Steel is widely used in today’s construction projects due to its strength, durability, and flexibility. It is used in creating most of the tools, machinery, and structures that characterize the modern world, and thus, it is referred to as the backbone of modern industry. The latter, steel, has become the backbone of construction for homes, apartments, offices, factories, commercial buildings, and even skyscrapers.
Some years back, most construction firms preferred to use only one kind of steel for various construction purposes. However, as we see advancements in technology, we find ourselves having various types of steel, some of which are produced depending on the intended use of the particular property possessed. In this context, we will learn why steel is essential in construction, the properties it has, and the types of steel that you will find in construction projects today.
Why Steel is Essential in Construction
Steel is one of the most widely used construction products in the world; it is renowned for its strength, fire resistance, and durability. Concrete possesses the unique characteristic of withstanding certain forces and is commonly used in the construction of bridges, tall buildings, and offices. It enables builders to design structures that will withstand extreme weather conditions or other difficult environments for decades at a go.
However, steel has a positive aspect in terms of ecological performance. Steel is recyclable: It does not clutter the environment because, after usage, it can be recycled and can be used over and over again, making it more environment-friendly to builders. Besides, steel helps prevent fire, earthquakes, and corrosion, making it critical for the construction of safe structures. It also has functional characteristics that assist in the stability and security of people and property. Now, it is important to understand what steel is and what main types of steel are used in construction works.
Understanding Steel
Steel is a material made from iron and carbon, and its compounds with other elements are also added to the material to enhance its properties. Many individuals often use both the terms – steel and iron – interchangeably while, in fact, steel is an alloy – a blend of iron, carbon, and other elements. This makes steel strong, stiff, and cheap, which is why it is used in construction and other industries.
When used in conjunction with concrete, it improves the performance of a building, especially in high-rise buildings. Cement and steel frame structures are safe as they offer the building commendable support to handle overwhelming constructive loads. Steel is also used in affordable housing projects due to the cost, strength, and flexibility it affords.
According to structural construction, six types of steel are usually used. All have their own parameters that qualify them for the specific needs of a building construction.
Types of Steel Commonly Used in Construction
Rebar Steel
A rebar is short for reinforcing bar; it is the type of steel bar used with concrete to strengthen the structure. It is one of the most commonly used types of steel in construction because of its high-tension handling ability. Usually, there is some kind of pattern on the rebar, such as ridges or ribs. These patterns offer a better keying-in with the concrete to avoid slippage on the steel and offer much greater strength for the concrete-reinforced structure. It is used in construction to come up with good bases and support columns in which a building can withstand tension and compression.
Mild Steel
This is because mild steel offers more flexibility when being used in construction sites since it can be easily cut, bent, or shaped. It often forms round and shining bars, and they can be purchased in diameters of 6mm-50mm. Mild steel is also relatively cheap and easy to work with, but it cannot be used as reinforcement concrete since it doesn’t have a good key bond. Its smooth face allows less substantive support, thus not being utilized in the construction of large buildings or structures such as multi-story kind. Mild steel is commonly used for fences, gates, and decorative structures where extreme strength is less critical.
Thermo Mechanically Treated (TMT) Bars
TMT bars are strong. Builders use them a lot. They make buildings safer. TMT bars go through heat treatment. This makes them extra tough. TMT bars are also flexible. They can bend without breaking. These bars are not costly. They work well in places with earthquakes. TMT bars don’t rust easily. High grades are good for big buildings. Lower grades are fine for small projects.
High Strength Deformed (HSD) Bars
HSD bars are also strong. They add strength to concrete. HSD bars are made by twisting when cold. This makes them strong and flexible. They bend and weld easily. HSD bars are good for big buildings. They have less carbon, so they last longer. They are made differently from TMT bars. TMT bars are heated; HSD bars are twisted.
Carbon Steel
Carbon steel is strong and cheap. It is made from iron and carbon. It can rust if not treated. Carbon steel is used for small projects. It’s also used indoors. Carbon steel is easy to shape. Builders use it when rust is not a worry.
Galvanized Steel
Galvanized steel has a special coating. This coating stops rust. Galvanized steel lasts long outside. It’s good for fences and roofs. Galvanized steel is more costly than carbon steel. But it does not rust easily. It is worth the extra cost for outdoor use.
Stainless Steel
Stainless steel is strong and does not rust. It has iron and chromium. It’s perfect for outdoor use. It’s also used in hospitals and food places. Stainless steel is long-lasting. It is more costly but very strong. Builders use it in bridges and big buildings.
Alloy Steel
Alloy steel is light but strong. It is made from many metals. Alloy steel is good for cars and airplanes. It gives strength without adding too much weight. It’s strong but does not make things heavy.
Conclusion
Steel is used in various types of construction. It is not too expensive but provides the required strength for durable construction. Each type of steel has special uses. Steel helps make safe, strong buildings.