Aggregate

Crushed rock aggregates produced at the Ronez quarries are supplied direct to the local construction industry, as well as forming the basis for an extensive range of products.

Ronez quarries are grano-diorite deposits, a phaneritic texture intrusive igneous rock similar to granite but containing more plagioclase feldspar than orthoclase feldspar, is from the Pre-Cambrian / Cambrian era and has been worked for construction materials since the eighteenth century. The deposit varies in its composition with sections being granite, areas of both pink and grey, and other sections being dark blue diorite.

Crushed rock aggregates produced at the Ronez quarries are supplied direct to the local market, as well as forming the basis for an extensive range of construction products including ready mixed concrete, asphalt, concrete products, road construction and surfacing, sea defences and drainage.

(J) = Available in Jersey Only

(G) = Available in Guernsey Only

Sub-base Material

Size Type Density m³ Loose Density m³ Compacted
63mm Type 1 Granular Sub Base  SHW803    1850Kg/m³ 2200Kg/m³
63mm Type 3 Granular Sub Base SHW805 1850Kg/m³ 2200Kg/m³


Specifications for Highway Works (SHW)

Premium Aggregates

Size Type Density m³ Loose Density m³ Compacted
40/75mm Granite Aggregate (G)   1350Kg/m³ 1400Kg/m³
0/325mm Granite Aggregate (G)       
20/40mm Granite Aggregate 1500Kg/m³ 1650Kg/m³
10/20mm Granite Aggregate 1450Kg/m³ 1600Kg/m³
4/10mm Granite Aggregate 1500Kg/m³ 1600Kg/m³
2/6mm Granite Aggregate 1450Kg/m³ 1550Kg/m³
0/75mm Granite Dust (G)    
0/4mm Granite Sand 1850Kg/m³ 2250Kg/m³
0/4mm Bank Sand 1100Kg/m³  

Drainage

Size Type Density m³ Loose Density m³ Compacted
10/63mm Granite Aggregate       
5/20mm Granite Aggregate    
2/4mm Grit (G)    
100/150mm Clean Stone Granite (J)    1500Kg/m³ 1650Kg/m³

Crushed Rock, Sea Defence and Fill Material

Size Type Density m³ Loose Density m³ Compacted
100/150mm Clean Stone Aggregate (J)   1500Kg/m³ 1650Kg/m³
100/250mm Gabion Stone Aggregate (J) 1500Kg/m³ 1650Kg/m³
  Rock Armour Stone    
  Random Builders Aggregate (G)       

Pipe Bedding

Size Type Density m³ Loose Density m³ Compacted
4/10mm Pipe Bedding Granite Aggregate SHW594 (J)    1500Kg/m³ 1600Kg/m³
10/20mm Pipe Bedding Granite Aggregate SHW503 (J) 1450Kg/m³ 1600Kg/m³

 

Specifications for Highway Works (SHW)

Secondary Aggregates

Size Type Density m³ Loose Density m³ Compacted
0/80mm Secondary Aggregate    1520Kg/m³ 1855Kg/m³
40/80mm Secondary Aggregate 1500Kg/m³ 1650Kg/m³
0/40mm Secondary Hoggin 1572Kg/m³ 1900Kg/m³
0/20mm Secondary Hoggin  1650Kg/m³ 2000Kg/m³
0/10mm Secondary Fine Hoggin (J)    1650Kg/m³ 2000Kg/m³

Recycled Aggregates

Size Type Density m³ Loose Density m³ Compacted
  Road Planings    
0/15mm Granite Aggregate (G)    
0/40mm Granite Aggregate (G) 1572Kg/m³ 1900Kg/m³
40/90mm Granite Aggregate (T3) (G)    
0/90mm Granite Aggregate (G)      
  Recycled Granite Aggregate (G)    
  Fine Fill and Tipping Material (G)       

Imported and Blended Aggregates

Size Type Density m³ Loose Density m³ Compacted
4/10mm Marine Dredged Path Gravel (G)    1500Kg/m³ 1600Kg/m³
10/20mm Chard (Flint) Gravel (G) 1450Kg/m³ 1600Kg/m³
0/4mm General Purpose Sand (G) 1850Kg/m³ 2250Kg/m³
0/20mm General Purpose Sand (G) 1725Kg/m³ 2000Kg/m³
0/10mm General Purpose Sand (G)   1950Kg/m³  

Bagged Aggregates

  25kg Tote *
2/4mm Granite Aggregate
2/6mm Granite Aggregate
4/10mm Granite Aggregate
10/20mm Granite Aggregate
0/4mm Granite Sand
0/4mm Sharp Washed Sand, Tatchell Stonemason Sand
0/4mm Bank Sand
0/4mm General Purpose Sand (G)
0/2mm Kiln Dried Sand
0/10mm Blended Aggregates (for concrete site mix)
0/20mm Granite Aggregate (G)
0/10mm Granite Aggregate (G)
4/10mm Marine Dredged Path Gravel (G)
20mm Chard Gravel (G)
10/20mm Chard Flint (G)
2/8mm Lightweight Aggregate
Ronez Readybag 9-1 (25kg 0/10 mm Blended Cement Aggregate) (J)   
2EW Silica Sand (J)

 

* Tote = Approx 900/950kg.