How to replace brake pads. Experts say itâs hard to determine how often brake pads should be replaced, because they can wear out faster or slower based on how you drive the car, the weight of the vehicle, road conditions and driving frequency, Gregory says. He recommends having them checked at every oil change.
buttress (plural buttresses) ( 1 architecture) A brick or stone structure built against another structure to support it. 2  Anything that serves to support something; a prop. ( 3 botany) A buttress-root. ( 4 climbing) A feature jutting prominently out from a mountain or rock; a crag, a bluff.
a dam in which the water pressure of the headrace, which is absorbed by the pressure floor (in the form of plates or vaults), is transmitted to buttresses and the foundation.Buttress dams are constructed primarily from concrete and reinforced concrete.oth fixed and spillway buttress dams are built. In comparison with massive gravity dams, buttress dams (especially the multiple-arch type) produce savings of 40 percent and more in concrete and costs, depending on the design and local conditions. The height of buttress dams sometimes exceeds 100 m.