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