For nearly a century, concrete rebar for sale in North America has been a primary leader in steel fabrication and is essential in the development of structures designed using reinforced concrete. Rebar for sale across the country is so prevalent because of its ability to easily increase the strength of concrete by a level of magnitude. Concrete is a material that is very strong in compression, but virtually without strength in tension. It must properly be poured to ensure a long-lasting life span. To compensate for this imbalance in concrete's behavior, rebar is cast into it to carry the tensile loads.
While any material with sufficient tensile strength could conceivably be used to reinforce concrete, steel and concrete have similar coefficients of thermal expansion: a concrete structural member reinforced with steel will experience minimal stress as a result of differential expansions of the two interconnected materials caused by temperature changes. That, along with the fact that the materials in both steel and concrete are more than abundant, demonstrates the obvious choice for concrete rebar.
For sale in North America, reinforcement steel is typically delivered in coils that bear tensile ratings, tipping off the engineers in your crew about the weight, density and shear forces each tie can withstand. Common concrete rebar for sale is made of unfinished steel, making it susceptible to rusting. As rust takes up greater volume than the iron or steel from which it was formed, it causes severe internal pressure on the surrounding concrete, leading to cracking, spalling, and ultimately, structural failure. This is a particular problem where the concrete is exposed to salt water, as in bridges built in areas where salt is applied to roadways in winter, or in marine applications. Epoxy-coated concrete rebar or stainless steel concrete rebar for sale in North America may be employed in these situations at greater initial expense, but significantly lower expense over the service life of the project. Fibre-reinforced polymer rebar is now also being used in high-corrosion environments.
Choose properly from the wide variety of concrete rebar for sale, and you could have a structure that endures for literally centuries without needing additional reinforcement.