Cementitious Stabilisation

Cementitious stabilisation uses cement or blended products that contain some or one of the following supplementary materials, lime, flyash or slag. These supplementary additives reduce shrinkage and develop strength more gradually with a resultant reduction in cracking.

The cementitious material reacts with the water in the soil to form a cementitious material. The resultant pavement is defined as modified or lightly or heavily bound dependent in the strength of the material which is dependent on the proportion of cement added.

Cementitious stabilisation can be used in subgrades, subbases or bases.

Cementitious stabilisation gives similar advantages to lime in subgrades and unsealed roads and are usually used in low cohesion soils which are unsuitable for lime.

In bases and subbases they improve strength and water resistant so reducing design pavement depth and making low quality pavement material suitable for pavements.

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