Steel Rebar Market: Snapshot
SteelRebar, also known as reinforcing bar is widely used in the constructionindustry, majorly in concrete reinforcement. It serves as a tensioning deviceand assists to hold the concrete in a compressed state. Concrete can carry aheavy load for compression but is very weak in tension. To allow concrete tocarry tensile load, steel rebar is used. Steel rebar is commonly used forconcrete construction its thermal co-efficient value is close to the thermalco-efficient value of concrete.
Deformedsteel bars, a type of steel rebar, have ribs, lugs, or deformity on the barsurface. These steel bars bind two materials strongly, limit cracks inconcrete, avoid slippage and have higher tensile strength than mild steelrebar. Mild steel rebar is used to support the tensile stress of slab beams.
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Steelrebar is a cost-effective product that could be used for concrete masonry andconcrete reinforcement. Conversely, aluminum is an expensive with less tensilestrength alternative for the same applications. However, steel rebar comes withseveral drawbacks. In the production of steel, various types of wastes aredischarged in water which can cause water pollution. Its manufacturing alsoreleases CO2 causing greenhouse effect. It is also responsible for emission ofhazardous gases such as nitrogen oxide and sulfur oxide in the air, causing airpollution. The corrosion tendency of steel leads to deterioration ofconstructions where rebar is used. While these drawbacks will continue posingthreat, increasing construction activities worldwide, especially in emergingnations, will keep the demand for steel rebar high in the coming years.
Steelrebar, commonly known as steel reinforcement or reinforced bar, is a steel baror a mesh of steel wires used in concrete constructions and concrete masonry asa tension device in order to provide support to concrete structures. Concreteexhibits high strength when compressed, but is equally weak under tension.Steel rebar acts as the tensioning device, thus providing strength to concrete structures.It makes these structures stable under strength and tension. Steel is used inconcrete reinforcement as it offers high tensile strength and has a thermalco-efficient value, which is close to the thermal co-efficient value ofconcrete. Furthermore, it is one of the cheaper options that can be used forconcrete reinforcement and concrete masonry. Aluminum is a costlier substitutefor steel with less tensile strength. However, steel rebar has severaldisadvantages. These include the corrosion tendency of ferrous materials. Thisleads to intrinsic deterioration of structures where steel is used. Productionof steel adversely affects the environment. For instance, it leads to emissionof hazardous gases such as carbon oxides, sulfur oxide, and nitrogen oxide inair. It also is responsible for emission of CO2, thus leading to the greenhouseeffect. Production of steel results in discharge of wastes into water, therebyleading to water contamination. The steelrebar market has been expanding due to the rapid infrastructuredevelopment, especially in housing, commercial, and industrial infrastructure,in developing nations. The market for steel rebar is expected to expandsignificantly in the next few years owing to the rapid industrialization indeveloping nations. There exists a need for substitutes for steel rebarconsidering its various disadvantages. Some substitutes such as basalt rebarand fiber reinforced polymer are eco- friendly and possess high tensilestrength. These substitutes are anticipated to seize some share of the steelrebar market due to the environmental and corrosive effects of steel. Basaltrebar possesses numerous advantages over steel rebar and also has thermalco-efficient almost equal to that of concrete. The industry is experiencingcontinuous innovations and advancements due to the rapid technologicaladvancements and high end applications of steel rebar. The newer grades thatare being introduced are Fe-500, Fe-550, and Fe-500D. Similarly, in terms ofapplication, a newer range of steel rebar that is corrosion resistant, epoxycoated, and earthquake resistant is being used increasingly in applicationsthan the conventional rebar.
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Based onapplication at the site of work, the steel rebar market can be segmented intomild steel bars and deformed steel bars. Mild steel bars are used to supportthe tensile stress of slab beams. Deformed steel bars come with deformity orlugs or ribs on the bar surface. It has higher tensile strength as compared tothe mild steel rebar and avoids slippage, limits cracks in concrete, and alsobinds two materials strongly.
Based onits finish, the steel rebar market can be divided into black rebar, epoxycoated rebar, and fabricated rebar. The use of these finishes depends on theenvironmental conditions that the bars are subjected to. Black rebar is aconventional uncoated rebar used at sites with minimum exposure to moisture,with minimum chances of catching rust or corrosion. Epoxy rebar is usuallyfound in marine applications where there is a high chance of corrosion due towater. Black rebar is the preferred rebar is widely used owing to its costeffectiveness.
In termsof end-use industry, the steel rebar market can be segregated into constructionand infrastructure, manufacturing, and oil & gas industry. The constructionand infrastructure sector dominates the steel rebar market. The segment isexpected to expand during the forecast period due to the rapid development andindustrialization in developing countries such as China and India. This is anticipatedto result in real estate and infrastructural developments.
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In termsof geography, the global steel rebar market can be segmented into Asia Pacific,Europe, Middle East & Africa, North America, and Latin America. The marketfor steel rebar is dominated by North America owing to the large number ofconstruction activities in the region. Asia Pacific is also a key consumer ifsteel rebar, led by the rapid industrial and infrastructural development indeveloping countries such as India and China. This results in the need forsteel rebar for housing, industrial construction, and other infrastructuralconstruction. Consumption of steel rebar has increased significantly in AsiaPacific. Europe and Middle East & Africa are the other major consumersof steel rebar.
Majorplayers operating in the global steel rebar market include Arcelor Mittal,Saudi Iron & Steel Co., Tata Steel, and Zamil Steel Holding.
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