Cement Treated Base

Cement-treated base or CTB is a mixture of aggregate material or soils combined with specific amounts of water and cement. The mixture hardens after compaction and cures to form a strong paving material.

CTB is commonly used for interstates, state roads, and airports as a base layer under the asphalt top layer.

Recycled asphalt (RAP) and milled base are increasingly being used to replace virgin aggregate in CTB recipes.

Factors affecting the quality of CTB are directly related to the weigh devices and electrical controls of your mixing plant:

1. Accurate cement dosage
2. Correct water content
3. Aggressive homogeneous mixing
4. Compaction
5. Proper time to cure