Sub-Base Aggregates and Materials
Sub-Base Aggregates and Materials

We also supply and deliver a broad range of sub-base aggregates, sub-base materials and graded construction aggregates throughout London, Surrey, Sussex and Kent. We deliver 24 hours a day, 7 days a week at very competitive prices, charging per tonne or on a load basis. Using our fleet of 'Green' and efficient Tipper and Grab lorries we deliver to most locations at low cost with minimal environmental impact.

Whichever sub-base aggregates, materials and graded construction aggregates you need, D J Grab services will ensure that your deliveries are made on time, and within budget.

Type 1 Primary Limestone

Type 1: Primary Limestone

  Sub-base aggregates
Type 1 Primary Granite

Type 1: Primary Granite

   
Type 1 Recycled Aggregate

Type 1: Recycled Aggregate

   
Type 1 Ecoblend

Type 1: EcoBlend™

A combination of primary and recycled aggregate developed by The Day Group Ltd, producing a material with the advantages of both.
   
Type 1 Recycled Black and White Aggregate

Type 1: Recycled Black and White

Crushed concrete and crushed asphalt combined.
   
Limestone Scalpings

Limestone Scalpings

Lower cost alternative to Type 1 with a higher proportion of fines and therefore less load bearing capability. Fill or sub-base material for driveways, car parks, paths and backfilling. Grading for this material is 40mm to dust with some clay, classed as non-frost susceptible.
   
Type 3 Limestone

Type 3 Limestone

For sports pitches, courts, equestrian arenas and driveways where drain blockage may be an issue and Sustainable Urban Drainage Systems (SUDS) legislation must be met. Also for hard standings, roads, paths and patios. 40mm unbound mixture as per the Specification for Highway Works, Clause 803. Open graded with less fines improving drainage compared to Type 1.
   
Graded Construction Aggregates
   
20/40 Limestone

20/40 Limestone

Free draining sub-base for equestrian riding arenas, roads, paths and drainage ditches. 20mm - 40mm crushed limestone with low fines content that forms a hard wearing and well drained surface when compacted.
   
40/75 Limestone

40/75 Limestone

Free draining sub-base for equestrian riding arenas, roads, paths and drainage ditches. 40mm - 75mm crushed limestone with low fines content that forms a hard wearing and well drained surface when compacted.
   

Other Dry Screened Limestone Sizes available

  • 10/63mm graded
  • 32/50mm graded
  • 20/32mm single sized
  • 10/20mm single sized
  • 6/14mm single sized
  • 4/10mm single sized
  • 2/6mm single sized
  • 4/20mm graded limestone
   

Washed Limestones

These are washed to remove fines and often referred to as cleanstones.
  • 20/40mm single sized
  • 4/20mm graded limestone
   

Granites

  • 4/20mm
  • 10/20mm
  • 20/32mm
  • 20/40mm
  • 28/50mm (Track Ballast)
   
Sub-Bases Using Recycled Aggregates
   

Specification Designation

Material Used

Type 1 to SHW Cl803 0/50mm Recycled Aggregate
Type 2 to SHW Cl804 0/50mm Recycled Aggregate
Class 6F4 SHW 600 series 0/50mm Recycled Aggregate
Class 6F5 SHW 600 series 0/125mm Recycled
Type 1 to SHW Cl803 0/50mm Asphalt/Recycled
Type 1 to SHW Cl803 EcoBlend™
Type 4 to SHW Cl807 0/50mm Recycled Asphalt
   
Type 2 Recycle Aggregate

Type 2: Recycled

Used as a layer under Type 1. An unbound sub-base material with more fines and a wider grading envelope than Type 1.
   
6F5 Recycled Aggregate

6F5 Recycled (Formerly 6F1 recycled)

Used for capping sub formations prior to laying Type 1 or Type 2 sub-base. Well graded material ranging from 125mm to dust.
   
6F4 Recycled Aggregate

6F4 Recycled (Formerly 6F1 Recycled)

Finer Capping Layer used in the same applications as 6F5 but with a finer grading. Generally 50mm to dust and evenly graded.
   
Type 3 recycled aggregate

Type 3 Recycled (formerly Type1x Recycled)

For sports pitches, courts, equestrian arenas and driveways where drain blockage may be an issue and Sustainable Urban Drainage Systems (SUDS) legislation must be met. Also for hard standings, roads, paths and patios. 40mm unbound mixture as per the Specification for Highway Works, Clause 803. Open graded with less fines improving drainage compared to Type 1.
   
6N and 6P Recycled Aggregates

6N and 6P Recycled

Selected granular fills for use in embankments and as backfill to concrete structures. 100% passing a 75mm sieve with no more than 15% passing 63 microns.
   
Road Planings

Road Planings

Used for hard standing and ideal as a finished surface for building sub-bases and farm tracks. Waste product of road resurfacing. Not suitable for drainage trenches.
   
Crushed Asphalt Type 4

Crushed Asphalt

Used as a hard core for temporary roadways and as a sub-base. A crushed recycled material with good cohesive qualities. Supplied as a 0-50mm and often referred to as a Type 4.