A Greener Rebar
The Pantheon's huge concrete foundation also contains basalt. Basanite also produces a line of basalt fibers used as a concrete additive. Pricing: A bundle of 50 ft. (5 10-ft. bars) of 5/8 (6 mm) basalt rebar costs $49.95 at Concrete Exchange. While the reinforcing mesh (like 6.6.10.10. WW mesh) is sold by the square yard for $11.55.