MV Element (comprising iso-element, shear reinforcement, rail and tubes)
System Components
The Ancon Isolan system joins external concrete balconies to internal concrete floor slabs. It provides continuity to both the concrete reinforcement and the thermal insulation of the wall.
Standard Ancon Isolan systems are available in five heights to suit different depths of balcony and are supplied complete with stainless steel shear reinforcement. Other reinforcement to be supplied by others.
ISO-Element
The ISO-Element is 60mm thick, CFC-free, rigid white polystyrene insulation in a standard length of 750mm. It is available in five heights (160, 180, 200, 220 and 240mm) to suit different depths of balcony.
Shear Reinforcement
The shear reinforcement is duplex stainless steel grade 1.4462 and is available in three diameters (6, 8 and 10mm) as standard. In addition to the standard systems, this reinforcement can be bent into other required shapes outside the polystyrene insulation element.
The Isolan system should be orientated so the stainless steel shear reinforcing bars are at the bottom of the slab on the side of the load (the balcony side).
Tubes
Polypropylene tubes with a 27mm internal diameter are located at pre-determined positions in the ISO-Element to allow for the passage of tension and compression reinforcing bars.
Rail
A high density polyethylene rail is located on the top edge of the ISO-Element to protect the insulation.
Tension and Compression Reinforcement (supplied by others)
Reinforcement used for tension and compression bars to be grade 500B to BS4449: 2005. The minimum anchor length must be achieved either side of the Isolan system. Care should be taken during installation to ensure that any misalignment of the compression bars does not exceed 25mm in 1000mm (1 in 40).
Corrosion Resistance
The shear reinforcement is stainless steel and the carbon steel tension and compression reinforcement passing through the insulation unit is encased in polypropylene tubes which fill with concrete fines at the time of casting. This prevents water and oxygen from reaching the bars, thus providing corrosion protection.
Fire Protection
Additional fire protection can be provided to the system by adding Duripanel fire resistant strips to the base or to the top and base of the ISO-Element. The strips are available in 18, 28 or 36mm thickness providing 30, 60 or 90 minute fire resistance respectively. The polyethylene rail is omitted from the ISO element if these strips are employed to the top.
