Preparation
The formwork should be constructed to be leak proof as Supercast EPT is a fl uid material.
This can be achieved by using foam rubber strip or mastic sealant beneath the constructed formwork and between joints.
A heavy duty release agent should be applied to all contact areas of formwork
Pile surface
This must be free from oil, grease, or any loosely adherent material. If the concrete surface is defective or has laitance, it must be cut back to a sound base.
Rebar should be clean and rust free. If reprofi ling is required Renderoc RG /SPL may be used as appropriate.
All surfaces must be substantially dry. All free standing water must be removed.
Mixing
The entire contents of the hardener should be poured into the base container and mixed until homogeneous.
Place the mixed base and hardener into a suitable mixer making sure that the entire volume is poured in.
Add the aggregate and mix for 2-3 minutes or until uniform colour is achieved.
Once mixed, the material must be used within the specifi ed usable life (see under Properties).
After this time, unused material will have stiffened and should be discarded.
Placing
Place the material within the usable life of the product. Continuous material fl ow is essential.
Suffi cient product must be available prior to starting and the time taken to pour a batch must be regulated to the time taken to prepare the next one.
Subsequent Application
Prior to the application of any membrane to the piletop, the applied Supercast EPT should be lightly sanded to remove all traces of formwork release agent and provide an adhesion key.
Membranes should be subjected to an adhesion trial to ensure complete compatibility.
Cleaning
All tools and equipment should be cleaned with Fosroc solvent 102* immediately after use.
Additional Information Fosroc manufactures a wide range of complementary products which include :
- waterproofi ng membranes & waterstops
- joint sealants & fi ller boards
- cementitious & epoxy grouts
- specialised fl ooring materials
Fosroc additionally offers a comprehensive package of products specifi cally designed for the repair and refurbishment of damaged concrete.
Fosroc’s ‘Systematic Approach’ to concrete repair features the following :
- hand-placed repair mortars
- spray grade repair mortars
- fl uid micro-concretes
- chemically resistant epoxy mortars
- anti-carbonation/anti-chloride protective coatings
- chemical and abrasion resistant coatings
