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.
1 See How Much Does Concrete Removal Cost for more information and cost breakdowns. 2  All driveway heating systems add to winter utility bills. 3  The WarmZone company in Utah estimates the electricity would cost about $1.50 to melt 300 square feet of snow on a driveway during a typical storm. Demolishing a concrete driveway costs $50-$500 for DIY, $500-$900 for day labor assistance, and $1,000-$2,500 for work by a licensed contractor. 2  See How Much Does Concrete Removal Cost for more information and cost breakdowns. 3  All driveway heating systems add to winter utility bills.