cast in a reusable mold and then cured in a controlled environment (called a precast plant) before being used for construction. The casted structural member is then transported to the construction site and erected. It is a structural material used for constructing concrete frames, walls, and floors.
In our today’s guide, we are going to share everything you need to know about precast concrete. In other words, if you are looking for precast concrete products manufacturers or want to buy the best product for your next project, you have come to the right place.
We present everything you need to know about Precast Concrete Suppliers in Bangladesh. As a result, you will be able to find the best suppliers and why you chose them.
What Is Precast Concrete?
A precast concrete structure is a reinforced concrete structure that is constructed through industrialized methods. Precast concrete buildings are made up of components manufactured in a precast concrete plant and transported to the site by special equipment. Using reusable molds, precast concrete is cast in a controlled environment and then cured before being transported to the construction site.
Due to the fact that the elements are manufactured beforehand, precasting reduces the duration of construction. Concrete precast structures are reinforced with reinforcing bars, high-tensile steel strands, or both. A precast concrete structure is composed of a number of individual concrete members, which are cast in a variety of forms before being assembled.
Uses Of Precast Concrete
Strength, durability, and affordability are among the reasons why precast concrete is used for structural systems. The following are some of the uses of precast concrete:
- It is used to create beams, columns, floor slabs, foundations, and other structural members of buildings.
- For the purpose of making walls or cladding panels for buildings, for example.
- For making precast prestressed elements that will be used in buildings.
- As part of infrastructure projects, components such as bridge spans and metro line viaducts are often precast in a casting yard in order to improve their durability.
- In order to produce products such as precast water tanks, septic tanks, drainage chambers, railway sleepers, floor beams, boundary walls, and water pipes, it is necessary to manufacture precast water tanks.
- As it can be molded into any shape, it can also be used to create unusual one-off forms such as boats, sculptures, and so on.
Types Of Precast Concrete
1. Precast Beams:
In general, beams fall into two categories:
- Internal Beam: In this beam, floor loading is almost symmetrical.
- External beam: In this beam, floor loading is mostly symmetric.
2. Precast floor slabs:
Among the main varieties of slabs described in these frames are:
- Hollow-core block.
- Double Tee Block.
3. Precast concrete walls:
A prefabricated concrete wall serves as a stabilizer, and stairs and shafts are carried by walls or boxes.
There are also two types of walls: infill walls and cantilever walls.
- Infill walls are considered to be composite action designed with beams and columns.
- A cantilever wall or box acts as a deep beam that tilts the frame.
4. Precast Stairs:
For the stairs formed, three options are available:
- All flights and landings are part of a single formed unit.
- One piece is used for parts of flights and landings.
5. Precast Column:
If the building is five stories or less, each column can be continuous throughout the building’s height.
In general, the following types of pillars are formed:
- Edge column: In one direction, they are symmetrical.
- Inner Column: The columns are symmetrical in all directions.
- Corner column: The columns are not symmetrical.
Advantages Of Precast Concrete
In residential and commercial projects, precast concrete allows engineers to plan and design more freely. In precast concrete products, the design is completely customized, and the product is ready for quick installation once it arrives on site. As a result, you can accelerate your project’s schedule and save money when you use precast concrete products since they are precast offsite.
In addition to convenience and workflow, precast concrete products offer versatility, control, efficiency, and sustainability – all of which make them superior to conventional products.
The use of a precast yard or factory allows construction to be easier for the following reasons:
- Instead of working at height, the construction is done on the ground.
- Rain, dust, cold, and heat cannot be a problem inside a climate-controlled structure.
- A specialized formwork (mould) can be built to produce many identical components at the same time.
- It is possible to make, move, and pour liquid concrete with specialized equipment.
- The curing process takes place in a controlled environment.
- The quality of precast components can therefore be very high.
Due to the fact that components can be made ahead of time, construction can be completed very quickly. Due to the fact that concrete typically takes 28 days to reach its full strength, engineers must build each set of components after the previous set has been completed.
Precast concrete Manufacturing Process
Precast concrete elements are produced under controlled conditions in enclosed factories. This enables accurate control of tolerances, reduction of waste, and improvement of concrete quality.
After being cast into forms, concrete is left to cure for a period of time. Steel or plywood are usually used for precast forms. Unlike plywood forms, steel forms can be used to precast a virtually unlimited number of castings, depending on the form’s complexity.
Steel reinforcement is generally incorporated into precast elements to resist loading stresses. However, these reinforcements are commonly corrosion-related to the deterioration of concrete structures. Therefore, the right design and embedding of these devices in the concrete are vitally important.
A concrete mix can contain admixtures during the manufacturing process. Many types of these additives include water-reducing, air-entraining, retarders, and accelerators (which accelerate curing time). It is possible to improve both the quality of fresh concrete and that of hardened concrete by using additives. It is also possible to add pigments such as iron oxides (red and brown), chrome oxides (green), and cobalt oxides (blue).
Prestressed concrete is introduced into the structural member during precasting to strengthen and improve its performance.
Consider Safety When Installing Precast Concrete
Installing precast components on-site can be a high-risk activity that involves heavy equipment, cranes, and personnel working at height. As a result, it is important to consider safeguarding against risks when receiving delivery, moving, and placing units.
The following considerations should be taken into account:
- Assembly and erection methods and sequences.
- A method of providing temporary support.
- Details of structural connections and joints.
- Tollerances.
- Requirements for handling and rigging.
- Accessibility of the site for delivery and storage.
- Working clearance for hoisting and crane capacity.
- Measurement of samples to confirm critical dimensions are accurate.
- Checking for defects in the concrete finish visually.
- The location and conditions of lifting inserts for hoisting.
Precast Concrete Suppliers in Bangladesh
No matter if your project is similar to one of the precast concrete structures or buildings mentioned above or something entirely different, if you choose precast concrete, you’ll need to hire precast concrete beams suppliers. You need a manufacturer who can produce the materials you need to complete the job and meet your specifications if you are looking to maximize the benefits of precast concrete foundation. Some advantages to precast concrete construction are lost when reputable precast concrete pile suppliers do not manufacture it.
There are many precast concrete manufacturers available in Bangladesh. Mega Depot and SIMEX Bangladesh are the best among them in terms of product accuracy and customer service.
Mega Depot:
Mega Depot has been producing high-quality precast concrete products for many years. The products that we manufacture are precisely tailored to your specifications and arrive at the job site ready to be installed – saving you time and money. Despite its apparent safety attributes, precast concrete is uniquely designed to eliminate unnecessary risks of injury. For flawless installation and maintenance, precast concrete pile suppliers offer excellent post-sale services.
SIMEX Bangladesh:
The company SIMEX Bangladesh is a leading manufacturer and supplier of a wide range of precast concrete products that meet world standards. If you are looking for Concrete Products, then SIMEX Bangladesh is the right place to start. It is their goal to assist you and your company in building quality, durable products that you want and need while still keeping safety, control, and timeliness at the forefront during the entire construction process.
Why Choose Mega Depot For Precast Concrete?
We at Mega Depot offer a wide variety of Precast concrete for sale and masonry products, including precast and prestressed concrete products, that make it easier and simpler for you to complete your construction projects. For the last many years, we have been serving the Bangladeshi market. As a company, we pride ourselves on the quality of everything we do, whether it is the quality of our products or the quality of the service we provide to our customers.
Mega Depot is a company that has the experience, knowledge, and high-quality products that you can trust when you need precast concrete products. So whether you need precast or prestressed concrete for your next project, get in touch with us today to discuss your precast or prestressed concrete needs.
Final Verdict
At the end of it all, you now know a lot more about precast concrete suppliers in Bangladesh. There are precast concrete products all over the place. Their role is crucial in maintaining a clean, healthy, and productive environment both above and below ground.
So if you’re looking for decorative precast concrete Mega Depot is happy to help! As a reliable team of precast concrete experts, we take great pride in getting the job done right the first time. In case you are looking for a smart solution to a complex challenge, you have come to the right place if you are looking for one.