17 CONSTRUCTION WORLD OCTOBER 2016 This provided WBHO sufficient time to power float the slabs from the time the readymix concrete was delivered to the site,” Ross says. WBHO started working on the premium commercial development at No 5 Silo in February 2015 and completed the building in July this year, providing five floors of 15 000 m 2 of additional office space at the V&A Waterfront. The building’s high quality concrete finishes are complemented by its impressive façade comprising glass, aluminium, tiles and Rhine zinc, while 15 steel bridges connect the two separate seven storey office blocks above an internal cobblestone road. Work on the No 4 Silo project is also nearing its September completion date. Set to be completed in March 2017, the No 3 Silo development comprises three residential tower blocks. The highest at 12 storeys provides the best setting of all residential apartments at the precinct. All these structures were built off the 30 000 m 2 two storey car park, which WBHO completed in April this year. Brooks says that it was built in phases to accommodate the various access dates for the construction of the three buildings. Sheet piling had to be installed all the way around the precinct to retain the surrounding area, before the contractor could start excavating the basement down to 1,8 metres below sea level. The entire project was divided into the three silo developments with their own construction programmes however, there was still a strong element of interface between them. Already home to multiple award winning No 1 and No 2 Silo developments, the historic Grain Silo complex on the V&A Waterfront is being redeveloped to house the Zeitz Museum of Contemporary Art Africa (Zeitz MOCAA). There are also four new mixed-use, sustainable developments under construction in the district including new corporate offices, a residential devel- opment, a Virgin Active Classic Health Club and a mid-range internationally branded hotel, as well as over 1 050 additional parking bays. When completed in early 2017, approximately 2 500 people will work at the Silo district daily. “For example, the handover of No 5 Silo, which is located right in the centre of the congested construction site, had to be carefully managed to allow safe entry and exit for people, as well as deliveries,” he says. The project employed well over 1 000 people when it peaked, and achieved 2 million LTIF. This is an incredible achievement, and clearly one of the other reasons why WBHO has remained the contractor of choice on this project. AfriSam, as the leading concrete material supplier in the Western Cape, is well positioned to supply high demand and speciality mix designs such as the Silo Precinct project. ABOVE: AfriSam took a proactive stance in this supply contract with upfront intensive testing to achieve the correct concrete mix, through to extensive planning to ensure the timeous delivery. RIGHT: AfriSam’s scope of supply to Silo No 3, 4 and 5 includes standard and speciality concrete mixes. This includes the complex column mix which was designed specifically for the No 5 Silo project.