SPECIALIST CONTRACTORS OR SUPPLIERS
PIONEER FOODS: MALMESBURY SILOS – STRUCTURAL REPAIRS TO GRAIN SILO COMPLEX AT MALMESBURY HILL P ioneer Foods is one of South Africa’s largest
and develop a complete silo rehabilitation repair methodology. The decision was to repair the entire silo complex, utilising external structural reinforcement methods such as horizontal carbon fibre composite strapping, along with various types of mortars, epoxies and protective coatings. After assessing the original diagnostic survey and rehabilitation proposals, as well as trialling various product options, the team decided that Sika’s innovative products were the best-performing solutions for this project. LNW was appointed as the Consulting Engineers and Project Managers, and Sika products were specified in the tender.
producers and distributors of various well-known food and beverage brands and products. Operating predominantly within South Africa, while exporting to more than 80 countries across the globe, the Pioneer Foods Group provides wholesale, retail and informal trade customers with consistently high-quality products. Sitting within the Essential Foods division, their Grains business unit prides itself on supplying foods of exceptional quality that are safe, nutritious and trusted by millions of consumers every day. So, when Pioneer Foods detected large vertical cracks in their grain silos of their Malmesbury Mill silo complex in 2018, they appointed LNW Consulting Engineers and Project Managers to investigate and determine the structural integrity and remaining lifecycle of the silo complex
REDEC Industrial and Engineering Solutions, a specialised contractor, was appointed as the successful repair contractor.
comprising of a 39 tubular starbin configuration. Once the investigation was completed, LNW were directed to refurbish the silos to ensure the high standards Pioneer Foods promises its customers. The silo is around 77 years old, already having outlived its original life expectancy. To determine the cause of the structural distress and the best possible way to extend the silo’s life for another 20 years, LNW conducted a root cause analysis. Making use of the latest state-of-the-art infrared and high-resolution scanning equipment, LNW collected evidence of the typical distress patterns to complete a thorough structural analysis. The insights gained from this investigation indicated ring tension failure of the horizontal reinforcing with large areas of fatigue within the concrete walls. This information enabled the engineers to design
PROJECT INFORMATION
• Company entering: Sika SA • Client: Pioneer Foods • Start date: October 2019 • End date: January 2020 • Main Contractor: Redec
• Project Manager: LNW Consulting • Consulting Engineer: LNW Consulting • Quantity Surveyor: LNW Consulting
56 21 st Best Project Awards 2022
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