£5.15
This guidance gives details of the stress corrosion cracking (SCC) that can occur in certain materials when subjected to tensile stress and specific corrosive environments. Although rare in our industry, it can lead to unexpected sudden failure of certain metals. Whilst chemical environments and alloys are highly specific, this guidance explains the process by which SCC can occur and advises that specialist advice may be needed where SCC is possible or has occurred in the past. This guidance is available for pdf download only.
2 pages
The TG20 Design Guide provides technical data, commentary, and source material for use by competent and suitably qualified scaffold designers in circumstances which are outside the scope of standard solutions provided in the TG20 Operational Guide and TG20 e-Guide software. NASC members can purchase 10 or more copies of the TG20:21 Design Guide book at the discounted rate of £25 per unit. To do so, please email sales@nasc.org.uk
The TG20 Operational Guide contains detailed practical guidance for most common types of scaffolding, supported by structural research and calculation. Guidance is provided for a range of standard structures which includes independent scaffolding, interior birdcages, chimney stack scaffolds, loading bays, ladder-access towers, free-standing towers, lift shaft towers, putlog scaffolding, exterior birdcages, tube and fitting mobile towers, tube and fitting loading bays without beams, and tied independent scaffolds with three inside boards. NASC members can purchase 10 or more copies of the TG20:21 Operational Guide book at the discounted rate of £25 per unit. To do so, please email sales@nasc.org.uk
This guidance note is concerned with advice for the safe erection, use and dismantling of temporary suspended chutes intended for the conveyance of waste construction materials. The guidance covers chutes constructed of detachable sections made of metal or non-metallic material, attached to scaffolding. 4 pages
Scaffold tube storage racks are a common feature of every scaffolding contractor’s yard and many long-term live sites. Whilst tube racks are usually constructed as basic birdcage-like structures, they generally support many tonnes of equipment, so their design needs special consideration. This guidance note considers the design, use and maintenance of scaffold tube storage racks. 6 pages
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