Aggregate is the term used for blasted rock from a quarry that is crushed and screened to produce smaller sized material suitable for further processing within the construction industry such as fills, ready mixed concrete and coated roadstone. It can range from 150mm single size down to dust.
Typical use for finished surface prior to blacktop or concrete application, should be non-frost susceptible and generally will be a 40 mm evenly graded hard Limestone.
6F2/6F5 Capping Layer
Typical use for capping sub formation prior to laying Mot type 1 sub base normally to a depth of 150 mm dependant on ground conditions. Constituent materials are generally a 100mm to dust well graded
Type 6C Starter Layer
Typical use for a 6C would be for use in wet or unstable ground conditions prior to capping with 6F2 generally a quarried material from our hard limestone without fines content.
Typical use is for drainage works, backfill to crib walls and central reservation works on highways.
Typical use is for blinding over the surface of a hardcore prior to the laying of concrete to fill any interstice.
Also used to bed drainage pipes as a protection layer. Other sand fill such as rock sand is used for mass fill and embankment fills due to its excellent compaction qualities.
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