Page 134 - RoadCem Manual - PCT BV

• The courser the material, the lower the dose of Cement and RoadCem is.
• The finer the material, the higher the dose of Cement and RoadCem is.
• The higher the organic fraction in the soil, the higher the dose of Cement and RoadCem.
• The higher the silt contents of the soil, the higher the dose of Cement and RoadCem.
• The higher the clay contents of the soil, the higher the dose of Cement and RoadCem.
Figure 5.27 Soil classification.
Another factor that has an influence on the dose of stabilizing agents Cement and RoadCem is the traffic intensity and maximum load expected on the road during the design life time of the road. This is related to the breaking strength and fatigue of the stabilized (bound) material after treatment.
In principle, the following basic rules will be applied:
• The longer the design life, the higher the dose of Cement and RoadCem will be.
• The higher the wheel load expected, the higher the dose of Cement will be.
• The higher the intensity of expected traffic, the higher the dose of RoadCem will be.
If we assume that the layer below the stabilization layer (sub garade in the traditional pavement structure) consists of the same material as the stabilized layer, than the equivalent pavement structure for the RoadCem method would be as shown in figure 5.28.
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