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Material Specification - 350N/mm²
Steel Steel strip used in the manufacture of Multideck 146 complies with BS EN 10143:1993 and BS EN 10326:2004 with a guaranteed minimum yield strength of 350N/mm² and a minimum total (total both sides) coating mass of 275 gram/m².
Concrete Volumes & Specification
Load / span tables are based on Grade C25/30 concrete, having a cube strength of 30N/mm². Density of normal weight concrete: 2400kg/m³ at wet stage. Density of lightweight concrete: 1900kg/m³ at wet stage. All concrete used with Multideck in the construction of composite slabs should comply with the recommendations in BS 8110: 1997.
Reinforcement
Reinforcement of the concrete slab to control cracking at all supports is required in accordance with BS EN 5950 Part 4: 1994. Steel reinforcement for crack control or fire performance engineering should be in accordance with British Standards. Hot rolled bars BS EN 4449: 2005. Fabric reinforcement BS 4483: 2005.
Embossments
Raised diagonal embossments in opposite directions on each face of the webs, provide mechanical connection between the steel deck and the hardened concrete.
References
Engineers are advised to consult the SCI / MCRMA publication P300 Composite Slabs and beams using steel decking: Best practice for Design and Construction.
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