Roadbase Suppliers for Construction and Trade, Public also welcome

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          Roadbase

          Roadbase is used in areas of heavy traffic like road construction, haul roads, hardstands etc. It is available as a CBR 15 (2.5), CBR 45 (2.3), and a CBR 60 (2.1).

Manufacturing

The production of Roadbase, involves taking a range of various aggregate sizes made during the crushing process and blending them into a balanced formula that produces the required outcome. The Roadbase must meet the specified requirements of grading ie workability, placeability, strength, density, long-term durability and appearance. For this reason the Roadbase supplier needs to clearly understand the properties of the aggregate constituents intended to be used in the Roadbase, so repeatable and reproducible measurable engineering properties can be achieved in the final product.

Roadbase Driveways

Water and Compaction

The quantity of water within a specific Roadbase blend is critical to enable the particles to come together during placement and compaction in a manner that allows as much air as possible to be removed and only aggregate particles left to fill the voids within the rock skeleton. This will ensure that even distribution of all the particles throughout the mix, has occurred even after compaction has taken place. Too little water within the roadbase during placement and compaction can have the effect of allowing particles to segregate or be broken down and thus in situations density will not be able to be obtained. Too much water and the overwork required to dry back can further breakdown aggregate particles and lead to segregation affecting the ability to obtain proper compaction within that roadbase layer.

Improper compaction can lead to a multitude of issues and ultimately pavement failure in a shorter time than allowed for in the design. One of the main issues arising from under compaction of road base layers will be rutting of the surface.
This will be due to the movement of particle during cycles of wetting and drying during the life of the pavement.