#coated dowel bars in chennai

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The execution errors by the engineer onsite contractor, wrong decisions and supervision lapses of construction head, the stupidity of workers, and the lack of knowledge of standard construction materials and construction processes lead to the low quality of construction work. These deficiencies reduce the load-bearing capacity of the building in terms of strength and also reduce life and durability of the building, which may result in the collapse of building fully or partially due to lack of integrity and homogeneity.

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Reasons behind the Collapse of a Building and What Could be the Preventive Measures?

Whenever a building collapses, whether it is old, during or after construction, under repair, or during natural vulnerabilities, such as cyclone or earthquake, it will send waves of shakes in the minds of the public. People start wondering, can such a disaster happen with them and their family. Of course, there is no basis to be scared, as the rate of collapse of new buildings to the existing ones is negligible.

However, you cannot remain neglectful, as it proves lethal and upsetting for you as well as for your whole family. Thus, this is the correct time to know and identify the reasons for the building collapse and to take preventive and corrective measures if it is applicable to you.

1. The Foundations are not Strong Enough

Properly designed foundation resting on well-compacted soil at adequate depth increase the stability of the building for lifetime and reduce the risk of the building collapse. The foundation may also fail when the soil of footing base is not investigated properly, or they are placed in corrosive soil. Foundations of the building are also affected due to soil liquefaction during Earthquake. The error while designing the foundation also leads to the poor stability of the building. It is in this way that the building may collapse due to the failure of the foundation.

2. Use of Inferior Materials

Inferior materials are those construction materials which do not meet the specification i.e. they lack in size or physical properties (weight, density, etc.), lack of chemical properties, or substandard specifications. The use of inferior materials reduces the load-bearing capacity, i.e. the strength of building. In many parts of the world, particularly developing countries the major cause of the collapse of building is due to the use of inferior materials.

3. Repairing or Restoration/Renovation

The building may collapse fully or partially when unthoughtful alteration or unauthorized construction is carried out at the time repairing or restoration/renovation. During repairing or restoration or renovation, you are subjecting the building to additional load or are trying to change load path of the building or making certain elements under repair, redundant, I.e. they do not participate in resisting load). The change in load path causes excessive stress in structural elements which may be a reason for the collapse of building.

4. Lack of Maintenance

Water leakages, structural or non-structural cracks, spalling of concrete or the honeycombed concrete, loose plaster are the damages of the building which deteriorates the structure. Deterioration of concrete or structural components results in the poor stability of the building due to loss of its proportions i.e. strength. If the buildings are not repaired in time or not maintained regularly, the damages will continue to increase and it may be the reason for the collapse of building fully or partially. Poor maintenance invites corrosion of metal item or carbonation of concrete or degradation due to sun’s heat or UV rays, all leading to cascading deterioration.

5. Faulty Execution & Inadequate Supervision

The execution errors by the engineer onsite contractor, wrong decisions and supervision lapses of construction head, the stupidity of workers, and the lack of knowledge of standard construction materials and construction processes lead to the low quality of construction work. These deficiencies reduce the load-bearing capacity of the building in terms of strength and also reduce life and durability of the building, which may result in the collapse of building fully or partially due to lack of integrity and homogeneity.

What Needs to be done?

1. Build Earthquake-Proof Constructions

A seismic zone map released on September 20, 2016 by the National Disaster Management Authority (NDMA) and Building Materials and Technology Promotion Council (BMTPC) states that 59% of households in India are vulnerable to severe and moderate earthquake.

Effective pre-planning carried out by the government and builders and general awareness in this regard has the potential to save thousands of lives. Thus, it will be a wise step to learn from other earthquake-prone countries such as Japan that is several steps ahead from the rest of the world in building earthquake-proof structures. Among the several methods, the most common is installing beams that transfer the sway, dissipation units, and incorporation of flexible material.

2. Avoid Major Alteration

Another major cause of building collapse are the major alternations that are made to the basic exterior and interior arrangement of the structure. For example, removal of one of the beams that provide support to the building could make it susceptible to damage.

Additional and Illegal constructions should be monitored and banned. These add-ons put extra pressure on the weight holding capacity of the building giving rise to cracks on the walls. Also, in the cases of dilapidated establishments, the focus should be on its repair rather on modifications which reduce the longevity.

3. Awareness of the construction area

Look for architectural designs that are common in your area of construction. For example, regions that receive heavy rainfall every year have houses with tiled roofs and effective drainage mechanism to avoid flooding and consequent weakening of the foundation. Similarly, high-rise buildings in zones susceptible to typhoons need to be flexible yet durable enough to withstand high wind velocity, whereas smaller homes in the same region need to have deep set windows.

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Things to know before Building a New Home

Building your new home is an exciting and at times overwhelming experience, but for your builder it is very routine, which is why you need to be an active participant in all aspects of the home building process to ensure you end up with "YOUR" dream home.

Building your new home cannot be a passive exercise, because there are so many decisions that "must be" made by you. If you are unable or unwilling to make these decisions, you will force your builder to make them and run the risk that your new home won't turn out the way you envisioned it or cost what you thought. Here are 5 things you must know and take into consideration when building your new home:

1. Think about Every Family Member

For formulating a Project Brief, call every family member together. You should include everyone having interest in the construction – wives, husbands and even the children. Prepare your wish list.

2.  Experiment with Different Ideas

For preparing the wish list, you must have some ideas. You should visit a few finished houses or consult architecture books, catalogues, and professional magazines and search the internet to acquire ideas.

3. Take a decision for the Type of House you want

To prepare the wish list, it is important to know the kind of house to be built as every type has its special requirements. It could be a house built for self-use should have comfort, privacy and luxury, with proper finishing and cost-effective materials for rented portion, it could be a house built for renting must have finishing and cost-effective materials and should be suitable for revenue generation.

Not sure about the house type? Design the house in a manner that it can be expanded in future.

4.  Work with reputed builder

Many builders are out there, but not all are created equal. Do a little research to find out which builders have the best reputation. Whether you search for information online or get recommendations from your family and friends, find out whether a builder is respected for doing quality work as well as being punctual.

5. Have a Budget Plan

Before you start building your new home, run some numbers to determine whether you can afford to build the home you want. Most house plans offer a cost to build tool (usually for a nominal fee) to give you an accurate estimate of construction costs based on where you're building. The numbers include the costs of construction, tax benefits, funds for the down payment and slush account, and other related calculations.

Once you've determined you can afford to build the house you want — purchase your house plan and head to the bank to arrange for financing. Keep in mind that home construction lending is a little different than regular mortgage financing. First, you'll need a home construction line of credit that will be used to pay subcontractors and suppliers who perform work and provide supplies. Once your house is constructed, you will need a residential mortgage to pay off the construction line.

Be sure you put the money for the completion of your punch list in escrow. This will allow you to move into your new home while still requiring the builder to complete the items on the punch list. The punch list marks an exciting time in the process of building your new home, because your home is almost done! Remember not to get so excited that that you breeze through your punch list, because you don't want regret that you didn't take the time to fix these problems.

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To prepare the wish list, it is important to know the kind of house to be built as every type has its special requirements. It could be a house built for self-use should have comfort, privacy and luxury, with proper finishing and cost-effective materials for rented portion, it could be a house built for renting must have finishing and cost-effective materials and should be suitable for revenue generation.

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Building material is any material used for construction purpose such as materials for house building. Wood, cement, aggregates, metals, bricks, concrete, clay are the most common type of building material used in construction. The choice of these are based on their cost effectiveness for building projects.

With epoxy coating, we can create structures like no other material when it comes to construction. No other material can match the potency and durability that coating provides. Epoxy Coating is becoming the most preferred choice for construction due to the various benefits it offers. The buildings that are made from steel require various structural frames. Also, constructing with steel requires less time which makes it the most sought-after way of constructing structures.

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Types of Rebars Commonly used in Buildings

Building material is any material used for construction purpose such as materials for house building. Wood, cement, aggregates, metals, bricks, concrete, clay are the most common type of building material used in construction. The choice of these are based on their cost effectiveness for building projects.

With epoxy coating, we can create structures like no other material when it comes to construction. No other material can match the potency and durability that coating provides. Epoxy Coating is becoming the most preferred choice for construction due to the various benefits it offers. The buildings that are made from steel require various structural frames. Also, constructing with steel requires less time which makes it the most sought-after way of constructing structures.

Epoxy Coating constructions have high resistance due to their strength, and they do not cost as much as other materials do, such as concrete for construction purposes. Also, there are various benefits of using steel over other construction materials. These building constructions are environment-friendly, and can withstand natural calamities like earthquakes.

1. Carbon Steel Rebars

This is the most common type of rebar and is sometimes referred to as a "black bar." It's extremely versatile but it corrodes more easily than other types, making it inappropriate in areas that are subject to high humidity or in structures that are frequently exposed to water. Many consider carbon steel rebars to be the best option in all other types of construction, however.

2. Welded Wire Fabric

Welded wire fabric (WWF) is made from a series of steel wires arranged at right angles and electrically welded at all steel wire crossings. It can be used in slab-on-ground slabs where the ground has been well compacted. A heavier fabrication of welded wire fabric can be used in walls and structural floor slabs. This is commonly used in road pavement, box culverts, drainage structures, and in small concrete canals.

3. Sheet-Metal Reinforcing Bars

Sheet-metal reinforcement is commonly used in floor slabs, stairs, and roof construction. Sheet-metal reinforcing is composed of annealed sheet steel pieces bent into corrugations of about one-sixteenth of an inch deep with holes punched at regular spacing.

4. Epoxy-Coated Rebars

Epoxy-coated rebars are expensive and used in areas that will be in contact with salt water or where a corrosion problem is imminent. The only problem is that the coating can be very delicate, so bars should be ordered from a reputable supplier.

5. Stainless Steel Rebars

Stainless steel can be used as an alternative reinforcing steel bar with carbon steel reinforcement. Using stainless steel reinforcing bars will not create galvanic corrosion, and it can be a cost-effective solution in areas subject to corrosion problems or where repair is difficult and expensive. These rebars will cost at least eight times more than epoxy-coated rebars, however.

6. Expanded Metal or Wire Mesh Rebars

Expanded metal or wire mesh reinforcement is another good product for concrete. Expanded metal is made by shearing a sheet of steel into parallel lines that are then expanded to form a diamond shape or a square shape between each cut. Expanded metal is commonly used as reinforcement in areas where a considerable thickness of plaster is required, or to reinforce light concrete construction.  

Using Epoxy Coating in the building constructions are gaining popularity across the globe. Almost, all the fields have benefitted with the various advantages of coating. With the growing use in construction, it will soon take over the entire construction field. These building constructions are gaining popularity across the globe. Almost, all the fields have benefitted with the various advantages of epoxy.

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Zinc coated TMT bars

Galvanization is used for the deposition of zinc on rebars. Zinc is deposited on a metal body through the process of ion transfer. First of all, coating serves like a physical barrier between rebars and the corrosion source. Even in case there is breakage of the layer, the atoms of zinc degenerate around the area to keep the bar protected even more. Zinc coated bars are also advantageous for the fact that there is no loss of flexibility during the process. The bars can be roughly handled or bent easily. Zinc coated TMT bars from top TMT Bar brands in Siliguri are ideal for constructing small structures.

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Different Types of TMT Bars offered by Different Brands

TMT bars are extensively used in different kinds of civil construction projects. Therefore, they form the cornerstone of modern city life. They are used for making building, beams, slabs, columns and also other kind of structures that bear the live load of people as well as their belongings. Being the core strength of all kinds of structures, the TMT bars are needed to be capable of withstanding large loads. They should also be able to offer protection to a structure against earthquake and windstorms. Poor quality materials like cheap steel bars generally contain very high levels of different unknown elements that can be quite harmful for construction. In other words, these steel bars lack the requisite physical and chemical properties that would make them appropriate building materials.

These bars can be found in various forms, and you can find one for your needs. Know about the 4 common types of bars that are offered in Coastal Regions specially Mumbai, Chennai, Singapore and more.

1. Fusion bonded epoxy coating (FBEC) rebars

In these types, a hot bar is coated with an epoxy powder with the help of electrostatic charges. Then, the powder melts and is cooled to offer a protective coating that is even and adheres well to the bar. With this layer, the bars can get corrosion resistance. This can offer extremely effective protection from chloride ions. In areas with moderate weather conditions, the surfaces are kept protected even in severe rain. In wet areas, other than in saltwater regions, FBEC rebars can be used with CRS having Corrosion inhibitors.

2. Zinc coated TMT bars

Galvanization is used for the deposition of zinc on rebars. Zinc is deposited on a metal body through the process of ion transfer. First of all, coating serves like a physical barrier between rebars and the corrosion source. Even in case there is breakage of the layer, the atoms of zinc degenerate around the area to keep the bar protected even more. Zinc coated bars are also advantageous for the fact that there is no loss of flexibility during the process. The bars can be roughly handled or bent easily. Zinc coated TMT bars from top TMT Bar brands in Siliguri are ideal for constructing small structures.

3. Corrosion Resistance Steel (CRS) rebars

These rebars are the most powerful, and can offer protection to superstructures from acute weather conditions. There is much higher corrosion resistance in a Cu-Cr TMT rebar, as compared to a standard TMT bar. There is blending of various minerals, such as Phosphorus, Copper and Chromium, during the construction of the bars. Every mineral can be effective in corrosion resistance.

Copper allows prevention of rust, and checks its growth further. Chromium can allow better rust resistance as well. Phosphorus can also inhibit reactions that can lead to the development of rust. CRS bars are recommended in rough regions where construction surfaces can come in contact with harsh solid substances, strong liquid chemicals or corrosive fumes.

4. TMT Re-bars with Admixture that inhibits corrosion

Constructors can use it in the substructures, once the soil is normal and devoid of excessive amount of sulphates and chloride. These bars offered by the best TMT bars in North Bengal can be used in superstructures made of concrete, in a soft ambience other than those located in coastal regions with constant and heavy snow and rains. There is also an addition of Bipolar Corrosion Inhibiting Admixture into the concrete.

It does not serve like a barrier, but can retard the process of corrosion to the maximum possible extent. It should not be directly in contact with the bar steel. It can offer corrosion resistance at a micro level.

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Constructors can use it in the substructures, once the soil is normal and devoid of excessive amount of sulphates and chloride. These bars offered by the best TMT bars in North Bengal can be used in superstructures made of concrete, in a soft ambience other than those located in coastal regions with constant and heavy snow and rains. There is also an addition of Bipolar Corrosion Inhibiting Admixture into the concrete.

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You must choose right tmt bar for your home

The steel manufacturing business is a very competitive market, and the costs of TMT rods play a huge role in the selection process. The Ultimate Selling Points (USP) of the TMT rods also play a pivotal role in the sales. Customers often purchase rods by comparing the prices and try to acquire rods according to their value for money. Customers are advised to differentiate and compare the USPs of various brands before choosing the right TMT bars according to their requirements.

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