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.
âPortland cementâ is the generic term for the type of cement used in virtually all concrete. In its simplest form, concrete is a mixture of paste and aggregates. The paste (portland cement and water) coats the surface of the aggregates. Through a chemical reaction called âhydration,â the paste hardens and gains strength to form the rock-like mass we know as concrete.So, there is no such thing as a cement sidewalk; the proper term is concrete sidewalk.