Carefully engineered mining and processing methodologies allow Rheebok Quarry to efficiently manage an exceptionally competent granite resource.
energy distribution for acceptable fragmentation and controlled ground vibration levels that remain within regulatory and operational limits. Electronic initiation systems and carefully sequenced blast timing are used to optimise energy release and improve fragmentation consistency where possible. Even with refined blasting practices, the granite’s natural competency still results in substantial secondary breaking requirements. The quarry’s drill-and-blast contractor works closely with site management to continuously refine blast designs based on observed fragmentation performance, bench conditions and downstream plant requirements. Pit development and mining strategy Current mining activities focus heavily on opening new working areas and exposing additional reserves for future extraction. According to Clayton, one of the operation’s ongoing challenges is maintaining sufficient open working faces while simultaneously managing the large volumes of oversize blasted material generated during mining. Bench development requires con- tinuous stripping, scaling and selec- tive loading practices. In many areas,
Secondary rock breaking plays a critical role at Rheebok Quarry to manage oversized blasted material and maintain efficient plant throughput.
Rheebok Quarry supplies high quality crushed granite into major road-building and infrastructure projects across the Western Cape.
MODERN QUARRYING Quarter 2 | 2026 20
Made with FlippingBook flipbook maker