Repurposing builders’ rubble & other secondary materials

Iselula Crushing processes between 5,700 and 22,000 m3 of builders' rubble monthly to produce construction aggregates, diverting an equivalent volume from landfills and saving suppliers between R980,000 and R3.8 million in landfill costs per month. The facility recovers concrete, bricks, mortar, metal, tyres, timber, and PVC pipes, supporting 32 formal employees and 14 informal business opportunities for the local community.

• Iselula Crushing processes between 5,700 and 22,000 m3 of builders' rubble per month, converting concrete, bricks, and mortar into construction aggregates (G4, G5, G7, G9, and kerbmix). This operation diverts the same volume of material from landfills, resulting in monthly landfill space savings for suppliers valued between R980,000 and R3.8 million.
• The facility enables the recovery of various secondary materials that create economic opportunities for the community, including the sale of metal to scrap dealers, the collection of tyres by re-treaders, and the recovery of timber, PVC pipes, and bricks by small business owners and community members.
• The operation supports local employment through 32 formal staff positions on site and 14 informal job opportunities for people in informal businesses.

APA

Barnes, D. K. (2018). Repurposing builders’ rubble & other secondary materials. GreenCape. https://greencape.co.za/wp-content/uploads/2022/10/ISELULA-CRUSHING-CASE-STUDY-Final-5-11-2018-3.pdf

Chicago

Barnes, Dr. Kirsten. Repurposing builders’ rubble & other secondary materials. GreenCape, 2018. https://greencape.co.za/wp-content/uploads/2022/10/ISELULA-CRUSHING-CASE-STUDY-Final-5-11-2018-3.pdf.

Wikipedia

{{cite report |last1=Barnes |first1=Dr. Kirsten |title=Repurposing builders’ rubble & other secondary materials |publisher=GreenCape |date=July 2018 |url=https://greencape.co.za/wp-content/uploads/2022/10/ISELULA-CRUSHING-CASE-STUDY-Final-5-11-2018-3.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{barnes2018repurposing, author = {Barnes, Dr. Kirsten}, title = {{Repurposing builders’ rubble \& other secondary materials}}, institution = {GreenCape}, year = {2018}, month = jul, url = {https://greencape.co.za/wp-content/uploads/2022/10/ISELULA-CRUSHING-CASE-STUDY-Final-5-11-2018-3.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }