• Steel’s versatility in design

One of the main reasons for the popularity of TMT material in Tripura in modern architecture is its versatility in design. Steel can create a wide range of shapes and forms, from simple beams and columns to complex curves and angles. This flexibility allows architects to create unique and striking designs that were once impossible to achieve with traditional building materials.

Steel’s versatility also extends to its finish. It can be left raw for an industrial look or painted or coated to match the surrounding environment. This makes it an excellent choice for buildings in urban areas or locations with specific aesthetic requirements.

• Durability and strength

Another reason for steel’s popularity in modern architecture is its durability and strength. Steel is incredibly strong and can withstand extreme weather conditions and natural disasters such as earthquakes and hurricanes. This makes it an ideal material for buildings that need to be resilient and long-lasting.

Steel’s durability also means it requires less maintenance than other building materials, such as wood or concrete. This makes it a cost-effective choice in the long run and is especially important in areas with harsh climates or difficult terrain.

• Sustainable building material

Steel is a sustainable building material that is both recyclable and energy-efficient. Unlike traditional building construction materials in Tripura, such as concrete and wood, steel can be recycled indefinitely without losing strength or quality. This makes it an eco-friendly choice for architects and builders who want to reduce their carbon footprint and create sustainable buildings.

Steel is also energy-efficient because it has a high thermal conductivity. This means that it can regulate temperature and reduce energy consumption, making it an excellent choice for buildings that require heating or cooling.

• Designing with steel

Designing with steel requires specialized knowledge and expertise. At Shyam Steel, we have a team of highly skilled professionals who can provide technical support and guidance to architects and builders. We offer a wide range of steel products, including TMT bars, wire rods, and structural steel, all manufactured to meet the highest industry standards.

Our TMT bars, in particular, are designed for earthquake-resistant construction and have been used in numerous high-profile projects across India. Our TMT bars are made using the latest technology and are treated with a unique Quenching and Self-Tempering (QST) process that ensures superior strength and durability.

• Steel’s Role in Shaping the Future of Architecture

As the construction industry continues to evolve, steel is set to play an even more significant role in shaping the future of architecture. With advancements in technology and manufacturing processes, architects and builders can now push the boundaries of what is possible with steel.

From skyscrapers and bridges to stadiums and shopping centres, steel is an essential building material that offers endless possibilities. At Shyam Steel, we are committed to providing high-quality steel products that meet the needs of modern architecture. Our dedication to innovation and sustainability means that we are well-positioned to play a vital role in the future of architecture and the construction industry.

In conclusion, the best quality TMT bar in Tripura is an essential building material transforming modern architecture. Its versatility, strength, durability, and sustainability make it ideal for architects and builders looking to create innovative and long-lasting structures. At Shyam Steel, we are proud to be a leading manufacturer of high-quality steel products that are helping to shape the future of architecture.

The world has seen such an upheaval of sorts with the pandemic that has damaged growth in many industries. Although most of us do not think of this, but one of the fields that has seen a huge down trend has been that of the construction industry. Rising construction costs, a shortage of labour availability and many more such disturbing challenges have continually impaired a revenue generating business. However, it is heartening to note that as time passed, innovations and trending ideas has gradually revived this industry.

Accepting changes and upgrades in the construction trends has levelled the construction industry to become more competitive and valuable. Here are some constructions trends to watch out for in the next 3 years:

1. Augmented Reality: The two technologies that are at the intersection in the building construction services are Augmented Reality (AR) and Virtual Reality (VR).

AR creates a computer-generated image for the user’s view, whereas, VR can replace the real world with a simulated environment. These two technologies work together as AR is taking over the emerging trends along with VR in the construction arena. AR enables the power of visualising the actual world with the help of a camera lens. It displays critical information about the equipment and construction ideas which can also practically display the associated risks and possible failures. This helps in understanding and correcting the mistakes before even putting them on-site.

2. BIM (Building Information Modelling): BIM is another hot trending construction technology. It can prove to be a game-changer for the building construction service industry as it can represent project development and highly collaborative surroundings in a 3D format. This technology has several benefits for construction companies such as easy accessibility of resources, enhancement in collaboration and convenience in connectivity, throughout the project.
3. Robotic technology: As technology is pacing ahead in the recent years, having robots around in every aspect of life will not be a surprise. This technology is quite relatable when it comes to the construction industry. In the coming years, robots can become the commanding force in the construction industry and they can bring more accuracy and precision to construction.
4. Mobile and cloud technology: The recent technology trends that are ruling the world is mobile and Cloud. Cloud technology enables the storage of unlimited data and retrieving options without burdening the hardware device. With the prevalence of Cloud and mobile technology, it has brought about an increase in competition and hence, to remain in the competition, the best construction material company in Jharkhand is keeping pace with the latest technology in Cloud and mobile.
5. Usage of drones: In this rapidly evolving world, Drone technology is reliable and very helpful for the construction industry. The drone can show a 3D view of the site from above, withstanding climatic extremes, and can help identify solutions for the challenges on the ground.

Constructions, bridges and flyovers, dams, thermal and hydel power plants, industrial structures, high-rise buildings, and subterranean platforms in metro and fast transportation systems are some of the general places TMT bars are commonly used. TMT Bars are thermo-mechanically treated for high yield strength using world-leading temp core-based technology.

Why can’t we simply pour concrete? What’s the role of TMT rebar?

‘Reinforced’ concrete is currently used in almost every structure. The compressive strength of concrete is great (the ability to withstand loads that tend to compress). Concrete, on the other hand, requires steel reinforcement due to its poor tensile strength (ability to withstand elongating loads) and ductility (ability to deform under forces that tend to elongate). Steel, on the other hand, is extremely tensile and ductile. Steel and concrete, when used together, have the potential to withstand all types of forces that can be applied to a structure. Furthermore, when the temperature rises, both steel and concrete expand similarly. This makes them an extremely attractive pair.

Consider steel and concrete to be close companions that compensate for one other’s flaws! Simultaneously, they share characteristics that make them an excellent match!

Why is it called TMT rebar?

Because of the manufacturing process, the best quality TMT bar in Bihar is known as Thermo Mechanically Treated rebars. Water is used to cool hot rolled steel. The core cools faster than the surrounding surface. The outer surface becomes hard and robust as a result of rapid cooling. The core, on the other hand, stays soft and ductile due to the slower cooling rate. The steel is also more corrosion resistant as a result of the manufacturing process.

TMT rebars are Fe550D grade of iron. What exactly does that imply?

The yield stress in N/mm2 is denoted by the number 550. This is the point at which steel begins to ‘give’ or deform. When a force of less than 550 N/mm2 is applied, the TMT rebar will revert to its original shape after the force is withdrawn. To put the great tensile strength of steel into perspective, 550 N/mm2 is the ground pressure imposed by nearly 2,200 elephants stacked on top of each other! The strength of Steel is extremely high tensile.

The letter ‘D’ stands for Ductility, when it comes to the 550D grade, failure usually occurs at 625 N/mm2 or higher. In intense loading circumstances, such as earthquakes, higher ductility is advantageous.

TMT rebar has ribs. Why aren’t they smooth, shiny surfaces?

The ribs on TMT bars from the best saria suppliers in Bihar help the rebar grasp the concrete well. Because of the grip, the concrete and steel become composite materials. After setting, the TMT rods will be difficult to remove from the concrete.

TMT bars’ characteristics

• Withstands earthquakes
• Increased tensile strength and ductility
• Thermal resistance is high.
• Improved adaptability
• Weldability is excellent, with no loss of strength at welded joints.
• Cost-efficient

How are Shyam Steel TMT rebars better than other TMT rebars?

Shyam Steel TMT Bar Manufacturers are frequently referred to as a commodity, with all brands in the market being equivalent. They prioritize research & development behind the scenes, paying close attention to every element of the manufacturing process. 

Shyam Steel TMT being one of the top iron saria suppliers in Bihar assures that every piece of TMT rebar not only meets but also surpasses the set criteria by a significant margin.

The percentage of alloying elements such as sulphur, phosphorus, and manganese is critical for TMT rebar performance. Many construction failures have been documented as a result of the percentage of these alloying elements not complying with industry standards. However, controlling the proportion of these alloying components in the manufacturing process might be challenging at times. Some businesses even make concessions on costly alloying materials such as manganese. 

The best place to buy your TMT material in Bihar is at https://shyamsteel.com/products/tmt-rebars/. Place your order today.

These steel billets are formed straight during the casting process and are considered to be the gentlest & highly moldable structure available at the top construction companies in Arunachal Pradeshand are also the least expensive. These are fundamentally the usual product of the assembling procedure for TMT steel bars. Its formation comes out by liquefying wipe iron & emptying them into throwing machines & cooling them. Their basic usage includes transformation to complete items such as sheets, chunks, bars, or poles at the company’s parent processing plant. They are also sold to various other industries for re-rolling or to transform into completed products. Steel billets aren’t used as an immediate item by an individual purchaser however it is used as a crude material for manufacturing processes.

Let’s take a look at the various applications of steel billets:

• Utilized in further process of metal casting
• Uses as a crude material or feedstock in rolling, expulsion, fashioning along with other metal preparing applications
• Used for making poles, bars or areas dedicatedly shapes
• A great deal of its usage comes in forge or machine shops for the production of machining parts, components and engineering
• Applicable for machined components, fasteners, precision components, turned components, milled components and parts
• They are widely used in development construction, electrical, gadgets, car, waterworks, aviation, producing, transport, clinical, nourishment along with various other progressively modern sectors.

Pros of Steel billets:

• Cost-effective in small quantities
• Provides high-degree of precision
• Minute lead times
• Strong structural parts

They are produced straight away from regular casting or extrusion or indirectly from hot rolling an ingot or bloom. They are also created employing profile drawing or rolling. They also have specific attributes as contrasted and for now, furnished steel bars and products. All the steel billets have a specific grain structure that allows the metal to be handled all the more unpredictably. They are also popular for showcasing a great deal of pliability & flexibility, especially during the varying temperatures witnessed during forming & trim. Steel bars are formed when steel billets are collapse constantly into long wire-like structures.

Staying close to the construction area can be harmful to health, as it sends different impurities that cause extreme disease. Be that as it may, the idea of eco friendly construction has presented a progressive change, resulting in reducing pollution and creating a better environment.

Various Construction Site Pollutions and its Types

At the point when any construction happens, different pollutants are originated from the sites, which cause various kinds of pollutions.

Types:

Contamination from Air

The toxins spread via air can go long distances. The pollutant specially found in the air are – asbestos, PM10 (matters that are lesser than 10 microns in distance across), carbon monoxide, carbon dioxide, nitrogen oxides and hydrocarbons. Most of these come from the construction equipment and generators that run with the help of diesel, and very few generate from the dusts.

Contamination from Water

The waste materials from building cause pollution of water bodies. The different polluting materials can be oil, paints, concrete, glues and other poisonous synthetic substances. Once the underwater becomes polluted, it may affect the property or indoor air quality. Water pollution can cause severe ecological issues. Synthetic poisons like arsenic and mercury produce genuine medical problems, including deadly disease.

Contamination from Soil

The soil can be polluted from the remaining parts of building locales like the sand, concrete and different chemicals that will hamper the growth factor. There will be no more harvest in those polluted soil like before.

Contamination from Noise

The noise that came out from the construction site may affect your wellbeing in many ways as it can cause stress, hypertension, sleep disturbance and etc. Noise pollution can likewise upset the normal environment of birds and creatures. The natural environment of birds and animals can also get hampered due to noise pollution.

How can you Reduce the Above Types of Pollution?

Use of Ecofriendly Materials

Construction contractors should give a try to use eco-friendly materials to reduce pollution and dust. If there is reduce in use of cement and steel then this will hugely impact in emission rates. Materials, for example, locally and reasonably forested wood, bamboo, are feasible alternatives. A more extended solution is reusing materials like steel, recyclable wood and metal.

Use of AI

The convenience of on-location connectivity makes it simpler than any other data intelligence to reduce construction site pollution. Sensors on machine are also able to help in reducing particle emission, including light and noise pollution.

Latest Machinery

Earlier times construction site equipment can cause huge quantity of site emission and pollution. There is a new technology called hybrid which can help construction companies to cut out their natural effect. Power systems and hybrid equipment can bring down fuel utilization and discharges, in this way bringing down the environmental effect.

Top Quality Materials

The selection of building materials has the power to lessen dust and air pollution from construction and junk material. Using of good quality materials like cement, steel, sand, TMT, bricks will always be a good choice. The professional manufacturer will provide you best quality TMT bar which has less carbon & sulphur thus it cause less pollution to the environment and make the structures less breakable and more shock resistant.

There’s a reason why we call our home a “Happy Place”, a place where your mind, soul & body relax. And this is why most of us look to consider house construction with a large investment of our life. However, buying or constructing your new house with the best building material can be a pretty expensive & hectic affair. When the finances are concerned, homeowners tend to look at the ways that can bring down the entire cost of the construction significantly. And with this segment, we will be talking about things you can keep in mind to reduce the building value in India.

Experts agree that little measures taken correctly can reduce the building value by 12-15%. One can save a lot but it depends on the availability of the structure area and that too differs from place to place. However, the average construction cost for a house in India is approx. Rs 1,500 per square feet that vary as per the structure quality factor. Let’s take a look at the common tips you can follow to keep the building price down to your favour:

1. Choose a standard design:

When it comes to building a dream home, people often have ideas that have elaborated designing and too much detailing. What they don’t consider is that the same home will demand more finance to build. You can buy building construction materials with Shyam Steel and stick to a standard design that will provide you stability with the structure as well as the finance. Apart from that, the fancier structure also has less stability and though the structural engineers can form a strong structure, it will add up to the total value of the building construction.

2. Choosing the ideal plot:

Always prefer to choose a plot that is at the ideal location with the correct road level. This is because the expense of construction increases on an uneven or rocky surface. You may get in touch with experts from the best materials construction supplier in Assam to get site supervising done and avoid extra expenses later on.

3. Don’t let low cost confuse you:

During the construction of your dream home, you have to consider the life cycle costs. It’s a common misconception that low-cost housing would involve “low quality/amenity housing” but the reality is that low-cost housing is all about bringing the cost of the house formation without compromising with the amenities & qualities. During your dream house construction, do not only look at the initial cost but also consider the total costs it will sustain during its lifetime. With the help of experts on online platforms, you can choose materials that will last longer without putting a hole in your pocket.

4. Buy in bulk locally:

The best way to bring down the architecture cost of your house is to source the supplies from the best TMT steel bars Manufacturer in Assam along with other materials locally. From bricks, cement, tiles, doors & window, bathroom fittings, pipes and more. Another keynote is to buy things in bulk to save cost but make sure you have ample storage available for the same.

5. Take advantage of technology:

The concept of buying things online is in the trend and it goes with everything from every industry. You can now choose to buy advanced materials through online platforms and get ahead with your dream building. The advantage of such platforms is that they are quick & you save yourself from the hassles of running everywhere.

To select the right mortars for any constructions project it requires proper expertise and knowledge. Before finalizing the correct type of mortar you should know about the structural design requirements.

What do you understand by Mortar?

Mortar is generally utilized for joining module and for plastering the brick surface, which is a solid mixture of mud, lime, concrete or a mix up of these and fine compilation of sand and water.

Uses of Mortar in Construction

1. Mortar is utilized to bind the blocks or stones together in block or stone workmanship.
2. It is utilized to give a soft base between various layers of block for the same pressure distribution over the base.
3. It is utilized to occupy the spaces between stones or bricks for making strong wall.
4. It is utilized in concrete as a support.
5. It is utilized in concealing the joints to improve the look of the building.

What are the Types of Mortar in Construction?

• Type M Mortar

It has the best binding power among all. The base binding strength of Type M Mortar is 2500 psi. Its strength is equal to stone, thus recommended to make use of in outer areas like driveways, fountain areas, absorbing walls etc. It isn’t suitable to use Type M Mortar in places that are uncovered since it has lack of sealing capabilities.

• Type S Mortar

The binding power of this kind of mortar is medium. The base binding strength of Type M Mortar is 1800 psi. It is suggested to utilize for lower level tasks like in pavements, sewerage systems. It is able to bear pressures from an earthquake or any such vibrations. For best construction we need proper mixture of mortars along with top quality TMT bars, steels, bricks, cement, rods and etc.

• Type N Mortar

Type N mortar also has the same binding strength as medium. Yet, its base binding strength is lesser than Type S Mortar, its 750 psi. It comprises of a combination of sand, lime and Portland. It is best utilized in the development of houses and is liked by the average person. Type N mortar is mostly preferred in the building construction which utilizes delicate stone.

•  Type O Mortar

The binding strength of this mortar is low. The base binding strength of Type O mortar is 350 psi. It is generally utilized in insides which have a low loading capacity. Usually, this kind of mortar isn’t utilized in outer constructions where there are high air pressures. Hence it can be applied for repairing purpose of old construction.

Tips for Selecting Right Mortar

It is mandate to take advice from an engineer regarding your construction needs. It is important to mix the construction materials with right proportion to get the perfect result. The key materials which are mixed are lime, concrete, and sand. The ratio decides their binding strength, power and flexibility. The mixture of the mortar must be strong enough to hold the construction.

The construction engineer chooses upon two unique strategies to finalize the materials for mixing to make the exact kind of mortar. One technique is to test in a research laboratory and test the action of the mortar prior applying it. The main element which defines the quality of the mortar is the proportion of the materials and the ratio of water and air in the mortar. The second technique is directly mixing the elements in proper ratio without experimenting.

1. Do a Proper Planning

When you any construction, the first and foremost step should be proper planning. Waste can be reduced with correct organized project. A huge level of building site waste is produced essentially by inefficient buying. So, only order the exact amount of material. Do not buy extra. At the beginning only, you should guide your workers about the materials which can be recycled and reused.

• Manage the Construction Site

An appropriately coordinated building site decreases the chances of committing errors. For example, you should obviously separate and mark waste from recyclable boxes to stay away from confusion and increase efficiency.

• Choose the Correct Seller

Selecting the right sellers is another significant tip in the project that you need to carry out in your development project. The right vendor will offer the necessary types of help and support your economic objectives.

It will not be profitable to sort materials for collection if the reusing service provider doesn’t empty the containers on schedule.

Some reusing service provider offers just a one-stream reusing option, it means that you will not need to pre-sort the recyclable resources.

While such merchants may be costly, they are efficient and make it simple to complete sustainability objectives. You should compare every single vendor prior selecting the final vendor.

• Don’t Demolish, Rather Deconstruct

Different from destruction, the deconstruction process includes knocking down the structure materials independently and protecting them to limit waste.

Recovered materials from deconstruction are usually helpful, reusable, and changed into significant materials that can be utilized in another construction projects.

• Donate or Reuse Good Condition Materials

The materials which are in good condition, try to reuse or donate to charitable organizations before disposing it into the construction container for waste. Use the materials in another project, it will help you save your money and material. Construction materials that can be reused after demolition are wood, glass, metals, concrete, bricks & blocks, plastic, aggregates, etc. If you want to reuse steel, TMT bars in construction, and then those collected rebars must be scrapped by steel melting shop to get new steel.

Conclusion

A lot of debris can be collected while demolishing and renovating a building. It is our duty to keep in mind about the awareness of the environment protection and longevity.

They are either called weighty machines, heavy vehicles or trucks, engineering and construction equipment or heavy hydraulics.

Proper selection of equipment leads to good economy, safety, speed, quality and timely delivery of the project. For all construction process selecting the proper equipment is very essential.

Types of Construction Equipment

There are many types of construction equipment used, which are as follows:

1. Construction Vehicles

2. Equipment for Earth Moving

3. Equipment for Material Handling

4. Equipment for handling other Construction Materials

1. Construction Vehicles

Trailer

A trailer is an motorless vehicle dragged by a controlled vehicle. It is generally utilized for the transport of products and materials including concrete, steel, TMT Bar, rods etc.

Dumper

Used for the purpose of unloading bulk materials frequently on construction locations. Unloaders are recognized from dump trucks by setup.

Tippers

A dump truck, referred to likewise as an unloader truck or tipper truck, is utilized for carrying dumps from construction sites. A tipper is a heavy truck structure fitted with an open-top body, utilized for carrying pile of concrete, crushed stone, soil and other form of materials to and from building locations.

2. Equipment for Earth Moving

To carry out different sorts of digging work like excavation, earthmoving equipment are used. Every earthmoving equipment have their special applications and used mainly for constructing, repairing, demolition.

Excavators

These are famous earth-moving vehicles that highlight a vessel, arm, revolving cab, and moving tracks. These parts give prevalent force to dig and versatility, letting this weighty machine to carry out several actions, from burrowing breaking holes to digging.

Loaders

Loaders are heavy construction machine which used to load or move materials such as demolition debris, recycled material, dirt, gravel, wood logs, snow, rocks etc into a different machinery as a conveyor belt, garbage truck or railroad car.

Bulldozers

A bulldozer is a huge and weighty farm vehicle furnished with a large metal plate used to push huge amounts of sand, soil, stone blocks, or other such material during excavation or construction work and usually equipped at the back with a claw like tool to relax thickly crushed materials.

3. Equipment for Material Handling

Crane

A crane is a machine which is used to lift and lower materials and to move them parallelly. It is designed with an elevator rope, strong cable or chains, and bundles. It is basically utilized for lifting overweight things like TMT bar, steel, blocks, etc and moving them to different places.

Forklift

It is designed in the 20^th century and it is basically an industrial truck, utilized to transfer and lift things within short distances.

4. Other Construction Materials

Conveyer system give a proficient, dependable, profitable and lower-hazard strategy for eliminating garbage and ruin from digging removal sites.

Concrete Mixer

A cement mixer is a machine that regularly combines concrete, like sand or rock, and water to shape concrete.

An ordinary mixer utilizes a spinning drum to blend the components.

Road Roller

A road roller is a compactor-type designing vehicle used to reduced soil, rock, cement, or black-top in the construction of highways and foundations.

In order to ensure the quality of TMT Bar there are certain tests by which you can ensue it. TMT Bars comes in different grades such as Fe 415, Fe 500, Fe 550, Fe 600, the numbers denotes the yield strength.

Which Grade of TMT Bar is best for Construction?

TMT Bars needs to have the perfect combination between strength & flexibility. As per IS Standards Fe 500d Grade steel reinforcement bars has the perfect combination of strength & flexibility. It is mostly recommended for all type of construction purposes.

However to determine the strength & elongation certain number of tests are performed to ensure its quality. The tests are as follows

• Tensile Test
• Yield Stress Test
• Bend & Rebend Test
• Chemical Analysis Test

What is Tensile Test in TMT Bar?

To measure the strength of reinforcement bars Universal Testing Machine (UTM) is used. Upto 32 mm capacity of TMT Bars can be tested without machine as per IS 1786 and above which need to be tested with it.

Calculation

Determine the cross section area of TMT Re-bar.

• Weight of the Re-bar of 500mm = X mm (b) Length of the Re-bar (Area in mm2 = Weight / Length x 0.00785)

IS: 1786 / 2008 (Clause 6.3.1)

Ultimate Tensile Strength =        

What is Yield Stress Test in TMT Bar?

A Material can take stress upto which level? At which level it will begin to deform plastically? These are factors can be determined during Yield Stress Test/0.2% Proof Stress. Until the material reaches to the yield point it will deform elastically and return to its original shape when the applied stress is removed.

The standard procedure is to project a line parallel to the initial elastic region starting at 0.002 strains. The 0.002 strain point is often referred to as the 0.2% offset strain point.

The behavior of the material can be broadly classified into two categories, brittle and ductile. Steel and aluminum usually fail in the class of ductile materials. Glass and cast iron fall in the class of brittle materials. The two categories can be distinguished by comparing the stress-strain curve.

What is Bend & Rebend Test in TMT Bar?

In many cases you can find that TMT Bars are getting deformed. It happens because of wrong handling of the materials. So, one must be careful while bending and re-bending the TMT at construction sites. When bending or re-bending is done at a construction site, it is to be ensured that the bend radii are not formed below the prescribed minimum sizes in the relevant standards. Incorrect bending can severely affect the performance of steel reinforcement in service.

Important Points to be noted while bending TMT Bars

• Bending should be done gradually & slowly. It needs not to be vibrated while performing it.
• Minimum bend diameters have been established for different bar sizes.
• Bending with pipe of hammer should be strictly prohibited
• TMT Bars should not have dirt/mud in it.

It is essential to select TMT Bars that are manufactured at ISP’s where advanced quenching technologies are used while manufactured. Better tensile strength & elongation comes during the quenching. So BIS Licenses, World Class Quenching Technology such as Thermex these are the main criteria to select the best quality TMT Bars.

Bend Test

The bend test consists of bending a test sample of TMT Re-bar through plastic deformation by applying a load against a suitable mandrel until a specified angle (180 degree) of bend is reached. Depending on the requirements of the material standard such as IS 1786/2008; it should be parallel at a specified distance, an insert is used to control this distance. Test is usually carried out at room temperature and the bending arrangement with two supports (S1 & S2) and a Mandrel (M) has been shown below.

The length (L1) of the test piece depends on the diameter (Φ) of the Re-bar and the Test equipment used. If the distance (L2) between the supports is not specified, then L2 can be calculated as follows:

L2 = Md + 3Φ [Md = Mandrel Diameter]

 The mandrel diameter used for different grades of TMT Re-bar for Bend test are given below as per IS 1786-2008

* Φ is the diameter in mm of the test sample

* : The sample shall be considered to have passed the test if there is no rupture or crack visible at the bend (tension zone) portion to a person of normal vision.

Re Bend Test

This test is designed to measure the effect of strain ageing on the steel. Strain ageing is an embrittlement effect, which occurs after cold deformation, by the diffusion of nitrogen in the steel. The risk of fracture on bending is increased as the temperature is decreased, because these steels have decreasing toughness at lower temperatures. Hence,  temperature parameters should be followed as per code for correct result.

The Re-bend test consists of bending a sample of TMT Re-bar through plastic deformation by applying a load against a suitable mandrel to an included angle of 135 degree. The bend sample should be aged by keeping in boiling water (100 degree C) for 30 minutes and then allowed to cool. The sample should be bent back to have an included angle of 157.5 degree. Test is usually carried out at room temperature. The mandrel diameter used for different grades of TMT Re-bar is given below.

The sample which has been used for bend test is not to be used for Re-bend test.

While applying load on the sample bar it is important to ensure that the load is uniform, smooth and vertically downwards. Impulse load should be avoided.

The specified mandrel diameter used for different grades of TMT Re-bar for Re-bend test are given below as per IS 1786-2008.

* Where Φ is the diameter in mm of the test sample.

* The sample shall be considered to have passed the test if there is no rupture or crack visible at the bend (tension zone) portion to a person of normal vision.

What is Chemical Analysis Test in TMT Bar?

Cross section wise 50mm/60mm length sample cutting from TMT Re-bars by abrasives, grinded and polished one side is used for chemical composition testing in a spectrometer. The spectrometer takes 10 to 15 seconds to give results in printed form of a maximum of 26 elements in the TMT. The spectrometer mainly gives the results of the percentages of carbon, sulphur, and phosphorus which are important as per BIS. In case of micro alloyed grade TMT, percentages of chromium, copper, manganese etc. are also shown by the spectrometer.

The maximum allowable percentages of different elements as mentioned in the IS: 1786-2008 are as below:

Basic Construction Safety Guidelines

Construction sites are always exposed to high risk. Because of the kind of work, materials, processes etc. It is important to ensure safety at work starting from the workers, engineers, employees and everyone else. Like the way it is important to use only Verified and Best Quality TMT Bars in the same way few factors are important to be taken care of while working at construction site:

• Wearing Safety Shoes is mandatory while present at construction site
• Wearing Construction Helmet is important while present at site
• Always carry dust protective mask and wear it whenever it is required
• Inspect all the equipments before using and ensure that it is secured
• To deploy an efficient supervisor is important to run all the work at construction site smoothly

Best quality TMT Bars are manufactured by using Thermex Cooling Technology. Manufacturing process of TMT Bars involves Quenching and Self Tempering. As a result core of the TMT Bars become ferrite and pearlite that becomes extremely ductile and hard outer surface as martensite. This combination is non parallel. TMT Bars become highly ductile with extreme Yield Strength and Elongation.

Why Ribs are Important in TMT Bar?

• Ribs provide bonding strength between TMT Bars and Concrete. The structures become strong and for its yield strength works with bond concrete more that helps to withstand the structure during an earthquake or flood. In Seismic Zones Ribbed TMT Bars provide an extra layer of safety.
• The Ribbed on TMT Bars increases the strength. It distributes the load evenly across the TMT bar.
• Ribs ensures better grip in concrete. It reduces the possibility of slipping during construction. TMT Bar increases the lifespan of a construction structure. Because of excellent weldability and bonding the maintenance cost is marginally low that is why it helps to reduce the costing as well.

Ribs in TMT Bars

Reinforced Steel Bars

Steel bars that is circular or semi circular cross section that can be used in RCC (Reinforcement of Cement Concrete).

Ribbed Reinforced Bars

Reinforced Steel Bars are with double rows crosswise ribs. It is uniformly distributed over the entire length and ensures better bonding with concrete.

Nominal Cross Sectional Area

Cross sectional zone that is near to the area of a round bar of same nominal width.

Longitudinal Rib

It is a uniform and consistent distension corresponding to the vertical of the steel reinforced bar.

Transverse Rib

It is a rib on the outside of the steel support bar other than a longitudinal rib.

What is Rib Height of TMT Bars?

It is from where the Rib begins (Transverse or Longitudinal) and up to the surface of the core.

TMT Bar saves upto 17% of steel. It is lighter in weight therefore reduces transportation cost as well. The best quality TMT Bars that are manufactured at Integrated Steel Plant are considered to be the Best. Here we discussed about the Ribs in TMT Bars about which people have less knowledge compared to the other facts of TMT Bars.

High Strength & Ductility comes into the steel for Thermo mechanical treatment. Steel turns into ferrite pearlite structure that means the outer core becomes strong and inside remain soft.

Steps for Manufacturing TMT Bar

Few important facts on Thermo mechanical Treatment

• A consistent austenite forms that is far superior to ordinary steels and the hardening forms during controlled cooling process.
• Carbon ratio in TMT Bars is as low as 0.5% therefore the tensile strength is high and less brittle.
• The tempering is done at 100°C that increases the strength and ductility.
• During Thermo mechanical treatment superior ductility enhances in TMT bars therefore, the austenite causes the balance between Strength and Flexibility.
• The brittle strength increases in TMT Bar relatively. That is why it becomes usable for any type of construction purposes.
• The Martensite structure consists of consistent RIBS that give superior bonding quality of steel bars in RCC.

Thermo mechanical treatment in steel makes it far superior for all type of construction.  TMT Bars gives some unmatched advantages those are:

• TMT Bars comes with better strength & superior Elongation than any other type of steel bars
• It saves up to 17% of steel
• The cost of TMT Bar are lower than other types of steel bar
• For better Ductility & Bendability it is easy to use for any type of construction structure and saves time as well
• TMT Bars are Resistant to Fire and Corrosion that is why worldwide the demand of TMT Steel Bars are higher
• The fatigue strength in TMT Bar is higher so, during the construction it can bend as per the requirement

Therefore, Thermo mechanical treatment makes Steel bars superior construction purposes. It is important to choose only Thermo mechanically Treated Bars (TMT Bars) for construction purpose.