Page 7 - RoadCem in Road Reconstruction & Rehabilitation_Neat

ROAD RECONSTRUCTION WITH

ROADCEM

Strain v Durability

By limiting the strain at the interface between the RoadCem bound road base and

the under lying sub soils to 200 microns extensive laboratory and field testing

shows that the design can achieve at least million loading cycles before deflection

occurs. If we reduce this to 100 microns the number of cycles becomes almost

infinite.

What does this mean for road construction using RoadCem?
The first thing is that the base layer needed is just a single RoadCem layer which can be constructed using in-situ material from the
existing sub-soils or from recycled road materials.
That means that both time and money will be saved in the construction process.
The use of RoadCem will also increase the modulus of elasticity and the flexibility of the road base, so that the following advantages are
realised:-
Looking first at our segment, which is loaded by force “F”. The factor “a” means that because of the higher modulus of elasticity a
higher load is now needed to cause the same amount of deflection.

Secondly after the load has passed the segment, no deformation will remain, because of the high flexibility of the RoadCem base.

Typically a RoadCem stabilised material has 3 times longer durability than conventional road construction – meaning 3 times longer
maintenance intervals.