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.
Cost of Driveway Sealing. Professional driveway resealing costs anywhere from about $0.10 to $0.25 per square foot. That works out to $100 to $250 for a 1,000-square-foot driveway.The rate depends on the condition of your driveway and your geographic location.Despite the cost, resealing is far less expensive than resurfacing or repaving.Resurfacing, which involves putting a new driveway over the old one, costs about $1 to $2 per square foot. Repaving, which requires removing the old asphalt or concrete and starting again, often costs $2 to $4 per square foot.hat works out to $100 to $250 for a 1,000-square-foot driveway. The rate depends on the condition of your driveway and your geographic location. Despite the cost, resealing is far less expensive than resurfacing or repaving.