INNOVATION IN CONCRETE
THE NEXT GENERATION OF THERMALLY EFFICIENT FLOORING
HANDLING & INSTALLATION GUIDE
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Installation details Handling & Storage
Ground Works
If it is necessary to stack Spantherm units the following guidelines must be adhered to in all instances:
• T he efficient use of Spantherm depends on installation onto level bearing surfaces around the floor perimeter and support walls.
• T he ground must be firm and level, and wherever possible stacking of components should be on firm hard-core or over-site concrete. • T imber battens should be provided at end bearing points to the underside of the bottom unit only in each stack. NOTE there is no requirement for timber battens to be provided between intermediate units within each stack. • S imilar length beams should be stacked together up to a maximum of four units per stack. The need to climb onto stacked components to secure chains or other means of lifting must be avoided. • A ny units with details such as holes and/or notches and also narrow width units should be stored on top of the stack. • I n instances where doubt exists concerning any aspect of site stacking, the Company’s Representative must refer back to the manufacturer before allowing units to be stacked.
• D etails of typical construction detailing and best practice regarding the placement of DPC are included with each project drawing. • F or installations without an under-floor void, please see the following recommendation from NHBC: “ The ground/fill on which the floor is laid over is not affected by heave or other upwards movement. Where the ground/fill is supporting a membrane, it should not be affected by shrinkage or settlement that could damage the membrane. The floor is only supported in the way intended to safely transfer the loads through the foundations, and not affected by high spots or raised levels of fill in the general floor areas. T he system includes a membrane to prevent the ingress of moisture from the ground, and where applicable, ground gasses. This membrane should be suitably detailed, particularly where it is placed under load from the flooring system. Advice from the membrane manufacturer may be required.”
Product Installation • D uring installation, Spantherm units should always be placed on level ground when handling.
Safety chains supplied by others
30º MAX
30º MAX
• W hen placing individual Spantherm units within the floor it is essential to refer to the floor plan provided which details individual unit locations. • IMPORTANT Panel locations are not interchangeable. • C are should be taken when placing units over service openings to avoid dislodging or damaging pipe work. • Lifting details are shown in diagram A. Please refer to the health and safety notice. • W here units share an intermediate bearing wall, a minimum bearing of 100mm should be provided in all instances.
Lifting pins are cast into Spantherm units at structural rib locations Diagram A
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Minimum bearing lengths on masonry = 100mm concrete = 80mm steel = 70mm.
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Grouting
Loading
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Ensure that all debris is cleared from joints between units.
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Water to be sprayed on joints prior to grouting.
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Units to be grouted with 3:1 sand cement or C25/30/10mm nominal aggregate ready mixed concrete.
• T he longitudinal joints between all slabs must be grouted a minimum of 72 hours before applying additional loading onto Spantherm units. This is in accordance with the Precast Flooring Federation Code of Practice for the safe installation of precast concrete flooring and associated components.
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Grout must be densely compacted.
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Take measures to protect the grout from inclement weather.
• W hen loading out with materials these should be placed outside the middle third of the span of the unit and placed directly over the grouted joint between adjacent units. • P lease note that the temporary loading condition must not exceed the permanent loading condition for which the floor units have been designed. • A dvice and approval should be sought from the manufacturer prior to the storage of unfixed materials on the floors by following trades.
Health & Safety Contractor installing Spantherm units to ensure all lifting operations carried out comply with LOLER regulations and units are erected in a safe manner by competent and qualified fitting squads and have adequate supervision as per current HSE/Construction Industry guidance. If you require any more information please contact: Creagh Concrete Products Ltd. Health & Safety or Technical Department on 028 796 50500.
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Minimum bearing lengths on masonry = 100mm concrete = 80mm steel = 70mm.
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INNOVATION IN CONCRETE
Contact Information
CREAGH CONCRETE PRODUCTS LTD ENGLAND Thurgarton Lane Hoveringham Nottinghamshire NG14 7JX Tel: 016 3683 1043
SCOTLAND Cliftonhall Road 14 Newbridge Industrial Estate Newbridge Edinburgh Scotland EH28 8PJ Tel: 0131 333 5405
IRELAND 38 Blackpark Road Toomebridge Co. Antrim N. Ireland BT41 3SL Tel: 028 7965 0500 ROI: 048 7965 0500
spantherm@creaghconcrete.com
Creaghconcrete.co.uk/spantherm.html
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