The most important factor in constructing a long-lasting civil or commercial structure is the material used. The quality of the construction material is essential to ensure the durability of the structure. When planning a construction project, the materials must be wisely chosen so that they properly fulfill the desired functions that are expected from them. From cement to TMT rods, here is a checklist of important materials without which any construction project is incomplete:
This is the most basic and one of the most important components for constructing a structure. Basically, bricks are made of clay, mud or ceramic material which are burned in a kiln and then dried to make them hard. Fired bricks are commonly used for constructing homes. These bricks have cavities that help them in drying. These cavities also make them light weight. When constructing homes, these bricks are placed upon each other and reinforced with the mix of cement and sand to make walls, ceiling and other architectural detail of the home.
Cement acts as a binder and is used to bind other construction materials such as bricks or TMT rods together. Cement can be either hydraulic or non-hydraulic. This classification depends largely on the ability of the cement to set with water. Hydraulic cement has adhesive properties and quickly sets with water, even under wet conditions; while non-hydraulic cement won’t set under wet conditions. Hydraulic cement is widely used for constructing home and other structures.
This building material is manufactured by combining aggregate composites and a binder such as cement. The most common type of concrete used for construction is Portland cement concrete which is made using sand, gravel, cement and water. Once these components are mixed properly, the mixture is left to harden and the final product is known as concrete. Concrete has a very low tensile strength and therefore, to strengthen it, construction workers use TMT rod or re-bars. Concrete is highly durable and has better longevity.
4. TMT Rod
TMT rod or TMT bars are widely used construction materials. These are manufactured using processes that include compression, rolling, treating them with heat followed by quenching (using water). The last step hardens its outer layer, giving it superior strength and durability. High quality TMT rods and bars are excellent for ensuring the durability and longevity of your home. Its ribbed exterior helps it to bond with the cement, giving a firm support to the structure. While its super bending ability (due to its soft ferrite-pearlite core) lets the construction workers mould it into various shapes. It is corrosion resistant and is good for earthquake-prone areas.
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About TMT bars:
TMT bars, or thermo-mechanical treated bars follows a process that combines moulding, rolling and/or work hardening with heat-therapy all into a single process. It is one of the latest product in the steel industry which has high-grade properties such as amalgamating ability, bending ability, strength, better ductility and best quality at global level. By embracing thermo mechanically treatment process greater strength of TMT bars is acquired. In this procedure, steel bars go through instant cooling post rolling. While the temperature from outside is cooled suddenly to make the surface layer tough, simultaneously the internal core is hot. Tempering happens when the atmosphere is cooled from outside while the core is still hot. This procedure enhances steel properties providing it the much needed strength of TMT bars.
Why TMT bars:
TMT bars is an amalgamation of hard and strong properties which provides resistance to the steel. It has the right combination of strength and ductility. The carbon content has been decreased consistently resulting in improved properties of steel and and can also be limited to 0.2% to acquire welding expertise without losing any strength. The joint can be amalgamated by ordinary electrodes without any additional precaution.
How is it different from other ordinary steel?
One of the most unique quality of TMT bars is its property of reducing the volume of steel considerably along with the column size. These bars have the ability to reduce space by using less quantity of load bearing columns and structures. It also has a higher strength than normal bars, and it is for these reasons that TMT bars are being preferred over the normal ones. Some more unique qualities of TMT bars are mentioned below:
Given all its exclusive properties, TMT bars needs few precautions while being handled. Firstly, while buying these bars the identification mark should be kept in mind. Also, for huge projects it is advisable to verify that only one type of bar is used and is not mixed with multiple grades.
A house is only as strong as its foundation
And how do you guarantee a strong foundation? The answer is superior quality steel and concrete to make the house stand for years. Mentioned below are a few pointers that should be kept in mind in order to make the foundation of a house strong.
1) Soil Type
Soil type is extremely important when it comes to the foundation of a building. The soil should first be examined to check if it is soft or dry. Dry soil will make the foundation strong and stable and wet soil might affect the foundation in an adverse way. It’s always better to consult an engineer who can advise you in a proper way.
There was a time when homes across India were built with concrete slabs over a skeleton structure made with iron rods. However, the rods would start rusting soon after construction was over, affecting structural stability of the buildings in the long run, and requiring frequent repairs. Besides, the 1993 Latur earthquake, which leveled a village and its surrounding regions and caused more than 30,000 houses to collapse over their unfortunate occupants, made it clear as to how helpless people with such homes were in front of the wrath of nature. A solution was needed, and fast!
Twisted iron rods have been used by engineers for decades to build homes across India. However, they are not suited for use in earthquake prone regions, as the rods break quickly when subjected to vibrations and variable pressures. Not just that, the bars get corroded quickly on exposure to moisture from the surrounding concrete, becoming rusty and brittle with time. the timely development of TMT bars offer an excellent solution to the problem.
A residential property is a major investment, and before you buy any, you need to ensure that you will receive maximum value for your money. There are several factors you need to consider before you decide on buying a house, including the distance of the region from earthquake prone zones, and availability of skilled engineers and labourers. Kolkata is a good choice, considering these factors.
Steel is one of the most widely used metal alloys, and not surprisingly, the uses of steel are also hugely varied. Here are 10 fun facts about this wonder alloy that you may not have known:
1.The world’s largest dental cap, made for Spike, an Asian elephant at the Calgary Zoo in Canada, is made of steel. The cap is 5 inches in diameter, 19 inches long, and weighs 12.7 kg. (Source: books.google.co.in)
For many years, engineers across India used twisted iron rods to build skeletons of homes. While these seemed to create quite a strong structure for homes during the construction, soon afterward they would start corroding in contact with the moisture from the concrete. Naturally, houses had to be repaired every few years, and even then, had a hard time standing up to natural disasters like earthquakes. However, not many deaths occurred due to collapsing buildings, since the earthquakes themselves were low in magnitude.
The 1993 Latur earthquake was quite a rude shock for homeowners across the country, making them concerned about the safety of their homes in the face of nature’s wrath. The 2001 Gujarat earthquake, which measured 7.7 on the Richter scale and leveled close to 40% of homes in Bhuj, made the Government of India concerned enough to publish new guidelines for retrofitting homes located in earthquake prone zones to make them resist vibrations better.
India shows major diversity in land structure with lots of rivers, mountains and valleys scattered around the nation. Naturally, in order to facilitate traffic flow around these obstacles, India has plenty of bridges as well. Here are 7 of the most popular bridges in the country.
Bandra-Worli Sea Link (Maharashtra)
A cable-stayed bridge with steel-concrete viaducts on both sides, the Bandra-Worli Sea Link (or as it is officially named – Rajiv Gandhi Sea Link) connects Bandra in West Mumbai with Worli in South Mumbai. The massive 8-lane bridge is the longest sea bridge in the country, with a total length of 5.6 km.