RCC construction in Bangladesh

Types of reinforced concrete in Bangladesh

RCC Column types based on shapes

• Circular for good architectural views that showcase the outdoors
• It is customary for any construction to be square or rectangular.

RCC Column types according to length

• Short column: if L/B > 12
• Long column: if L/B exceeds 12

where B is the column's width and L is the column's height.

RCC Column types based on moments

• Designed for axial load and moment in two directions, the biaxial column
• Designed for axial load and moment in a single direction, uniaxial columns

Mostly used reinforced concrete types are

Fiber Reinforced Concrete- Concrete with fiber reinforcement uses organic, mineral, and steel fibers to reinforce the pavement.

• Possess a good tensile strength.
• The overall cost is lower when steel fibers or other fibers are used as reinforcement rather than steel rods.

Ferrocement Concrete- It is created by mixing cement mortar with wire meshes.

• Extremely adaptable and light
• It can be manufactured into any required shape and is
• Easy to build.
• Improved lifespan
• Earthquake resilience at minimal cost

Polymer Concrete- It is made by completely swapping out the cement hydrate binders found in traditional cement concrete and then polymerizing the polymeric concrete at ambient temperature to harden it.

• Greater durability
• Adherence
• Chemical resistance
• Resists abrasion

Types of reinforcement used in RCC concrete

Steel that has undergone the rolling process at a temperature higher than its recrystallization temperature (about 1700° F or above) is known as hot rolled steel.

The advantages of hot-rolled steel are-

• Low cost: Less processing is required, which lowers the cost.
• Improved workability: The material is simple to mold and shape since the hot rolling process takes place at high temperatures.
• Little to no internal stress: The steel is slowly cooled throughout the hot rolling process, thus normalizing its structure and removing any internal tensions.

The four types of hot-rolled steel are:

1. Mild steel bars: Hot-rolled rolled mild steel bars have a round shape and a smooth surface.
2. Hot rolled mild steel ribbed bars: These consist of ribs that aid to strengthen the bonds between the bars by having ribs on them.
3. Hot-rolled high-strength ribbed bars: They are created by high-strength microalloying and hot rolling
4. HYSD bars: Hot-rolled high yield strength deformed bars.

Cold twisted deformed bars:

• These bars are made of high-grade mild steel that has been hot rolled in the mill and has three or more parallel straight ribs on them.
• Significantly more quickly prone to rust

TMT bars

High-strength reinforcement bars called Thermo-Mechanically Treated (TMT) bars have a hard outer core and a soft inner core.

Advantages of TMT bars include:

• Great flexibility and tensile strength
• Increased elongation
• Secure from natural disasters like earthquakes
• Their great thermal stability also protects them from any fire incidents.
• Increases their endurance and durability by forming a stronger link with the concrete, which adds 20% more support and strength.

Welded wire fabrics

Welded wire mesh is an electrically fused prefabricated reinforced connected grid made of a number of parallel longitudinal wires spaced precisely and managed by a very reliable automated process.

• Simple and accurate solutions
• Better dependability, efficiency, speed, and quality
• Electrical solid-state control

Uses of reinforced concrete

• RCC is used to construct the building's primary load-bearing components like stairs, roofs, slabs, columns, and footings.
• Is employed in the paving of roads and airports.
• Large infrastructure projects including bridges, retaining walls, docks and harbors, and underwater buildings are built using it.
• Building storage facilities like bunkers, silos, water tanks, and dams.
• Used for the casting of precast elements like railway sleepers and electric poles
• Build tall constructions such as towers, chimneys, and multistory buildings.

Advantages of RCC in construction

• Compared to other construction materials, it has higher compressive and tensile strength.
• RCC structures are more resilient and unaffected by temperatures between -40°C and 60°C.
• Regardless of pH or moisture, there is an excellent bond to the concrete.
• Before the mix hardens, the concrete can be molded into any shape.
• It has a long lifespan and requires little upkeep.
• Possess more fire resistance than solely steel constructions.
• Resistant to corrosion and prolonged stress.
• When compared to building steel buildings, it requires less qualified personnel

Final words about RCC construction in Bangladesh

Constructing the building with the best material is of utmost importance and people should have a clear idea about the construction materials, what they are made of, and how they are going to support the building. We provide the best with our superior expertise and experience.