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| Qualislab cast their slabs in-situ - i.e. the concrete is cast into its form on site. This is done by erecting formwork that covers the area of the building that requires a slab. Once the formwork is in place, the deck is then leveled. The next step is to fix the steel according to engineers' specifications. Once this has been done, the appointed electricians and plumbers may install their boxes and pipes. The final step is then to cast the wet concrete - usually by means of a concrete pump. Once the concrete has been cast, the formwork remains for at least 7 days after which 70%-80% of the formwork is stripped.The remaining props are then removed after a further 14 days. |
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| Concrete beams are often required as part of a concrete slab to provide the slab with additional support where spans are too wide, when there is a lack of underlying support, or even just as an aesthetic feature. Qualislab will flawlessly build your reinforced concrete Arched Beam, Ring Beam, Up-stand Beam, Down-stand Beam or Internal Beam according the architectural and/or structural engineer's design |
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Stairs are most often cast along with a slab. Building a staircase requires good carpentry skills and good knowledge of construction. Qualislab are specialists in the building of concrete stairs and have constructed many impressive and uniquely designed staircases.
As with slabs, stairs are cast in-situ. The formwork of the staircase consists mostly of woodwork which requires skilled carpentry. Once the formwork is in place, steel is fixed according to engineers' specifications. Should the stairs have light fittings, the appointed electrician is required to install boxes and pipes prior to the casting of concrete. |
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A raft foundation is a reinforced slab in the correct position on the ground which allows the foundation to move (or ‘float’ – hence the alternate name ‘floating foundation’) along with subtle ground movement avoiding damage (e.g. cracks in walls).
Raft foundations have always specifically been used in areas where the ground is inherently volatile and prone to ground movement, such as dolomite and clay. The alternate would be to dig deep foundations to avoid the effects of ground movement. However, raft foundations are often being used as a replacement for deep strip foundations as they often prove more cost effective with more advantages. |
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| Steel fixing refers to the binding of reinforcing steel (or "rebar") together with binding wire. Qualislabs have expert steel fixers that are capable of fixing steel according to engineer specifications |
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