Concrete has a very high compressive strength, but severely lacks tensile strength. rebar has a very similar expansion/contraction rate to concrete and has the opposite strengths as concrete: very strong tensile strength, but lower compressive strength. When embedded in concrete the strengths of each of these materials shine while greatly reducing their weaknesses.
Looking for other concrete forming solutions? View the rest of our options here.
*Always check with your municipal requirements prior to purchase & Installation.