Construction World June 2022

A LIGHTWEIGHT FILL SOLUTION The application of geofoam as a lightweight fill solution for road construction at the Clairwood Logistics Park in Durban is a first for South Africa. This proved a more economical and viable solution for the container yard infrastructure compared to the rigid inclusions applied elsewhere on-site. ConstructionWorld spoke to ISO Moulders, the manufacturers of this lightweight fill solution.

What does ISO Moulders do? ISO Moulders is the largest converter of EPS (expanded polystyrene) in Southern Africa. We are experts in appliance packaging, sheet for SIPS panel, seedtrays and thermal insulation. We provide innovative solutions and pride ourselves in supplying a high level of service to the industries we support. What is your footprint? ISO Moulders is nationwide What is your Unique Selling Point? We can help you from design conception through to tooling and production How important is sustainability for ISO Moulders? ISO Moulders is always looking for ways to reduce our carbon footprint. We recycle all our own scrap and are members of Polyco SA which runs recycling and collection programmess throughout the country. We are ISO 14001 (Environmental Management) accredited and are registered producers of packaging materials in line with the Government’s ‘Extended Producer Responsibility program (EPR)’. What did ISO Moulders supply

lightweight GeoBlock to achieve zero net loading on the pipeline. What are the benefits of EPS geofoam? GeoBlock is an Ultra-lightweight backfill – less than 1% of the weight of the surrounding soil, which allows designers the ability to achieve zero nett loading on underground structures without needing to further protect it from the additional loads of a roadway and traffic. The placing of the GeoBlock is quick and can be done by hand. This significantly reduces the construction time on a project. Settling is also reduced due to the reduction in loading. Where was the EPS geofoammanufactured? The GeoBlock for the Clairwood Project was supplied from our Jacobs Factory. How much was supplied to the project? The project cubic meterage was 1 500 m 3 of GeoBlock. A brief history of ISO Moulders

for the construction of the Clairwood Logistics Park? GeoBlock. What necessitated this solution? The Clairwood development has a NATCOS oil pipeline running through the corner of the property. This was a problem for the developer who needed to have an access road for the property to run above a section of the pipeline. This was possible to achieve by removing the existing soil and replacing with ultra

21 CONSTRUCTION WORLD JUNE 2022