An increase in either of these physiological components (cardiac output or TPR) causes a rise in the mean arterial pressure. Vasodilation works to decrease TPR and blood pressure through relaxation of smooth muscle cells in the tunica media layer of large arteries and smaller arterioles.
Contractors' prices for 2-4 hours with heavy equipment removing a small area of concrete (such as a 8x10-foot patio 4-8 inches thick) start around $250-$550 and go up. Removing an average driveway is $1,000-$2,500 and up, particularly if it's reinforced concrete. Prices vary considerably by region.
Other cost factors to consider include permits and inspections. The national average cost to demolish a concrete driveway is $1,500, but the price can top $3,000 in some cases. There are various factors that a demolition contractor must consider when determining a quote for the project.Check out other useful resources related to driveway demolition:1  Concrete demolition information. It will cost you more in demolition costs in the long run, so do it right the first time: demo the driveway and pour fresh concrete over a properly graded and prepared site. 2  If you plan to pour a new driveway, recycle the concrete debris for use as the aggregate base for the new driveway.