According to the study “Asia Deformed Steel Bar Industry Situation and
Prospects Research report”, steel rebar
or deformed steel bar or a mesh of steel wires are used in concrete
constructions and concrete masonry to provide support to concrete structures.
Steel rebars used in construction offers high tensile strength and thermal
co-efficient value similar to concrete thermal co-efficient value. It is also
the cheapest option that is used for concrete reinforcement structures and
buildings. It was observed that there is a decrease in the usage of iron due to
increasing mining expenditure and the depletion of iron ores reserves. Therefore,
the already available steel scrap is recycled and used in the production of
steel. The decreasing average life of automobiles and demolition of older
constructions is generating huge quantities of steel scrap.
Steel rod used for reinforcing
concrete which possesses surface irregularities, as transverse ridges, to
improve the bond is termed as deformed steel bar. They
are also know as reinforcing bars or rebar which are used to bind two materials strongly,
limits cracks in concrete, avoid slippage and have higher tensile strength than
mild steel rebar. Steel Rebar or deformed steel bar is widely used in the
construction industry for concrete reinforcement. It acts as a tensioning
device and assists to hold the concrete in a compressed state to carry the tensile
load. Steel rebar possess several drawbacks during steel manufacturing that involves
generation of various types of wastes that are discharged in water causing
water pollution, releases carbon dioxide causing greenhouse effect, responsible
for emission of hazardous gases causing air pollution, and corrosion tendency
of steel leads to deterioration of constructions. Evolution in Asian construction sector has led
to a huge demand for steel rebar even if the drawbacks are posing threat.
Various new grades that are introduced in
deformed steel bars are Fe-500, Fe-550, and Fe-500D. These are deformed steel bars
are corrosion resistant, epoxy coated, and earthquake resistant compared to the
conventional rebars. The leading players in deformed steel bars market in Asia
are Power Steel Products, Arab Building Materials, Hyundai Steel, Razaque
Steels, SMC and Agha Steel Industries. Geographically, deformed steel bars
market in Asia is spread across China, Japan, India, Korea, Saudi Arabia and
other regions. Asia’s continuing infrastructure development in housing,
commercial, and industrial sectors is bolstering growth in the steel rebars
market. Deformed steel bars in Asia are used in infrastructure, manufacturing,
and oil & gas industry. It was observed that the infrastructure sector will
dominate the deformed steel bar market in Asia due to rapid development and
industrialization in China and India.
Few substitutes for steel rebar are basalt
rebar, fiber reinforced polymer which are eco- friendly and possess high tensile
strength. These substitutes may anticipate some share from the steel rebar
market due to the environmental and corrosive effects of steel. Basalt rebar is
the best product apart from steel rebar and also has thermal co-efficient
almost equal to that of concrete. Deformed steel bar industry will experiencing
continuous innovations and advancements due to the rapid technological
advancements and enormous applications of steel rebar. With increase in
consumption and demand for alternative products will drive Asia’s deformed steel bar industry over the next few years.
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