BENEFICIATION
construction techniques, which includes the erection of staging and propping, as well as steel-fixing and concrete placement.
Moreover, in situ construction technologies rely on the timely delivery and coordination of building materials to site, many of which are often located in built-up urban areas where space is already at a premium.
Key differentiators
One of CoreSlab’ s key differentiators is its in-house capabilities that provide a comprehensive specialist precast-concrete solution, and this includes the transport, as well as safe and efficient handling of the heavy elements. The hollow-core slabs are delivered to site on a just-in-time basis and the various elements are lifted directly from the trailers using a mobile crane that is positioned as close as possible to the building.
Transport of the items is undertaken by Corefleet and the crane sourced from Corehire. Corestruc installs the system, while CoreSlab assumes a project management role right from the early design phases and coordinates the various components of the precast concrete value chain.
One element is installed every six minutes by small and efficient teams, comprising up to 10 people, which includes a seasoned foreman, as well as rigger and crane operator.
Quarry SA visited two of the company’ s‘ live’ sites earlier this year to witness the company’ s swift installation processes, as well as quality ethos. These included a large commercial development in the Polokwane central-business district( CBD) for Golden Bay Property Developments.
Led by seasoned Corestruc foreman, Louis Steyl, the company’ s team of installers placed, levelled and grouted about 800m ² of hollow-core slabs in as little as two days to complete the second and final level of the structure. Drilling for the installation of the various services inside the structure
Hollow-core slabs are installed more rapidly than a rib-and-block system with the result that many construction projects are accelerated.
26 _ QUARRY SA | MAY / JUNE 2018