Materials / Civil & Infrastructure

Road Base & Sub-Base.

Road base and sub-base production. Spec-compliant gradation from primary blast rock through to finished civil aggregate.

What we produce

Road base, sub-base, capping, and drainage aggregate for civil infrastructure projects — highways, rail, hardstand, port works, mine haul roads. Output to client spec sheet or to common civil aggregate standards depending on the project.

How we produce it

Multi-stage circuit: primary jaw breaks down blast or quarried rock, secondary cone produces cubical product, multi-deck screens separate to spec gradation. Output is sampled and tested daily against the client's published spec.

Engagement model

Most road base work is mobile or campaign crushing — plant moved to site or to a quarry stockpile, runs the campaign, demobilises clean. For larger or longer-running programmes contract crushing fits better.

Typical output fractions

/ Confirmed per client spec at scoping

  • Type 1 / Class 2 road base
  • Sub-base aggregate
  • Capping layer material
  • Drainage aggregate
Service line

Best run as: Mobile Crushing.

Mobile crushing plant brought to your site, sized to the job. Configurable from a single jaw through to multi-stage primary, secondary, and tertiary circuits. Quick mobilisation, clean demob.

/ FAQ

Road Base & Sub-Base questions.

Can Rostrevor produce road base to Type 1 / Class 2 spec?

Yes. Output gradation is confirmed during scoping against the client's published spec sheet. Daily QA sampling and testing ensures compliance across the campaign.

What's the typical tonnage for a road base campaign?

Campaigns range from tens of thousands of tonnes for civil works through to hundreds of thousands for major infrastructure. Plant sized to programme requirements.

Next step

Let's discuss your next project.

Tender brief, scope of work, or a five-minute call to see if we're a fit. Quickest reply is by email.