types of steel used in construction

What Is RCC Concrete | Reinforced Cement Concrete | Properties of RCC Concrete | RCC In Construction7 min read

What Is RCC Concrete?

RCC full form is reinforced cement concrete, which is a composite material made from concrete and steel reinforcement. As we knew that the concrete is weak in tension and strong in compression. Therefore, Steel reinforcement is added in concrete to improve its tensile resistance.

In the civil engineering field, concrete is a material made of Cement, Sand, Mortar, Admixture, etc, and has a different grade based on strength. As we know that concrete is can resist compression very well, but is very weak in resisting tension. Hence reinforcements are introduced in the concrete wherever higher tensile stress is expected.

When steel is provided in cement concrete it becomes RCC Concrete. The most popular reinforcement is steel. This is due to the fact that steel has high tensile and bond strength compared to others and also provides strong concrete. Steel has a high modulus of elasticity so that it can resist much more high tensile force for the same amount of extension compared to concrete.

Read More: How Long Should Concrete Be Cured Before Removing Forms


Types of Reinforcement Used In RCC Concrete

There is a various form of steel reinforcement available in the market for construction like reinforcement bars, prestressing wires and strands, rolled steel sections and light-gauge steel sections are the major steel forms that are generally used in building construction.

Steel bars have come in many shapes and grades or strengths. These steel bars are of some specified tensile strength, used to reinforce concrete to develop good bond strengths with concrete, and also used for fabrication of grills, gates, etc.

The major type of reinforcement steels available in the market is mild steel, tor steel, TMT bars, etc. The following types of bars are commonly used as reinforced concrete steel for construction.

1. Hot Rolled Steel

There are four types of hot-rolled steel in the market.

The first type is mild steel bars (MS bars) are traditionally produced by hot rolling. The bars are hot rolled and form a round shape with a smooth surface. These bars are also called mild steel plain bars.

Mild Steel Bars Used in RCC
Mild Steel Bars

Mild steel bars come in two grades I and Grade II. Grade I mild steel is slightly higher than that of Grade II. These bars are more resistant to corrosion than tor steel bars.

The hot rolled mild steel ribbed bars are the second type which consists of ribs on them. These ribs help increase the bond strength of the bars. Steel bars with Rebar’s or ribbed bars, which are likely to be confused with HYSD bars, are not recommended to use in R.C works.

The hot rolled high strength ribbed bars are the third type which is produced by hot rolling and got by microalloying which is of high strength.

The Fourth type is HYSD bars; there are hot rolled high yield strength deformed bars. These bars are now replaced by TMT bars.

Read More: Building Construction Step By Step Process


2. Cold Twisted Deformed Bars (Tor steel)

Cold Twisted Deformed Bars or Tor steel bars were the first high-strength bars used in India. These bars are first hot rolled in the mill and formed high-grade mild steel with three or more parallel straight ribs on them.

Cold Twisted Deformed Bars or Tor steel  Used in RCC
Cold Twisted Deformed Bars or Tor steel

As the projection on steel is like a straight line this steel is easily identified in the field.  Also, they will form a helical around the bars in cold twisting.

This steel is more susceptible to corrosion much quicker than other bars, which are not recommended for use in many advanced countries.


3. TMT bars

TMT stands for Thermo-mechanically Treated Reinforcement Bars are manufactured by sudden quenching of red hot steel bars by a spray of water can produce steel bars with high strength at the surface with a core of mild steel.

At the end bar structure with tempered martensite on the periphery and a fine-grained ferrite-pearlite structure at the center zone. TMT bars are also manufactured with ribs (rebar’s) to increase the bond strength of the bars.

TMT bars Used in RCC
TMT bars

TMT corrosion resistance steel (CRS) is also available in the market. The corrosion resistance property of TMT bars is achieved by the addition of corrosion-resistant elements like copper, phosphorus, and chromium.

Compare to Tor Steel the TMT bars are more corrosion resistant and are highly recommended to use in reinforced concrete works. These bars are manufactured with four grades – Fe 415, Fe 500, Fe 550, and Fe 600.


4. Welded Wire Fabrics

They consist of weldmesh manufactured from medium tensile steel drawn out from diameter mild steel bars. Wires fabrics have higher than that of mild steel.

 Welded Wire Fabrics Used in RCC
Welded Wire Fabrics

These wire fabrics are available in different-width wire rolls, which are very much used in partitions, fencing, etc., and sometimes in R.C slab construction.

Read More: Methods Of Damp Proofing House Construction


Properties of RCC

  • It should have sufficient compressive strength.
  • It should have Adequate tensile strength
  • High Fire and weather resistance
  • It should be a Durability material.
  • Economy to molded any shape
  • Low maintenance cost
  • The economy as a construction material
  • Less deflection
  • Use as precast structural components
  • Less skilled labor

Uses of RCC Concrete

RCC uses in construction are as follows,

  • Reinforcement Concrete forms the major structure of building structure. All main load baring components of the building are made with RCC. For Example Footings, Columns, Beams, Chejjas, roofs, slabs, and Stairs.
  • RCC is also used for the construction of storage structures like Water tanks, Dams, Bins, silos, and bunkers.
  • It is used for the construction of large infrastructure projects like Bridges, Retaining walls, Docks, and harbors, Underwater structures.
  • RCC is also used for precast element casting like Railway sleepers, Electric poles
  • It is used for constructing tall structures like Multistory buildings, Chimneys, Towers.
  • RCC is used for Paving Work for Roads, Airports.

FAQs:

Reinforcement Cement Concrete

RCC full form is reinforced cement concrete, which is a composite material made from concrete and steel reinforcement. As we knew that the concrete is weak in tension and strong in compression. Therefore, Steel reinforcement is added in concrete to improve its tensile resistance.

RCC Building Means

A building constructed from reinforcement concrete is called RCC building. RCC full form is reinforced cement concrete. Concrete and Steel reinforcement is combined together to form materials that are strong in compression as well in tension.

Meaning of RCC

RCC full form is reinforced cement concrete. Concrete and Steel reinforcement is combined together to form materials that are strong in compression as well in tension.

RCC In Construction

RCC in construction is a composite material made from concrete and steel reinforcement. As we knew that the concrete is weak in tension and strong in compression. Therefore, Steel reinforcement is added in concrete to improve its tensile resistance.

RCC Concrete

RCC full form is reinforced cement concrete, which is a composite material made from concrete and steel reinforcement. As we knew that the concrete is weak in tension and strong in compression. Therefore, Steel reinforcement is added in concrete to improve its tensile resistance.

Read More:

Share This Post

3 thoughts on “What Is RCC Concrete | Reinforced Cement Concrete | Properties of RCC Concrete | RCC In Construction”

  1. Pingback: Building Construction Process from Start to Finish – INTERESTING ENGINEERING

  2. Pingback: Building Construction Process from Start to Finish | Construction Stages of Building a House by; Engr. Kwakauzor E – Jemack Facilities and Engineering Services Limited

  3. Pingback: Construction Materials Price List 2021 | Building Materials Price List | Building Materials List and Price – AMIXAN

Leave a Reply


x

Related Posts

When Do You Need Steels for Property Builds and Refurbishments?
Steel is swiftly becoming more and more popular as a building material across all fields of construction - including in both domestic and commer...
What Is PCC Concrete | Plain Cement Concrete | PCC In Construction | PCC Full Form | PCC Ratio | PCC Grades | PCC Meaning In Civil
What Is PCC Concrete? The term PCC refers to Plain Cement Concrete. PCC is the mixture of cement, fine aggregate(sand), and coarse aggregate ...
Construction Manager Job Description | Construction Manager Duties | Construction Manager Responsibilities
Construction management is one of the crucial roles to play in any construction project. There are various construction management duties in pro...
powered by RelatedPosts
Scroll to Top
DMCA.com Protection Status