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A New Time Saving ComFlor Application at Glasgow Development

13 May 2013 No Comment

ComFlor® 60 lightweight composite flooring by Tata Steel is currently being installed as an integral part of a new-to-the-UK structural concrete walling system on a £4million apartment and retail development at 341 Great Western Road in Glasgow – a design and build project by Collen Redpath.

afs1Originating from Australia and filling a gap in the market for a robust alternative to timber frame and lightweight metal construction, AFS Logicwall from Collen Frame is a permanent formwork solution for external and internal walls.

The system consists of lightweight sandwich panels, created by bonding fibre cement sheets to galvanised steel studs. Panels are positioned on site using a lightweight crane, rapidly installed by hand, then core-filled with concrete to achieve loadbearing walls that are fire and sound rated. The fibre cement sheeting remains in place as sacrificial formwork, providing a substrate for applied finishes. In the case of the Great Western Road project, it will accommodate brick slip and an insulated rainscreen cladding system.

ComFlor® 60 sheets with closed (crimped) ends are being installed by Sidlow Brothers Construction Ltd over the system as the apartment floor structure, accommodating a 200 mm deep concrete slab.
The combination of AFS Logicwall and ComFlor® is providing some significant benefits: –

  • afsa1An economic solution due to labour and materials cost savings.
  • Facilitates early fit-out.
  • Simple and efficient design to EN 1994-1-1, using ComFlor® Software from Tata Steel.
  • The shallow 60mm deep deck profile gives optimum span-to-depth ratio and significant concrete volume/weight savings.
  • Monolithic concrete details at slab-to-wall junctions easily meet the Scottish Building Regulations’ Section 5 acoustic standard for separating floors between apartments.
  • ComFlor® closed ends at AFS wall bearings maintain the integrity of the walls by eliminating trough profile voids.
  • H10 bars are provided in the troughs to achieve one hour fire resistance, in accordance with the Comdek fire engineering design method.
  • A safe and debris free site with no wastage or trip hazards, since all decking is cut to size off site. Tight fitting decking seams are grout tight so there is no concrete spillage.
  • A small self-erector crane is used to lift the neatly strapped decking bundles onto the tops of the walls, eliminating the need for more expensive tower craneage.
  • ComFlor® 60 provides a safe working platform for all site personnel during rebar fixing and concreting operations.
  • Speedy placement and fixing of deck, propping and rebar. Concrete pours quickly and efficiently using a pump.
  • ComFlor® 60 has actually provided an unexpected advantage during cold weather. With the metal deck sitting on the AFS walls, Collen were able to temporarily close up the openings for the windows and doors with cheap insulation boards and introduce some basic heaters into the rooms. The result was a controlled environment which enabled pouring the walls and floors in circumstances where concrete work on site would probably have to stop.

When complete, 341 Great Western Road will provide 45 apartments, a retail shell, plus car parking. The project has secured permission for an additional floor and the total project is now due to open early Autumn 2013.

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