Examples of neurodegenerative diseases include Parkinsonâs, Alzheimerâs, and Huntingtonâs disease. Neurodegenerative diseases are incurable and debilitating conditions that result in progressive degeneration and / or death of nerve cells.
A concrete pier is a foundation element suitable for many types of structures but most commonly used for timber frame post and beam buildings. A concrete pier typically consists of a round or square concrete pillar supported at the bottom by a footer piece which serves to spread the load carried by the pier. The pier is placed or cast with the footer below the frost line and its top end above the ground surface.
Another method is to pour the footings first and the pier second. Though plain concrete foundations (no rebar) are allowed for deck construction, I recommended using rebar to connect the footing to the pier at the cold seam. By constructing in two pours, placement and compaction of the backfill over the footing is much easier. Not every deck design needs the same type of foundation.