Basic Elements of CPF Systems
The basic elements of CPF systems are:
- A filter - to allow the passage of water and air away from the fresh concrete but retain cement and other fine solids.
- A drain - which transfers air and water from the filter to outside the formwork.
- A structural support - this is the formwork which supports the filter and drainage elements and also maintains the required formwork profile and resists the concrete pressure, commonly plywood/structural timber.
Read more about this topic: Controlled Permeability Formwork
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