Regular concrete is about $130/ton. Concrete products like decorative paving can cost $1500/ton installed. Specialist carbon-free concrete for those would co

Regular concrete is about $130/ton. Concrete products like decorative paving can cost $1500/ton installed. Specialist carbon-free concrete for those would cost $1500 + $200 = $1700. An 11% surcharge doesn't seem an unreasonable for choosing to do something the 'hurt the environment' way - anything less and I suspect many would say 'nah, don't bother'.