
CementX is a materials technology company specialising in advanced concrete solutions for infrastructure development. Headquartered in Sandton, Johannesburg, CementX builds on the engineering legacy of RCC Africa Construction, founded in 2017 by Steve Musundi.
With deep expertise in concrete engineering, admixtures, infrastructure delivery, project management, and mining rehabilitation, CementX operates across Africa and the United States. Our work is grounded in proven engineering practice and shaped by real-world construction demands.
Supported by a network of experienced specialists and strategic partners, CementX delivers sustainable, cost-effective, high-value solutions tailored to each project and environment.

Built on proven civil and materials engineering, shaped by real-world infrastructure delivery.

We develop advanced concrete solutions by refining RCC methodology into high-performance products like Xcrete.

Every solution is engineered around site conditions, load requirements, and long-term performance goals.

From consultation and testing to mix delivery and on-site assistance, we support projects through every stage.

Lower cement usage, local sourcing, and durable infrastructure reduce environmental and lifecycle impact.

Our solutions are designed to perform across diverse terrains, climates, and infrastructure demands.
We are 50% cheaper than standard asphalt contraction. Allowing you to put your budget where it needs it most.
RCC reduces Co2 emissions up to 40%. We can add to your carbon credits.
Locally Sourced materials supports local businesses.
Build up to 1km per hour. RCC opens to traffic within 48 Hrs.
Over a 30 year life span, there is limited repairs needed.
After RCC, you don't need any additional labor.