A survey of contractors in Charleston West Virginia shows the cost of Demolition and Removal of concrete ranges from $3.36 - $5.01 per square foot. The cost of materials and labor to pour new concrete ranges from $5.47 - $6.11 per square foot. The total cost for Removal and Replacement would range from $8.83 - $11.11 per square foot.
More information can be found here: https://concrete.promatcher.