Flashcards in Basements Deck (9)
What are the three main types of basement?
Retaining Wall and Raft
Box and Cellular Raft Basements
What is wall and raft basement construction?
- general method of basement construction
- raft slab forms basement floor and distributes load
What is a piled basement?
Superstructure loads are carried to basement level via columns
Loads transferred from caps to piles
What are the elements of a typical basement structure? Also talk through the method of construction.
Piles, retaining wall (secant or sheet), columns, Raft foundation, pile caps
What are the three techniques to waterproof a basement?
Mastic Asphalt Tanking (Internal & External)
What is Mastic Asphalt Tanking?
Can be either internal or external
Continuous waterproof membrane to the base of the slab and walls
What is external Mastic Asphalt Tanking?
Prevents ingress and protects the structure
Generally is sprayed on
What is internal Mastic Asphalt Tanking?
Only adopted if external is not possible
Does not protect structure as external does