(One Hundred Questions on Waterproofing) #93Underground waterproofing can be divided into external waterproofing (external construction) and internal waterproofing (internal construction). What are the different types of external waterproofing methods? What are the standard construction specifications?

Answer:

Can be divided into:

1. Pre-construction method: Construction is carried out before the structure is erected, directly applied to the retaining structures.
2. Construction method later: After the structure is completed, it is directly applied to the exterior wall of the structure (but there must be sufficient construction space).

Standard normative construction drawings for the outer waterproof layer pre-construction method:

Standard construction drawings for the outer waterproof layer construction method: