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Aggregates & Materials

R J Trevail can source and supply a large variey of aggregates and other materials to customers far and wide

Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world.

Due to the relatively high hydraulic conductivity value as compared to most soils, aggregates are widely used in drainage applications such as foundation and French drains, septic drain fields, retaining wall drains, and roadside edge drains. Aggregates are also used as base material under foundations, roads, and railroads.

In other words, aggregates are used as a stable foundation or road/rail base with predictable, uniform properties (e.g. to help prevent differential settling under the road or building), or as a low-cost extender that binds with more expensive cement or asphalt to form concrete.



We supply the following

  • Fine Sand
  • Yellow Sand
  • 3/4 Dust
  • Pea Gravel
  • 3mm Grit
  • 803 Hardcore
  • 14mm or 20mm Granite
  • 10mm or 20mm Golden Flint
  • 75/40A Clean Stone
  • Hedging Stone
  • Topsoil
  • Cotswold Limestone
  • Plum Slate
  • Blue/Grey Slate
  • 4″ & 6″ Block
  • Trench Blocks
  • 4×4 or 6×4 Dolly Blocks
  • Bricks
  • Paving Slabs
  • Railway Sleepers
  • Cement
  • Postcrete
  • Mortar Plasticiser
  • Geotextile Membrane
  • Various Drilled stones for water features
  • & much more…

Call now for a quote/more information

01872 573547

Related Services


A dedicated haulage service transporting your important cargo all over Cornwall and the South West

Plant hire

Self-driven or operator supplied hire of diggers, dumpers, trailers and more


Work done to prepare sub-surfaces for the start of construction work.

Contact Us

R. J. Trevail, Treskyber, Rose, Truro, Cornwall. TR4 9PQ

01872 573547